匆忙写了个能跑的东西出来，还很烂

.gitignore

@@ -1,7 +1,7 @@
 # Covers JetBrains IDEs: IntelliJ, RubyMine, PhpStorm, AppCode, PyCharm, CLion, Android Studio, WebStorm and Rider
 # Reference: https://intellij-support.jetbrains.com/hc/en-us/articles/206544839
 
-.target
+target
 
 # User-specific stuff
 .idea/**/workspace.xml
@@ -78,3 +78,4 @@ fabric.properties
 # Android studio 3.1+ serialized cache file
 .idea/caches/build_file_checksums.ser
 /.idea
+/src/main/resources/mybatis-config.xml

pom.xml

@@ -0,0 +1,113 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<project xmlns="http://maven.apache.org/POM/4.0.0"
+         xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
+         xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 https://maven.apache.org/xsd/maven-4.0.0.xsd">
+    <modelVersion>4.0.0</modelVersion>
+
+    <groupId>me.lensfrex</groupId>
+    <artifactId>LittleBusters</artifactId>
+    <version>0.0.1-dev</version>
+    <name>LittleBusters</name>
+    <packaging>war</packaging>
+
+    <properties>
+        <project.build.sourceEncoding>UTF-8</project.build.sourceEncoding>
+        <maven.compiler.target>1.8</maven.compiler.target>
+        <maven.compiler.source>1.8</maven.compiler.source>
+        <junit.version>5.8.1</junit.version>
+    </properties>
+
+    <dependencies>
+        <dependency>
+            <groupId>javax.servlet</groupId>
+            <artifactId>javax.servlet-api</artifactId>
+            <version>4.0.1</version>
+            <scope>provided</scope>
+        </dependency>
+        <dependency>
+            <groupId>org.junit.jupiter</groupId>
+            <artifactId>junit-jupiter-api</artifactId>
+            <version>${junit.version}</version>
+            <scope>test</scope>
+        </dependency>
+        <dependency>
+            <groupId>org.junit.jupiter</groupId>
+            <artifactId>junit-jupiter-engine</artifactId>
+            <version>${junit.version}</version>
+            <scope>test</scope>
+        </dependency>
+        <dependency>
+            <groupId>org.glassfish.jersey.core</groupId>
+            <artifactId>jersey-server</artifactId>
+            <version>3.0.4</version>
+        </dependency>
+        <dependency>
+            <groupId>org.glassfish.jersey.containers</groupId>
+            <artifactId>jersey-container-servlet</artifactId>
+            <version>3.0.4</version>
+        </dependency>
+        <dependency>
+            <groupId>org.glassfish.jersey.inject</groupId>
+            <artifactId>jersey-hk2</artifactId>
+            <version>3.0.4</version>
+        </dependency>
+
+        <!-- https://mvnrepository.com/artifact/com.google.code.gson/gson -->
+        <dependency>
+            <groupId>com.google.code.gson</groupId>
+            <artifactId>gson</artifactId>
+            <version>2.9.0</version>
+        </dependency>
+
+        <!-- https://mvnrepository.com/artifact/org.mindrot/jbcrypt -->
+        <dependency>
+            <groupId>org.mindrot</groupId>
+            <artifactId>jbcrypt</artifactId>
+            <version>0.4</version>
+        </dependency>
+
+        <dependency>
+            <groupId>io.jsonwebtoken</groupId>
+            <artifactId>jjwt-api</artifactId>
+            <version>0.11.5</version>
+        </dependency>
+        <dependency>
+            <groupId>io.jsonwebtoken</groupId>
+            <artifactId>jjwt-impl</artifactId>
+            <version>0.11.5</version>
+            <scope>runtime</scope>
+        </dependency>
+        <dependency>
+            <groupId>io.jsonwebtoken</groupId>
+            <artifactId>jjwt-gson</artifactId> <!-- or jjwt-gson if Gson is preferred -->
+            <version>0.11.5</version>
+            <scope>runtime</scope>
+        </dependency>
+
+        <!-- https://mvnrepository.com/artifact/org.mybatis/mybatis -->
+        <dependency>
+            <groupId>org.mybatis</groupId>
+            <artifactId>mybatis</artifactId>
+            <version>3.5.9</version>
+        </dependency>
+
+        <!-- https://mvnrepository.com/artifact/org.mariadb.jdbc/mariadb-java-client -->
+        <dependency>
+            <groupId>org.mariadb.jdbc</groupId>
+            <artifactId>mariadb-java-client</artifactId>
+            <version>3.0.4</version>
+        </dependency>
+
+
+    </dependencies>
+
+    <build>
+        <plugins>
+            <plugin>
+                <groupId>org.apache.maven.plugins</groupId>
+                <artifactId>maven-war-plugin</artifactId>
+                <version>3.3.2</version>
+            </plugin>
+        </plugins>
+    </build>
+</project>

src/main/java/me/lensfrex/littlebusters/ApiIndex.java

@@ -0,0 +1,16 @@
+package me.lensfrex.littlebusters;
+
+import jakarta.ws.rs.GET;
+import jakarta.ws.rs.Path;
+import jakarta.ws.rs.Produces;
+import jakarta.ws.rs.core.MediaType;
+
+@Path("/")
+public class ApiIndex {
+    @GET
+    @Produces(MediaType.TEXT_HTML)
+    public String index() {
+        return "Here is the API root of LittleBusters.</br>\n" +
+                "To use the API currently, please see the LittleBusters RESTFul API document.";
+    }
+}

src/main/java/me/lensfrex/littlebusters/RestTest.java

@@ -0,0 +1,15 @@
+package me.lensfrex.littlebusters;
+
+import jakarta.ws.rs.GET;
+import jakarta.ws.rs.Path;
+import jakarta.ws.rs.Produces;
+import jakarta.ws.rs.core.MediaType;
+
+@Path("/lb")
+public class RestTest {
+    @GET
+    @Produces(MediaType.TEXT_PLAIN)
+    public String getMessage() {
+        return "ASJKDFHYG";
+    }
+}

src/main/java/me/lensfrex/littlebusters/api/v1/Register.java

@@ -0,0 +1,86 @@
+package me.lensfrex.littlebusters.api.v1;
+
+import com.google.gson.Gson;
+import com.google.gson.annotations.SerializedName;
+import jakarta.ws.rs.POST;
+import jakarta.ws.rs.Path;
+import jakarta.ws.rs.Produces;
+import jakarta.ws.rs.core.MediaType;
+import me.lensfrex.littlebusters.api.v1.dao.UserInformation;
+import me.lensfrex.littlebusters.api.v1.dao.UserRegister;
+import me.lensfrex.littlebusters.api.v1.responses.RegisterResponseData;
+import me.lensfrex.littlebusters.api.v1.responses.general.ErrorResponse;
+import me.lensfrex.littlebusters.api.v1.responses.general.ResponseBase;
+import me.lensfrex.littlebusters.api.v1.utils.InputChecker;
+import me.lensfrex.littlebusters.api.v1.utils.MyBatisUtil;
+import org.apache.ibatis.session.SqlSession;
+import org.mindrot.jbcrypt.BCrypt;
+
+import java.util.UUID;
+
+@Path("/register")
+public class Register {
+    private final static Gson gson = new Gson();
+
+    @POST
+    @Produces(MediaType.APPLICATION_JSON)
+    public String register(String request) {
+        System.out.println("Start register.");
+        RegisterRequestBody registerRequestBody;
+        try {
+            registerRequestBody = gson.fromJson(request, RegisterRequestBody.class);
+            if (InputChecker.hasInvalidChar(registerRequestBody.userName) ||
+                    InputChecker.hasInvisibleChar(registerRequestBody.password)) {
+                ErrorResponse errorResponse = new ErrorResponse(1, "用户名或密码非法");
+
+                return gson.toJson(errorResponse);
+            }
+        } catch (Exception e) {
+            System.err.println(request);
+            ErrorResponse errorResponse = new ErrorResponse(2, "请求的数据格式不对");
+
+            return gson.toJson(errorResponse);
+        }
+
+        String userUUID = UUID.randomUUID().toString();
+        String userBcryptPasswd = BCrypt.hashpw(registerRequestBody.password, BCrypt.gensalt());
+
+        SqlSession sqlSession = MyBatisUtil.getSqlSession(true);
+        UserRegister userRegister = sqlSession.getMapper(UserRegister.class);
+
+        userRegister.addRegisterInfoIntoDb(userUUID, registerRequestBody.userName, userBcryptPasswd);
+
+        RegisterResponseData registerResponseBody = new RegisterResponseData(10101, userUUID, userBcryptPasswd);
+        ResponseBase<RegisterResponseData> response = new ResponseBase<>(200, "success", registerResponseBody);
+
+        return gson.toJson(response);
+    }
+
+    public static class RegisterRequestBody {
+        @SerializedName("user_name")
+        private String userName;
+
+        private String password;
+
+        public RegisterRequestBody(String userName, String password) {
+            this.userName = userName;
+            this.password = password;
+        }
+
+        public String getUserName() {
+            return userName;
+        }
+
+        public void setUserName(String userName) {
+            this.userName = userName;
+        }
+
+        public String getPassword() {
+            return password;
+        }
+
+        public void setPassword(String password) {
+            this.password = password;
+        }
+    }
+}

src/main/java/me/lensfrex/littlebusters/api/v1/beans/ProfileItem.java

@@ -0,0 +1,27 @@
+package me.lensfrex.littlebusters.api.v1.beans;
+
+public class ProfileItem {
+    private String itemName;
+    private String data;
+
+    public ProfileItem(String itemName, String data) {
+        this.itemName = itemName;
+        this.data = data;
+    }
+
+    public String getItemName() {
+        return itemName;
+    }
+
+    public void setItemName(String itemName) {
+        this.itemName = itemName;
+    }
+
+    public String getData() {
+        return data;
+    }
+
+    public void setData(String data) {
+        this.data = data;
+    }
+}

src/main/java/me/lensfrex/littlebusters/api/v1/dao/UserInformation.java

@@ -0,0 +1,10 @@
+package me.lensfrex.littlebusters.api.v1.dao;
+
+import org.apache.ibatis.annotations.Param;
+
+import java.util.Map;
+
+public interface UserInformation {
+
+    Map<String, Object> getBasicInfoByUserName(@Param("userName") String userName);
+}

src/main/java/me/lensfrex/littlebusters/api/v1/dao/UserRegister.java

@@ -0,0 +1,9 @@
+package me.lensfrex.littlebusters.api.v1.dao;
+
+import org.apache.ibatis.annotations.Param;
+
+public interface UserRegister {
+    int addRegisterInfoIntoDb(@Param("uuid") String UUID,
+                              @Param("userName") String userName,
+                              @Param("password") String password);
+}

src/main/java/me/lensfrex/littlebusters/api/v1/inputTest.java

@@ -0,0 +1,15 @@
+package me.lensfrex.littlebusters.api.v1;
+
+import jakarta.ws.rs.POST;
+import jakarta.ws.rs.Path;
+import jakarta.ws.rs.Produces;
+import jakarta.ws.rs.core.MediaType;
+
+@Path("/inputTest")
+public class inputTest {
+    @POST
+    @Produces(MediaType.APPLICATION_JSON)
+    public String inputTest(String string) {
+        return string;
+    }
+}

src/main/java/me/lensfrex/littlebusters/api/v1/login/Login.java

@@ -0,0 +1,89 @@
+package me.lensfrex.littlebusters.api.v1.login;
+
+import com.google.gson.Gson;
+import com.google.gson.JsonParseException;
+import com.google.gson.annotations.SerializedName;
+import com.sun.org.apache.xalan.internal.xsltc.trax.XSLTCSource;
+import jakarta.ws.rs.POST;
+import jakarta.ws.rs.Path;
+import jakarta.ws.rs.Produces;
+import jakarta.ws.rs.core.MediaType;
+import me.lensfrex.littlebusters.api.v1.dao.UserInformation;
+import me.lensfrex.littlebusters.api.v1.responses.LoginResponseData;
+import me.lensfrex.littlebusters.api.v1.responses.general.ErrorResponse;
+import me.lensfrex.littlebusters.api.v1.responses.general.ResponseBase;
+import me.lensfrex.littlebusters.api.v1.utils.InputChecker;
+import me.lensfrex.littlebusters.api.v1.utils.MyBatisUtil;
+import org.apache.ibatis.session.SqlSession;
+import org.mindrot.jbcrypt.BCrypt;
+
+import java.math.BigInteger;
+import java.time.LocalDate;
+import java.util.HashMap;
+import java.util.Map;
+
+@Path("/login")
+public class Login {
+    private final static Gson gson = new Gson();
+
+    @POST
+    @Produces(MediaType.APPLICATION_JSON)
+    public String login(String request) {
+        LoginRequestBody loginRequestBody;
+        try {
+            loginRequestBody = gson.fromJson(request, LoginRequestBody.class);
+            if (InputChecker.hasInvalidChar(loginRequestBody.userName) ||
+                    InputChecker.hasInvisibleChar(loginRequestBody.password)) {
+                ErrorResponse errorResponse = new ErrorResponse(100, "请求的用户名或密码非法");
+
+                return gson.toJson(errorResponse);
+            }
+
+            if ()
+            LoginResponseData loginResponseData = new LoginResponseData(((BigInteger) selectResult.get("uid")).intValue(), (String) selectResult.get("password"), LocalDate.now().toString());
+            ResponseBase<LoginResponseData> response = new ResponseBase<>(200, "success", loginResponseData);
+
+            return gson.toJson(response);
+
+        } catch (JsonParseException e) {
+            System.err.println(request);
+
+            ErrorResponse errorResponse = new ErrorResponse(300, "请求的数据格式不对");
+            return gson.toJson(errorResponse);
+        } catch (Exception e) {
+            System.err.println(request);
+            System.err.println(e.getMessage());
+
+            ErrorResponse errorResponse = new ErrorResponse(400, "服务器内部错误，请联系那个背锅的家伙。");
+            return gson.toJson(errorResponse);
+        }
+    }
+
+    public static class LoginRequestBody {
+        @SerializedName("user_name")
+        private String userName;
+
+        private String password;
+
+        public LoginRequestBody(String userName, String password) {
+            this.userName = userName;
+            this.password = password;
+        }
+
+        public String getUserName() {
+            return userName;
+        }
+
+        public void setUserName(String userName) {
+            this.userName = userName;
+        }
+
+        public String getPassword() {
+            return password;
+        }
+
+        public void setPassword(String password) {
+            this.password = password;
+        }
+    }
+}

src/main/java/me/lensfrex/littlebusters/api/v1/login/LoginIdentify.java

@@ -0,0 +1,24 @@
+package me.lensfrex.littlebusters.api.v1.login;
+
+import me.lensfrex.littlebusters.api.v1.dao.UserInformation;
+import me.lensfrex.littlebusters.api.v1.utils.MyBatisUtil;
+import org.apache.ibatis.session.SqlSession;
+import org.mindrot.jbcrypt.BCrypt;
+
+
+import java.util.Map;
+
+public class LoginIdentify {
+
+    public boolean identifyLoginUserName(String userName, String passwordSHA256) {
+        SqlSession sqlSession = MyBatisUtil.getSqlSession(true);
+
+        UserInformation mapper = sqlSession.getMapper(UserInformation.class);
+        Map<String, Object> selectResult = mapper.getBasicInfoByUserName(userName);
+        if (selectResult == null) {
+            return false;
+        }
+
+        return BCrypt.checkpw(passwordSHA256, (String) selectResult.get("password"));
+    }
+}

src/main/java/me/lensfrex/littlebusters/api/v1/pojos/UserResult.java

@@ -0,0 +1,17 @@
+package me.lensfrex.littlebusters.api.v1.pojos;
+
+public class UserResult {
+    public final int uid;
+    public final String UUID;
+    public final String password;
+    public final boolean deleted;
+    public final short accountStatus;
+
+    public UserResult(int uid, String UUID, String password, boolean deleted, short accountStatus) {
+        this.uid = uid;
+        this.UUID = UUID;
+        this.password = password;
+        this.deleted = deleted;
+        this.accountStatus = accountStatus;
+    }
+}

src/main/java/me/lensfrex/littlebusters/api/v1/responses/LoginResponseData.java

@@ -0,0 +1,55 @@
+package me.lensfrex.littlebusters.api.v1.responses;
+
+import com.google.gson.annotations.SerializedName;
+
+/**
+ * 登录响应中data字段的对象
+ */
+public class LoginResponseData {
+    /**
+     * 登录用户的uid
+     */
+    private int uid;
+
+    /**
+     * 用户本次登录得到的token
+     */
+    @SerializedName("access_token")
+    private String accessToken;
+
+    /**
+     * 用户此次得到的token的过期时间
+     */
+    @SerializedName("expired_at")
+    private String expiredAt;
+
+    public LoginResponseData(int uid, String accessToken, String expiredAt) {
+        this.uid = uid;
+        this.accessToken = accessToken;
+        this.expiredAt = expiredAt;
+    }
+
+    public int getUid() {
+        return uid;
+    }
+
+    public void setUid(int uid) {
+        this.uid = uid;
+    }
+
+    public String getAccessToken() {
+        return accessToken;
+    }
+
+    public void setAccessToken(String accessToken) {
+        this.accessToken = accessToken;
+    }
+
+    public String getExpiredAt() {
+        return expiredAt;
+    }
+
+    public void setExpiredAt(String expiredAt) {
+        this.expiredAt = expiredAt;
+    }
+}

src/main/java/me/lensfrex/littlebusters/api/v1/responses/ProfileResponseData.java

@@ -0,0 +1,24 @@
+package me.lensfrex.littlebusters.api.v1.responses;
+
+import me.lensfrex.littlebusters.api.v1.beans.ProfileItem;
+
+import java.util.ArrayList;
+import java.util.List;
+
+public class ProfileResponseData {
+    private List<ProfileItem> profileItems;
+
+    public ProfileResponseData(List<ProfileItem> profileItems) {
+        this.profileItems = new ArrayList<>(profileItems);
+    }
+
+    public List<ProfileItem> getProfileItems() {
+        return profileItems;
+    }
+
+    public void setProfileItems(List<ProfileItem> profileItems) {
+        this.profileItems = profileItems;
+    }
+}
+
+

src/main/java/me/lensfrex/littlebusters/api/v1/responses/RegisterResponseData.java

@@ -0,0 +1,52 @@
+package me.lensfrex.littlebusters.api.v1.responses;
+
+import com.google.gson.annotations.SerializedName;
+
+public class RegisterResponseData {
+    /**
+     * 用户注册分派到的uid
+     */
+    private int uid;
+
+    /**
+     * 用户本次注册时得到的token
+     */
+    @SerializedName("access_token")
+    private String accessToken;
+
+    /**
+     * 用户此次得到的token的过期时间
+     */
+    @SerializedName("expired_at")
+    private String expiredAt;
+
+    public RegisterResponseData(int uid, String accessToken, String expiredAt) {
+        this.uid = uid;
+        this.accessToken = accessToken;
+        this.expiredAt = expiredAt;
+    }
+
+    public int getUid() {
+        return uid;
+    }
+
+    public void setUid(int uid) {
+        this.uid = uid;
+    }
+
+    public String getAccessToken() {
+        return accessToken;
+    }
+
+    public void setAccessToken(String accessToken) {
+        this.accessToken = accessToken;
+    }
+
+    public String getExpiredAt() {
+        return expiredAt;
+    }
+
+    public void setExpiredAt(String expiredAt) {
+        this.expiredAt = expiredAt;
+    }
+}

src/main/java/me/lensfrex/littlebusters/api/v1/responses/general/ErrorResponse.java

@@ -0,0 +1,16 @@
+package me.lensfrex.littlebusters.api.v1.responses.general;
+
+/**
+ * 错误响应类。
+ */
+public class ErrorResponse extends ResponseBase<ErrorData> {
+    public ErrorResponse(int code, String message) {
+        super(code, message, null);
+    }
+}
+
+class ErrorData {}
+
+class ErrorCode {
+    public static final int REQUEST_PARAM_INVALID = 100;
+}

src/main/java/me/lensfrex/littlebusters/api/v1/responses/general/ResponseBase.java

@@ -0,0 +1,53 @@
+package me.lensfrex.littlebusters.api.v1.responses.general;
+
+import com.google.gson.annotations.SerializedName;
+
+public class ResponseBase<T> {
+    /**
+     * 信息码
+     */
+    private int code;
+
+    /**
+     * 处理信息
+     */
+    @SerializedName("msg")
+    private String message;
+
+    private T data;
+
+    /**
+     * 构造一个基本响应
+     * @param code 信息码
+     * @param message 处理信息
+     */
+    public ResponseBase(int code, String message, T data) {
+        this.code = code;
+        this.message = message;
+        this.data = data;
+    }
+
+    public int getCode() {
+        return code;
+    }
+
+    public void setCode(int code) {
+        this.code = code;
+    }
+
+    public String getMessage() {
+        return message;
+    }
+
+    public void setMessage(String message) {
+        this.message = message;
+    }
+
+    public T getData() {
+        return data;
+    }
+
+    public void setData(T data) {
+        this.data = data;
+    }
+}

src/main/java/me/lensfrex/littlebusters/api/v1/utils/InputChecker.java

@@ -0,0 +1,27 @@
+package me.lensfrex.littlebusters.api.v1.utils;
+
+public class InputChecker {
+
+    public static boolean hasInvalidChar(String input) {
+        char[] source = input.toCharArray();
+        for (char c : source) {
+            if (!((c >= 'a' && c <= 'z') || (c >= 'A' && c <= 'Z') ||
+                    (c >= '0' && c <= '9'))) {
+                return true;
+            }
+        }
+
+        return false;
+    }
+
+    public static boolean hasInvisibleChar(String input) {
+        char[] source = input.toCharArray();
+        for (char c : source) {
+            if (!(c >= ' ' && c <= '~')) {
+                return true;
+            }
+        }
+
+        return false;
+    }
+}

src/main/java/me/lensfrex/littlebusters/api/v1/utils/MyBatisUtil.java

@@ -0,0 +1,28 @@
+package me.lensfrex.littlebusters.api.v1.utils;
+
+import org.apache.ibatis.io.Resources;
+import org.apache.ibatis.session.SqlSession;
+import org.apache.ibatis.session.SqlSessionFactory;
+import org.apache.ibatis.session.SqlSessionFactoryBuilder;
+
+import java.io.IOException;
+import java.io.InputStream;
+
+public class MyBatisUtil {
+
+    private static SqlSessionFactory sqlSessionFactory;
+
+    static {
+        try {
+            String resource = "mybatis-config.xml";
+            InputStream inputStream = Resources.getResourceAsStream(resource);
+            sqlSessionFactory = new SqlSessionFactoryBuilder().build(inputStream);
+        } catch (IOException e) {
+            e.printStackTrace();
+        }
+    }
+
+    public static SqlSession getSqlSession(boolean autoCommit) {
+        return sqlSessionFactory.openSession(autoCommit);
+    }
+}

src/main/resources/mappers/LoginSqlMapper.xml

@@ -0,0 +1,13 @@
+<?xml version="1.0" encoding="UTF-8"?>
+
+<!DOCTYPE mapper
+        PUBLIC "-//mybatis.org//DTD Config 3.0//EN"
+        "http://mybatis.org/dtd/mybatis-3-mapper.dtd">
+
+<mapper namespace="me.lensfrex.littlebusters.api.v1.dao.UserInformation">
+    <select id="getBasicInfoByUserName" resultType="Map" parameterType="java.lang.String">
+        select uid, uuid, passwd as password, deleted, account_status as accountStstus
+        from `account_basic`
+        where user_name = #{userName}
+    </select>
+</mapper>

src/main/resources/mappers/RegisterSqlMapper.xml

@@ -0,0 +1,12 @@
+<?xml version="1.0" encoding="UTF-8"?>
+
+<!DOCTYPE mapper
+        PUBLIC "-//mybatis.org//DTD Config 3.0//EN"
+        "http://mybatis.org/dtd/mybatis-3-mapper.dtd">
+
+<mapper namespace="me.lensfrex.littlebusters.api.v1.dao.UserRegister">
+    <insert id="addRegisterInfoIntoDb">
+        insert into `LittleBusters`.`account_basic` (`uuid`, `user_name`, `passwd`)
+        values (#{uuid}, #{userName}, #{password})
+    </insert>
+</mapper>

src/main/webapp/404.html

@@ -0,0 +1,93 @@
+<!DOCTYPE html>
+
+<head>
+    <title>出问题啦 - 真不愧是lensfrex的破站呢</title>
+    <meta http-equiv="Content-Type" name="viewport" content="text/html width=device-width initial-scale=1"
+          charset=utf-8>
+    <style>
+        a {
+            text-decoration: none;
+            font-size: 15.0pt;
+            font-family: sans-serif;
+            margin-top: 10.0pt;
+            margin-bottom: 10.0pt;
+            color: rgb(255, 255, 255);
+        }
+
+        /* a:hover {
+            text-decoration: none;
+        } */
+
+        body {
+            word-wrap: break-word;
+            background-image: url(https://res.ciduid.top/blog/backgrounds/95761609_p0_land_processed.jpg);
+            background-position: 45% 0;
+            background-repeat: no-repeat;
+            background-attachment: fixed;
+            background-size: cover;
+        }
+
+        #button_box {
+            background-color: rgba(102, 51, 153, 0.45);
+            border-radius: 10px;
+            padding: 7px 10px 7px 10px;
+            margin: 0 auto;
+            max-inline-size: fit-content;
+            text-align: left;
+        }
+
+        .button {
+            font-size: 15.0pt;
+            font-family: sans-serif;
+            margin-top: 10.0pt;
+            margin-bottom: 10.0pt;
+            color: rgb(255, 255, 255);
+        }
+
+        .center_box {
+            text-align: center;
+        }
+
+        .title {
+            text-align: center;
+            font-size: 40.0pt;
+            color: white;
+        }
+
+        .msg {
+            font-size: 20.0pt;
+            font-family: -webkit-body;
+            color: white;
+        }
+    </style>
+</head>
+
+<body lang="ZH-CN">
+<div>
+    <div id="main_div">
+        <!-- <p id="title" align="center" style="text-align:center; font-size: 40.0pt; color: white;">50x error page</p> -->
+        <p class="title">找不到页面...</p>
+
+        <hr color="white" size="10">
+
+        <div class="center_box">
+            <p class="msg">找不到你要访问的页面哟</p>
+            <p class="msg">是不是把地址给搞错了？</p>
+        </div>
+        <div class="center_box" style="margin-top: 100px;">
+            <!-- <br><br> -->
+            <div id="button_box">
+                <a href="https://huhu.ciduid.top" class="button">
+                    -> 要不，去博客那里瞧瞧？
+                </a>
+                <br><br>
+                <a href="javascript:history.back(-1)" class="button">
+                    -> 还是说只是想回上一页？
+                </a>
+            </div>
+        </div>
+    </div>
+</div>
+</body>
+
+</html>

src/main/webapp/WEB-INF/web.xml

@@ -0,0 +1,27 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<web-app xmlns="http://xmlns.jcp.org/xml/ns/javaee"
+         xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
+         xsi:schemaLocation="http://xmlns.jcp.org/xml/ns/javaee http://xmlns.jcp.org/xml/ns/javaee/web-app_4_0.xsd"
+         version="4.0">
+
+    <servlet>
+        <servlet-name>LittleBustersApiV1</servlet-name>
+        <servlet-class>org.glassfish.jersey.servlet.ServletContainer</servlet-class>
+
+        <init-param>
+            <param-name>jersey.config.server.provider.packages</param-name>
+            <param-value>me.lensfrex.littlebusters</param-value>
+        </init-param>
+
+        <init-param>
+            <param-name>com.sun.jersey.api.json.POJOMappingFeature</param-name>
+            <param-value>true</param-value>
+        </init-param>
+    </servlet>
+
+    <servlet-mapping>
+        <servlet-name>LittleBustersApiV1</servlet-name>
+        <url-pattern>/api/v1/*</url-pattern>
+    </servlet-mapping>
+
+</web-app>

src/main/webapp/css/welcomepage.css

@@ -0,0 +1,180 @@
+body {
+    word-wrap: break-word;
+    /* background: url(https://res.ciduid.top/static/imgs/compressed/93527505_p0_conpressed.jpg) no-repeat fixed; */
+    background-position: 45% 0;
+    background-size: cover;
+}
+
+.login-box {
+    background-color: rgb(256, 256, 256, 0.6);
+    position: fixed;
+    top: 10%;
+    left: 5%;
+    border-radius: 15px;
+    padding: 20px 20px 17px 20px;
+}
+
+.input-field-group {
+    transition: height .5s;
+}
+
+.login-box-title {
+    font-size: 45px;
+    padding-bottom: 40px;
+}
+
+.input-field input {
+    width: 400px;
+    height: 40px;
+    font-family: Consolas monospace;
+    padding-left: 10px;
+    font-size: 16px;
+    font-weight: bold;
+    border-radius: 10px;
+    border: none;
+    background: rgba(256, 256, 256, 0.6);
+    outline: none;
+    outline: 0;
+    transition: background-color .5s;
+}
+
+.input-field input:focus {
+    background-color: rgb(214, 234, 248, 0.6);
+}
+
+.input-field {
+    margin-bottom: 15px;
+}
+
+/* 仿的是pixiv上登录页的按钮 */
+.operator-box .big-button {
+    display: block;
+    margin-top: 15px;
+    margin-bottom: 15px;
+    width: 190px;
+    height: 40px;
+    line-height: 40px;
+    border-radius: 10px;
+    border-style: none;
+    color: #fff;
+
+    outline: none;
+    font-weight: 700;
+    font-size: 14px;
+    text-align: center;
+    transition: background-color .2s;
+    cursor: pointer;
+    display: inline-block;
+    text-decoration: none;
+}
+
+#login-botton {
+    background-color: rgb(0 150 250);
+}
+
+#register-botton {
+    background-color: rgb(34 139 34);
+}
+
+.botton-box {
+    text-align: center;
+    display: flex;
+    justify-content: space-between;
+}
+
+.operator-box .big-button:hover {
+    background-color: #0382d6;
+}
+
+.operator-box .rl-layout-box .small-link {
+    cursor: pointer;
+}
+
+.rl-layout-box {
+    text-align: center;
+    display: flex;
+    justify-content: space-between;
+    /* line-height: 25px; */
+}
+
+#dialogMask {
+    width: 100%;
+    height: 100%;
+    word-wrap: break-word;
+    position: fixed;
+    top: 0;
+    left: 0;
+    background: rgb(45 44 44 / 45%);
+    transition: background 300ms;
+    z-index: 1001;
+    display: none;
+}
+
+#background {
+    width: 100%;
+    height: 100%;
+    background: url(https://res.ciduid.top/static/imgs/compressed/93527505_p0_conpressed.jpg) no-repeat fixed;
+    background-position: 45% 0;
+    background-size: cover;
+    word-wrap: break-word;
+    position: fixed;
+    top: 0;
+    left: 0;
+    z-index: -1;
+    filter: blur(1.5px);
+    /* 稍微放大除白边 */
+    transform: scale(1.01);
+}
+
+.dialogContentBox {
+    display: block;
+    position: fixed;
+    top: 50%;
+    left: 50%;
+    width: 435px;
+    /* height: 313px; */
+    margin-left: -227px;
+    margin-top: -200px;
+    box-shadow: 2px 2px 11px #a0a0a0, -2px -2px 4px #a0a0a0;
+    background-color: #fff;
+    border-radius: 15px;
+    padding: 30px 20px 15px 20px;
+}
+
+.dialogContentBox .titleBox {
+}
+
+.dialogContentBox .titleBox #title {
+    font-size: 30px;
+    margin: auto auto 15px auto;
+}
+
+.dialogContentBox .bodyBox p {
+    font-size: 20px;
+}
+
+.dialogContentBox .bottonBox {
+    text-align: right;
+    /* margin: auto auto 15px auto; */
+}
+
+.dialogContentBox .bottonBox #okbtn {
+    border: none;
+    background: rgb(0 150 250);
+    cursor: pointer;
+    color: white;
+    font-family: sans-serif;
+    font-size: 16px;
+    border-radius: 5px;
+    height: 31px;
+    width: 80px;
+}
+
+#errMsgBox p {
+    margin: 0 0 0 0;
+    color: red;
+}
+
+@media screen and (max-width: 494px) {
+
+}

src/main/webapp/index.html

@@ -0,0 +1,52 @@
+<!DOCTYPE html>
+<html lang="zh">
+
+<head>
+    <meta charset="utf-8">
+    <meta name="viewport" content="width=device-width, initial-scale=1">
+    <title>欢迎 - LittleBusters</title>
+
+    <link rel="stylesheet" type="text/css" href="css\welcomepage.css">
+
+    <script src="js/sha256-min.js"></script>
+    <script src="js/jquery-3.6.0.min.js"></script>
+
+    <script src="js/utils.js"></script>
+    <script src="js/welcomepage_message.js"></script>
+    <script src="js/events.js"></script>
+    <script src="js/init.js"></script>
+    <!--[if IE]><script>alert("别用IE浏览器啦，快换一个吧！");</script><![endif]-->
+
+</head>
+
+<!-- 前端不擅长，逻辑做的很简单，见谅 (￣﹏￣；)-->
+
+<body lang="ZH-CN">
+<div id="content">
+    <div id="background"></div>
+    <div id="dialogMask"></div>
+    <div class="login-box">
+        <div class="login-box-title">登录/注册</div>
+        <div class="input-field-group">
+            <div class="input-field">
+                <input id="username" type="text" autocomplete="username" placeholder="用户名/UID">
+            </div>
+            <div class="input-field">
+                <input id="passwd" type="password" autocomplete="current-password" placeholder="密码">
+            </div>
+            <div id="errMsgBox"></div>
+        </div>
+        <div class="operator-box">
+            <div class="botton-box">
+                <button class="big-button" type="submit" id="register-botton">注册</button>
+                <button class="big-button" type="submit" id="login-botton">登录</button>
+            </div>
+            <div class="rl-layout-box">
+                <a class="small-link" id="forgotPasswordLabel">不记得密码了？</a>
+            </div>
+        </div>
+    </div>
+</div>
+</body>
+
+</html>

src/main/webapp/js/events.js

@@ -0,0 +1,28 @@
+function login() {
+    console.log("start login");
+    username = $("#username").val();
+    password = $("#passwd").val();
+
+    if (!checkInputDataCorrect(username, password)) {
+        return;
+    }
+
+    encPassword = encryptPassword(password);
+    postData = {
+        "user_name": username,
+        "password": encPassword
+    };
+
+    $.ajax({
+        url: "/api/v1/login",
+        type: "post",
+        dataType: "json",
+        data: JSON.stringify(postData),
+        success: (result) => {
+            showDialog("Test", "获取到数据：" + JSON.stringify(result));
+        },
+        error: (msg, status) => {
+            showMessage("登陆时发生错误：",JSON.stringify(msg));
+        }
+    })
+}

src/main/webapp/js/init.js

@@ -0,0 +1,12 @@
+init();
+
+function init() {
+    addEventListeners();
+}
+
+function addEventListeners() {
+    $(document).on("click", "#register-botton", register);
+    $(document).on("click", "#login-botton", login);
+    $(document).on("click", "#forgotPasswordLabel", forgotPasswd);
+}
+

src/main/webapp/js/sha256-min.js

@@ -0,0 +1,16 @@
+/*
+CryptoJS v3.1.2
+code.google.com/p/crypto-js
+(c) 2009-2013 by Jeff Mott. All rights reserved.
+code.google.com/p/crypto-js/wiki/License
+*/
+var CryptoJS=CryptoJS||function(h,s){var f={},t=f.lib={},g=function(){},j=t.Base={extend:function(a){g.prototype=this;var c=new g;a&&c.mixIn(a);c.hasOwnProperty("init")||(c.init=function(){c.$super.init.apply(this,arguments)});c.init.prototype=c;c.$super=this;return c},create:function(){var a=this.extend();a.init.apply(a,arguments);return a},init:function(){},mixIn:function(a){for(var c in a)a.hasOwnProperty(c)&&(this[c]=a[c]);a.hasOwnProperty("toString")&&(this.toString=a.toString)},clone:function(){return this.init.prototype.extend(this)}},
+q=t.WordArray=j.extend({init:function(a,c){a=this.words=a||[];this.sigBytes=c!=s?c:4*a.length},toString:function(a){return(a||u).stringify(this)},concat:function(a){var c=this.words,d=a.words,b=this.sigBytes;a=a.sigBytes;this.clamp();if(b%4)for(var e=0;e<a;e++)c[b+e>>>2]|=(d[e>>>2]>>>24-8*(e%4)&255)<<24-8*((b+e)%4);else if(65535<d.length)for(e=0;e<a;e+=4)c[b+e>>>2]=d[e>>>2];else c.push.apply(c,d);this.sigBytes+=a;return this},clamp:function(){var a=this.words,c=this.sigBytes;a[c>>>2]&=4294967295<<
+32-8*(c%4);a.length=h.ceil(c/4)},clone:function(){var a=j.clone.call(this);a.words=this.words.slice(0);return a},random:function(a){for(var c=[],d=0;d<a;d+=4)c.push(4294967296*h.random()|0);return new q.init(c,a)}}),v=f.enc={},u=v.Hex={stringify:function(a){var c=a.words;a=a.sigBytes;for(var d=[],b=0;b<a;b++){var e=c[b>>>2]>>>24-8*(b%4)&255;d.push((e>>>4).toString(16));d.push((e&15).toString(16))}return d.join("")},parse:function(a){for(var c=a.length,d=[],b=0;b<c;b+=2)d[b>>>3]|=parseInt(a.substr(b,
+2),16)<<24-4*(b%8);return new q.init(d,c/2)}},k=v.Latin1={stringify:function(a){var c=a.words;a=a.sigBytes;for(var d=[],b=0;b<a;b++)d.push(String.fromCharCode(c[b>>>2]>>>24-8*(b%4)&255));return d.join("")},parse:function(a){for(var c=a.length,d=[],b=0;b<c;b++)d[b>>>2]|=(a.charCodeAt(b)&255)<<24-8*(b%4);return new q.init(d,c)}},l=v.Utf8={stringify:function(a){try{return decodeURIComponent(escape(k.stringify(a)))}catch(c){throw Error("Malformed UTF-8 data");}},parse:function(a){return k.parse(unescape(encodeURIComponent(a)))}},
+x=t.BufferedBlockAlgorithm=j.extend({reset:function(){this._data=new q.init;this._nDataBytes=0},_append:function(a){"string"==typeof a&&(a=l.parse(a));this._data.concat(a);this._nDataBytes+=a.sigBytes},_process:function(a){var c=this._data,d=c.words,b=c.sigBytes,e=this.blockSize,f=b/(4*e),f=a?h.ceil(f):h.max((f|0)-this._minBufferSize,0);a=f*e;b=h.min(4*a,b);if(a){for(var m=0;m<a;m+=e)this._doProcessBlock(d,m);m=d.splice(0,a);c.sigBytes-=b}return new q.init(m,b)},clone:function(){var a=j.clone.call(this);
+a._data=this._data.clone();return a},_minBufferSize:0});t.Hasher=x.extend({cfg:j.extend(),init:function(a){this.cfg=this.cfg.extend(a);this.reset()},reset:function(){x.reset.call(this);this._doReset()},update:function(a){this._append(a);this._process();return this},finalize:function(a){a&&this._append(a);return this._doFinalize()},blockSize:16,_createHelper:function(a){return function(c,d){return(new a.init(d)).finalize(c)}},_createHmacHelper:function(a){return function(c,d){return(new w.HMAC.init(a,
+d)).finalize(c)}}});var w=f.algo={};return f}(Math);
+(function(h){for(var s=CryptoJS,f=s.lib,t=f.WordArray,g=f.Hasher,f=s.algo,j=[],q=[],v=function(a){return 4294967296*(a-(a|0))|0},u=2,k=0;64>k;){var l;a:{l=u;for(var x=h.sqrt(l),w=2;w<=x;w++)if(!(l%w)){l=!1;break a}l=!0}l&&(8>k&&(j[k]=v(h.pow(u,0.5))),q[k]=v(h.pow(u,1/3)),k++);u++}var a=[],f=f.SHA256=g.extend({_doReset:function(){this._hash=new t.init(j.slice(0))},_doProcessBlock:function(c,d){for(var b=this._hash.words,e=b[0],f=b[1],m=b[2],h=b[3],p=b[4],j=b[5],k=b[6],l=b[7],n=0;64>n;n++){if(16>n)a[n]=
+c[d+n]|0;else{var r=a[n-15],g=a[n-2];a[n]=((r<<25|r>>>7)^(r<<14|r>>>18)^r>>>3)+a[n-7]+((g<<15|g>>>17)^(g<<13|g>>>19)^g>>>10)+a[n-16]}r=l+((p<<26|p>>>6)^(p<<21|p>>>11)^(p<<7|p>>>25))+(p&j^~p&k)+q[n]+a[n];g=((e<<30|e>>>2)^(e<<19|e>>>13)^(e<<10|e>>>22))+(e&f^e&m^f&m);l=k;k=j;j=p;p=h+r|0;h=m;m=f;f=e;e=r+g|0}b[0]=b[0]+e|0;b[1]=b[1]+f|0;b[2]=b[2]+m|0;b[3]=b[3]+h|0;b[4]=b[4]+p|0;b[5]=b[5]+j|0;b[6]=b[6]+k|0;b[7]=b[7]+l|0},_doFinalize:function(){var a=this._data,d=a.words,b=8*this._nDataBytes,e=8*a.sigBytes;
+d[e>>>5]|=128<<24-e%32;d[(e+64>>>9<<4)+14]=h.floor(b/4294967296);d[(e+64>>>9<<4)+15]=b;a.sigBytes=4*d.length;this._process();return this._hash},clone:function(){var a=g.clone.call(this);a._hash=this._hash.clone();return a}});s.SHA256=g._createHelper(f);s.HmacSHA256=g._createHmacHelper(f)})(Math);

src/main/webapp/js/utils.js

@@ -0,0 +1,28 @@
+function isLetter(source) {
+    for (i = 0; i < source.length; i++) {
+        char = source.charCodeAt(i);
+        if (!((char >= 65 && char <= 90) ||
+            (char >= 97 && char <= 122) ||
+            (char >= 48 && char <= 57))) {
+            return false;
+        }
+    }
+
+    return true;
+}
+
+function isNormalCharacter(source) {
+    for (i = 0; i < source.length; i++) {
+        char = source.charCodeAt(i);
+        if (!(char >= 32 && char <= 126)) {
+            return false;
+        }
+    }
+
+    return true;
+}
+
+function encryptPassword(password) {
+    sha256 = CryptoJS.SHA256;
+    return sha256(sha256(password).toString()).toString();
+}

src/main/webapp/js/welcomepage_message.js

@@ -0,0 +1,54 @@
+function forgotPasswd() {
+    showDialog("(￣﹏￣；)", "欸这个嘛...我还没做完呢...(￣﹏￣；)");
+}
+
+function register() {
+    showDialog("(￣﹏￣；)", "欸这个嘛...我还没做完呢...(￣﹏￣；)");
+}
+
+function closeDialog() {
+    $("#dialogMask").fadeOut(400);
+}
+
+function checkInputDataCorrect(username, password) {
+    if (username == "" || passwd == "") {
+        showMessage("用户名和密码都不可以是空的哦");
+        return false;
+    }
+
+    if (!isLetter(username)) {
+        showMessage("用户名只能是大小写字母和数字哦");
+        return false;
+    }
+
+    if (!isNormalCharacter(passwd)) {
+        showMessage("不知道你往密码框都搞了点什么东西...");
+        return false;
+    }
+    return true;
+}
+
+function showMessage(message) {
+    $("#errMsgBox")[0].innerHTML = `<p>${message}</p>`;
+}
+
+function showDialog(title, message) {
+    html = `<div class="dialogContentBox">
+                <div class="titleBox">
+                    <p id="title">${title}</p>
+                </div><hr>
+                <div class="bodyBox">
+                    <p id="bodyText">${message}</p>
+                </div>
+                <div class="bottonBox">
+                    <button id="okbtn">知道啦</button>
+                </div>
+            </div>`;
+
+    dialogMask = $("#dialogMask");
+
+    dialogMask[0].innerHTML = html;
+    $(".dialogContentBox .bottonBox #okbtn").click(closeDialog);
+    dialogMask.fadeIn(400);
+    dialogMask.css("display", "block");
+}