初始化

.idea/.gitignore

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+# Default ignored files
+/shelf/
+/workspace.xml
+# Datasource local storage ignored files
+/dataSources/
+/dataSources.local.xml
+# Editor-based HTTP Client requests
+/httpRequests/

.idea/compiler.xml

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+<?xml version="1.0" encoding="UTF-8"?>
+<project version="4">
+  <component name="CompilerConfiguration">
+    <annotationProcessing>
+      <profile name="Maven default annotation processors profile" enabled="true">
+        <sourceOutputDir name="target/generated-sources/annotations" />
+        <sourceTestOutputDir name="target/generated-test-sources/test-annotations" />
+        <outputRelativeToContentRoot value="true" />
+        <module name="demo11" />
+      </profile>
+    </annotationProcessing>
+  </component>
+</project>

.idea/inspectionProfiles/Project_Default.xml

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+<component name="InspectionProjectProfileManager">
+  <profile version="1.0">
+    <option name="myName" value="Project Default" />
+    <inspection_tool class="JavaDoc" enabled="true" level="WARNING" enabled_by_default="true">
+      <option name="TOP_LEVEL_CLASS_OPTIONS">
+        <value>
+          <option name="ACCESS_JAVADOC_REQUIRED_FOR" value="none" />
+          <option name="REQUIRED_TAGS" value="" />
+        </value>
+      </option>
+      <option name="INNER_CLASS_OPTIONS">
+        <value>
+          <option name="ACCESS_JAVADOC_REQUIRED_FOR" value="none" />
+          <option name="REQUIRED_TAGS" value="" />
+        </value>
+      </option>
+      <option name="METHOD_OPTIONS">
+        <value>
+          <option name="ACCESS_JAVADOC_REQUIRED_FOR" value="none" />
+          <option name="REQUIRED_TAGS" value="@return@param@throws or @exception" />
+        </value>
+      </option>
+      <option name="FIELD_OPTIONS">
+        <value>
+          <option name="ACCESS_JAVADOC_REQUIRED_FOR" value="none" />
+          <option name="REQUIRED_TAGS" value="" />
+        </value>
+      </option>
+      <option name="IGNORE_DEPRECATED" value="false" />
+      <option name="IGNORE_JAVADOC_PERIOD" value="true" />
+      <option name="IGNORE_DUPLICATED_THROWS" value="false" />
+      <option name="IGNORE_POINT_TO_ITSELF" value="false" />
+      <option name="myAdditionalJavadocTags" value="date" />
+    </inspection_tool>
+  </profile>
+</component>

.idea/jarRepositories.xml

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+<?xml version="1.0" encoding="UTF-8"?>
+<project version="4">
+  <component name="RemoteRepositoriesConfiguration">
+    <remote-repository>
+      <option name="id" value="central" />
+      <option name="name" value="Maven Central repository" />
+      <option name="url" value="https://repo1.maven.org/maven2" />
+    </remote-repository>
+    <remote-repository>
+      <option name="id" value="central" />
+      <option name="name" value="Central Repository" />
+      <option name="url" value="http://maven.aliyun.com/nexus/content/groups/public/" />
+    </remote-repository>
+    <remote-repository>
+      <option name="id" value="jboss.community" />
+      <option name="name" value="JBoss Community repository" />
+      <option name="url" value="https://repository.jboss.org/nexus/content/repositories/public/" />
+    </remote-repository>
+  </component>
+</project>

.idea/misc.xml

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+<?xml version="1.0" encoding="UTF-8"?>
+<project version="4">
+  <component name="ExternalStorageConfigurationManager" enabled="true" />
+  <component name="MavenProjectsManager">
+    <option name="originalFiles">
+      <list>
+        <option value="$PROJECT_DIR$/pom.xml" />
+      </list>
+    </option>
+  </component>
+  <component name="ProjectRootManager" version="2" project-jdk-name="17" project-jdk-type="JavaSDK">
+    <output url="file://$PROJECT_DIR$/out" />
+  </component>
+</project>

.idea/vcs.xml

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+<?xml version="1.0" encoding="UTF-8"?>
+<project version="4">
+  <component name="VcsDirectoryMappings">
+    <mapping directory="$PROJECT_DIR$" vcs="Git" />
+  </component>
+</project>

demo11.iml

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+<?xml version="1.0" encoding="UTF-8"?>
+<module type="JAVA_MODULE" version="4" />

pom.xml

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+<?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 http://maven.apache.org/xsd/maven-4.0.0.xsd">
+    <modelVersion>4.0.0</modelVersion>
+
+    <groupId>com.bwie</groupId>
+    <artifactId>demo11</artifactId>
+    <version>1.0-SNAPSHOT</version>
+
+    <parent>
+        <artifactId>spring-boot-dependencies</artifactId>
+        <groupId>org.springframework.boot</groupId>
+        <version>2.7.15</version>
+    </parent>
+
+    <dependencies>
+        <dependency>
+            <groupId>org.springframework.boot</groupId>
+            <artifactId>spring-boot-starter-web</artifactId>
+        </dependency>
+
+        <dependency>
+            <groupId>org.projectlombok</groupId>
+            <artifactId>lombok</artifactId>
+        </dependency>
+    </dependencies>
+
+</project>

src/main/java/com/bwie/App.java

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+package com.bwie;
+
+import org.springframework.boot.SpringApplication;
+import org.springframework.boot.autoconfigure.SpringBootApplication;
+
+@SpringBootApplication
+public class App {
+
+    public static void main(String[] args) {
+        SpringApplication.run(App.class);
+    }
+}

src/main/java/com/bwie/Filter/TokenFilter.java

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+package com.bwie.Filter;
+
+
+import com.bwie.config.LoginUserMap;
+import com.bwie.domian.UserInfo;
+import lombok.extern.slf4j.Slf4j;
+import org.springframework.beans.factory.annotation.Autowired;
+import org.springframework.stereotype.Component;
+
+import javax.servlet.*;
+import javax.servlet.http.HttpServletRequest;
+import javax.servlet.http.HttpServletResponse;
+import java.io.IOException;
+import java.nio.charset.StandardCharsets;
+
+
+@Slf4j
+//注册到容器中
+@Component
+//1、实现Filter，然后重写init，doFilter，destroy方法
+public class TokenFilter implements Filter {
+
+
+
+
+    String WHILE_LIST="/login";
+    String TOKEN_USER_KEY="token:user:";
+
+
+    @Override
+    public void init(FilterConfig filterConfig) throws ServletException {
+        Filter.super.init(filterConfig);
+    }
+
+
+    //过滤方法
+    @Override
+    public void doFilter(ServletRequest servletRequest, ServletResponse servletResponse, FilterChain filterChain) throws IOException, ServletException {
+        //先将其转成HttpServletRequest
+        HttpServletRequest request=(HttpServletRequest) servletRequest;
+
+        String requestURI = request.getRequestURI();
+        //如果不在白名单中，则检测token是否正常
+        if(!WHILE_LIST.contains(requestURI)){
+
+            //获取请求头的参数
+            String token = request.getHeader("token");
+            if(token == null || token.length() == 0){
+                resp(servletResponse,"账号未登录");
+                return;
+            }
+
+            //从redis中获取token是否存在，是否过期
+            UserInfo userInfo = LoginUserMap.get(token);
+            if(userInfo == null){
+                resp(servletResponse,"账号未登录");
+                return;
+            }
+
+        }
+
+        filterChain.doFilter(servletRequest, servletResponse);
+    }
+
+
+
+    @Override
+    public void destroy() {
+        Filter.super.destroy();
+    }
+
+
+    //相应方法封装
+    private void resp(ServletResponse servletResponse,String msg) throws IOException {
+        HttpServletResponse response=(HttpServletResponse) servletResponse;
+        ServletOutputStream outputStream = response.getOutputStream();
+        response.setStatus(401);
+        response.setContentType("application/json");
+        outputStream.write(msg.getBytes(StandardCharsets.UTF_8));
+    }
+}
+

src/main/java/com/bwie/config/LoginUserMap.java

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+package com.bwie.config;
+
+import com.bwie.domian.UserInfo;
+
+import java.util.HashMap;
+import java.util.Map;
+
+public class LoginUserMap {
+
+    private static final Map<String, UserInfo> userMap= new HashMap<>();
+
+
+    public static  void put(String token,UserInfo userInfo){
+        userMap.put(token,userInfo);
+    }
+
+    public static UserInfo get(String token){
+        return userMap.get(token);
+    }
+
+    public static void remove(String token){
+        userMap.remove(token);
+    }
+}

src/main/java/com/bwie/config/WebMvcConfig.java

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+package com.bwie.config;
+
+import com.bwie.Filter.TokenFilter;
+import org.springframework.beans.factory.annotation.Autowired;
+import org.springframework.boot.web.servlet.FilterRegistrationBean;
+import org.springframework.context.annotation.Bean;
+import org.springframework.context.annotation.Configuration;
+import org.springframework.web.servlet.config.annotation.WebMvcConfigurer;
+
+import javax.servlet.Filter;
+
+//@Configuration
+public class WebMvcConfig implements WebMvcConfigurer {
+
+    @Autowired
+    private TokenFilter tokenFilter;
+
+
+    /**
+    * 登录过滤器
+	* 如果这个没有配置的话，默认所有的请求都会走filter
+    */
+    @Bean
+    public FilterRegistrationBean<Filter> loginFilterRegistration(){
+        FilterRegistrationBean<Filter> registrationBean = new FilterRegistrationBean<>();
+        //设置过滤器
+        registrationBean.setFilter(tokenFilter);
+        registrationBean.setName("loginFilter");
+        //拦截路径,这个就不大好，每次新增接口都得添加新的拦截器
+        registrationBean.addUrlPatterns("/test/get");
+        //指定顺序，数字越小越靠前
+        registrationBean.setOrder(-1);
+        return registrationBean;
+    }
+
+
+
+}
+

src/main/java/com/bwie/controller/LoginController.java

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+package com.bwie.controller;
+
+import com.bwie.config.LoginUserMap;
+import com.bwie.domian.UserInfo;
+import com.bwie.domian.req.LoginReq;
+import org.springframework.web.bind.annotation.*;
+
+import java.util.UUID;
+
+@RestController
+@RequestMapping("/login")
+public class LoginController {
+
+
+    @PostMapping
+    public String login(@RequestBody LoginReq loginReq){
+
+        if (!(loginReq.getUserName().length()>2 && loginReq.getPassword().length()>4)){
+             return "登录失败";
+        }
+        String string = UUID.randomUUID().toString();
+        LoginUserMap.put(string, UserInfo.LoginReqBuild(string,loginReq));
+
+        return string;
+    }
+
+
+    @DeleteMapping
+    public String logout(@RequestHeader("token") String token){
+        LoginUserMap.remove(token);
+        return "退出成功";
+    }
+}

src/main/java/com/bwie/controller/TestController.java

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+package com.bwie.controller;
+
+import lombok.extern.log4j.Log4j2;
+import org.springframework.web.bind.annotation.PostMapping;
+import org.springframework.web.bind.annotation.RequestBody;
+import org.springframework.web.bind.annotation.RequestMapping;
+import org.springframework.web.bind.annotation.RestController;
+
+@Log4j2
+@RestController
+@RequestMapping("/test")
+public class TestController {
+    @PostMapping
+    public String post(@RequestBody String str){
+        log.info("接收到请求：{}",str);
+        return "请求成功";
+    }
+}

src/main/java/com/bwie/domian/UserInfo.java

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+package com.bwie.domian;
+
+import com.bwie.domian.req.LoginReq;
+import lombok.AllArgsConstructor;
+import lombok.Builder;
+import lombok.Data;
+import lombok.NoArgsConstructor;
+
+@Data
+@Builder
+@AllArgsConstructor
+@NoArgsConstructor
+public class UserInfo {
+    public String userId;
+    public String userName;
+    private String password;
+
+    public static UserInfo LoginReqBuild(String userId, LoginReq loginReq) {
+        return UserInfo.builder()
+                .userId(userId)
+                .userName(loginReq.getUserName())
+                .password(loginReq.getPassword()).build();
+    }
+}

src/main/java/com/bwie/domian/req/LoginReq.java

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+package com.bwie.domian.req;
+
+import lombok.Data;
+
+@Data
+public class LoginReq {
+
+    private String userName;
+    private String password;
+}

target/maven-archiver/pom.properties

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+artifactId=demo11
+groupId=com.bwie
+version=1.0-SNAPSHOT

target/maven-status/maven-compiler-plugin/compile/default-compile/createdFiles.lst

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+com\bwie\config\WebMvcConfig.class
+com\bwie\controller\LoginController.class
+com\bwie\domian\UserInfo.class
+com\bwie\Filter\TokenFilter.class
+com\bwie\controller\TestController.class
+com\bwie\domian\req\LoginReq.class
+com\bwie\domian\UserInfo$UserInfoBuilder.class
+com\bwie\config\LoginUserMap.class
+com\bwie\App.class

target/maven-status/maven-compiler-plugin/compile/default-compile/inputFiles.lst

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+D:\Project\demo11\src\main\java\com\bwie\config\LoginUserMap.java
+D:\Project\demo11\src\main\java\com\bwie\domian\req\LoginReq.java
+D:\Project\demo11\src\main\java\com\bwie\domian\UserInfo.java
+D:\Project\demo11\src\main\java\com\bwie\controller\LoginController.java
+D:\Project\demo11\src\main\java\com\bwie\controller\TestController.java
+D:\Project\demo11\src\main\java\com\bwie\App.java