如何在springboot中使用IDEA远程连接Debug
这篇文章主要介绍"如何在springboot中使用IDEA远程连接Debug"，在日常操作中，相信很多人在如何在springboot中使用IDEA远程连接Debug问题上存在疑惑，小编查阅了各式资料，整理出简单好用的操作方法，希望对大家解答"如何在springboot中使用IDEA远程连接Debug"的疑惑有所帮助！接下来，请跟着小编一起来学习吧！
1、先创建一个准备远程调试的Demo，注意构建项目的配置
4.0.0 org.springframework.boot spring-boot-starter-parent 2.1.4.RELEASE com.remote.test remote_test 0.0.1-SNAPSHOT remote_test Demo project for Spring Boot 1.8 org.springframework.boot spring-boot-starter org.springframework.boot spring-boot-starter-test test org.springframework.boot spring-boot-starter-web org.junit.jupiter junit-jupiter-api RELEASE test org.apache.maven.plugins maven-shade-plugin 2.2 org.springframework.boot spring-boot-maven-plugin 2.1.4.RELEASE true false *:* META-INF/*.SF META-INF/*.DSA META-INF/*.RSA package shade ${project.artifactId}-${project.version}-all META-INF/spring.handlers META-INF/spring.factories META-INF/spring.schemas com.remote.test.remote_test.RemoteTestApplication
package com.remote.test.remote_test; import org.slf4j.Logger;import org.slf4j.LoggerFactory;import org.springframework.web.bind.annotation.PostMapping;import org.springframework.web.bind.annotation.RequestMapping;import org.springframework.web.bind.annotation.RequestParam;import org.springframework.web.bind.annotation.RestController; import java.util.HashMap;import java.util.Map; @RestController@RequestMapping("remote/test")public class UserController { private static final Logger logger = LoggerFactory.getLogger(UserController.class); @PostMapping("selectByUserId") public String selectUserInfo(@RequestParam("userId") String userId) { try { Map userInfo = new HashMap<>(); userInfo.put("userId",userId); userInfo.put("age",23); userInfo.put("name","yanshao"); userInfo.put("address","shanghai"); logger.info("Query user information by user ID. userInfo: {}",userInfo.toString()); return this.success(userInfo); } catch (Exception e) { logger.error("Query user information by user ID. userId:{} ", userId, e); return this.fail(); } } private String success(Object data){ Map res = new HashMap<>(); res.put("code",0); res.put("desc","success"); res.put("data",data); return res.toString(); } private String fail(){ Map res = new HashMap<>(); res.put("code",1); res.put("desc","fail"); return res.toString(); } } 2、打包
输入：mvn clean package，（大概需要等几分钟），最好在构建之前指定本地repository，就不需要重新下载jar包了。
3、在IDEA配置远程Debug
指定socket port = 8081，指定准备debug的模块
4、在终端启动刚才打好的jar包
a. 先在IDEA启动debug
b. 然后在终端输入命令：java -agentlib:jdwp=transport=dt_socket,server=n,address=localhost:8081 -jar remote_test-0.0.1-SNAPSHOT-all.jar
5、测试
在准备请求的接口上标记断点
注意：必须先在IDEA启动Debug，然后再启动项目
➜ Desktop java -agentlib:jdwp=transport=dt_socket,server=n,address=localhost:8081 -jar remote_test-0.0.1-SNAPSHOT-all.jar
ERROR: transport error 202: connect failed: Connection refused
ERROR: JDWP Transport dt_socket failed to initialize, TRANSPORT_INIT(510)
JDWP exit error AGENT_ERROR_TRANSPORT_INIT(197): No transports initialized [debugInit.c:750]
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