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  • Tomcat 启动 Debug模式

    如果debug启动遇到如下错误:

    ERROR: transport error 202: gethostbyname: unknown host
    ERROR: JDWP Transport dt_socket failed to initialize, TRANSPORT_INIT(510)
    JDWP exit error AGENT_ERROR_TRANSPORT_INIT(197): No transports initialized [../../../src/share/back/debugInit.c:750]
    FATAL ERROR in native method: JDWP No transports initialized, jvmtiError=AGENT_ERROR_TRANSPORT_INIT(197)

    则应该检查本地的hosts文件, 看127.0.0.1是不是被注掉了.

    在%CATALINA_HOME%instartup.bat中添加以下任意一行配置: 
    SET JAVA_OPTS=-Xdebug -Xrunjdwp:transport=dt_socket,address=8787,server=y,suspend=n 

    SET CATALINA_OPTS=-server -Xdebug -Xnoagent -Djava.compiler=NONE -Xrunjdwp:transport=dt_socket,server=y,suspend=n,address=8787 

    启动tomcat后,在控制台显示以下内容表示配置成功: 
    Listening for transport dt_socket at address: 8787

    在Spring Boot结合Maven的项目中, 如果要对embedded tomcat进行debug, 则需要在POM文件中加入以下内容

    <build>
      <plugins>
        <plugin>
          <groupId>org.springframework.boot</groupId>
          <artifactId>spring-boot-maven-plugin</artifactId>
            <configuration>
              <!-- enable remote debug for embed jvm, the following configuration suspend the process until a debugger has joined on port 8787 -->
              <jvmArguments>
                -Xdebug -Xrunjdwp:transport=dt_socket,server=y,suspend=y,address=8787     </jvmArguments>         </configuration>       </plugin>   </plugins> </build>
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  • 原文地址:https://www.cnblogs.com/haibinyuan/p/4886396.html
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