远程调试tomcat

<p>
</p>
<p class="MsoNormal"><span lang="ZH">在做远程调试时，在</span><span lang="EN-US">windows</span><span lang="ZH">系统和非</span><span lang="EN-US">windows</span><span lang="ZH">系统下的配置，</span><span lang="EN-US">Tomcat</span><span lang="ZH">中会有所差别</span><span lang="EN-US">,</span><span lang="ZH">具体如下</span><span>：</span><span lang="EN-US"></span></p>
<p class="MsoNormal"><span lang="ZH">第一步、配置</span><span lang="EN-US">tomcat</span><span lang="EN-US"></span></p>
<p class="MsoNormal"><span lang="ZH">一、在</span><span lang="EN-US">windows</span><span lang="ZH">系统中</span><span>：</span><span lang="EN-US"></span></p>
<p class="MsoNormal"><span lang="ZH">打开</span><span lang="EN-US">%CATALINE_HOME%/bin</span><span lang="ZH">下的文件</span><span lang="EN-US">catalina.bat</span><span lang="ZH">，加入下面这行</span><span>：</span><span lang="EN-US"></span></p>
<p class="MsoNormal"><span lang="EN-US">set CATALINA_OPTS=-server -Xdebug
-Xnoagent
-Djava.compiler=NONE-Xrunjdwp:transport=dt_socket,server=y,suspend=n,address=8787</span><span>。</span><span lang="EN-US"></span></p>
<p class="MsoNormal"><span lang="ZH">其中</span><span lang="EN-US">address=8787</span><span lang="ZH">是没被使用的端口号。连接方式有两种，为</span><span lang="EN-US">dt_shmem</span><span lang="ZH">和</span><span lang="EN-US">dt_socket</span><span lang="ZH">，分别表示本机调试和远程调试。</span><span lang="EN-US"></span></p>
<p class="MsoNormal"><span lang="ZH">二、在非</span><span lang="EN-US">windows</span><span lang="ZH">系统中：</span><span lang="EN-US"></span></p>
<p class="MsoNormal"><span lang="ZH">还需要把</span><span lang="EN-US">% CATALINE_HOME %/bin/startup.sh</span><span lang="ZH">中的最后一行</span><span lang="EN-US">exec "$PRGDIR"/"$EXECUTABLE" start "$@" </span><span lang="ZH">中的</span><span lang="EN-US">start</span><span lang="ZH">改成</span><span lang="EN-US">jpda start</span><span lang="ZH">。由于默认的端口是</span><span lang="EN-US">8000</span><span lang="ZH">，所以如果</span><span lang="EN-US">8000</span><span lang="ZH">端口已有他用的话，还需在</span><span lang="EN-US">catalina.sh</span><span lang="ZH">文件中设置：</span><span lang="EN-US">JPDA_ADDRESS=8787</span><span lang="ZH">。</span><span lang="EN-US"></span></p>
<p class="MsoNormal"><span lang="ZH">输入命令</span><span lang="EN-US">startup.sh</span><span lang="ZH">或者</span><span lang="EN-US">catalina.sh jpda start</span><span lang="ZH">就可启动</span><span lang="EN-US">tomcat</span><span lang="ZH">。</span><span lang="EN-US"></span></p>
<p class="MsoNormal"><span lang="ZH">第二步、配置</span><span lang="EN-US">eclipse</span></p>
<p class="MsoNormal"><span lang="ZH">在</span><span lang="EN-US">Eclipse</span><span lang="ZH">中选择</span><span lang="EN-US">RunàDebug</span><span lang="ZH">，在弹出的对话框中右击</span><span lang="EN-US">Remote Java Application</span><span lang="ZH">新建一个远程调试项，如下如所示：</span><span lang="EN-US"></span></p>
<p class="MsoNormal"><span lang="EN-US"> </span></p>
<p class="MsoNormal"><span lang="EN-US"> </span></p>
<p class="MsoNormal"><span lang="ZH">在</span><span lang="EN-US">“Name”</span><span lang="ZH">输入框中输入远程调试的名称，在</span><span lang="EN-US">“Project”</span><span lang="ZH">中选择要调试的项目，在</span><span lang="EN-US">“Host”</span><span lang="ZH">中输入需要远程调试项目的</span><span lang="EN-US">IP</span><span lang="ZH">，也就是</span><span lang="EN-US">tomcat</span><span lang="ZH">所在的</span><span lang="EN-US">IP</span><span lang="ZH">，在</span><span lang="EN-US">“Port”</span><span lang="ZH">中输入设置的端口号，比如上面设置的</span><span lang="EN-US">8787</span><span lang="ZH">，然后钩选</span><span lang="EN-US">“Allow termination of remote VM”</span><span lang="ZH">，点击</span><span lang="EN-US">“Apply”</span><span lang="ZH">即可。</span><span lang="EN-US"></span></p>
<p class="MsoNormal"><span lang="ZH">设置完后就可以开始调试了，大概分一下几步：</span><span lang="EN-US"></span></p>
<p class="MsoNormal"><span lang="EN-US">1</span><span lang="ZH">、</span><span lang="EN-US"> </span><span lang="ZH">启动</span><span lang="EN-US">tomcat</span><span lang="ZH">（远程），如在控制台输出</span><span lang="EN-US">“Listening
for transport dt_socket at address: 8787”</span><span lang="ZH">，即说明在</span><span lang="EN-US">tomcat</span><span lang="ZH">中设置成功；</span><span lang="EN-US"></span></p>
<p class="MsoNormal"><span lang="EN-US">2</span><span lang="ZH">、</span><span lang="EN-US"> </span><span lang="ZH">在本机设置断点，即在需要监视的代码行前双击就会出现一个小圆点；</span><span lang="EN-US"></span></p>
<p class="MsoNormal"><span lang="EN-US">3</span><span lang="ZH">、</span><span lang="EN-US"> </span><span lang="ZH">进入上图界面，选择要调试的项，点击</span><span lang="EN-US">“Debug”</span><span lang="ZH">即可进行远程调试；</span><span lang="EN-US"></span></p>
<p class="MsoNormal"><span lang="EN-US">4</span><span lang="ZH">、</span><span lang="EN-US"> </span><span lang="ZH">当运行到设置了断点的代码行处即可看到如下图所示的浅绿条。</span><span lang="EN-US"></span></p>
<p class="MsoNormal"><span lang="EN-US"> </span></p>
<p class="MsoNormal"><span lang="ZH">按键操作：</span><span lang="EN-US"></span></p>
<p class="MsoNormal"><span lang="EN-US">1</span><span lang="ZH">、</span><span lang="EN-US">F5</span><span lang="ZH">键与</span><span lang="EN-US">F6</span><span lang="ZH">键均为单步调试，</span><span lang="EN-US">F5</span><span lang="ZH">是进入本行代码中执行，</span><span lang="EN-US">F6</span><span lang="ZH">是执行本行代码，跳到下一行；</span><span lang="EN-US"></span></p>
<p class="MsoNormal"><span lang="EN-US">2</span><span lang="ZH">、</span><span lang="EN-US">F7</span><span lang="ZH">是跳出函数；</span><span lang="EN-US"></span></p>
<p class="MsoNormal"><span lang="EN-US">3</span><span lang="ZH">、</span><span lang="EN-US">F8</span><span lang="ZH">是执行到最后。</span><span lang="EN-US"></span></p>
<p class="MsoNormal"><span lang="EN-US"></span></p>
<p class="MsoNormal"><span lang="EN-US"></span></p>
<p class="MsoNormal"><span lang="ZH">当然，为了方便，可以新建一个批处理文件，假如取名为</span><span lang="EN-US">debug.bat</span><span lang="ZH">，在这个文件中加入下面几行：</span><span lang="EN-US"></span></p>
<p class="MsoNormal"><span lang="EN-US"></span></p>
<p class="MsoNormal"><span lang="EN-US">cd %CATALINE_HOME%/bin</span></p>
<p class="MsoNormal"><span lang="EN-US">set JPDA_ADDRESS=8787 </span></p>
<p class="MsoNormal"><span lang="EN-US">set JPDA_TRANSPORT=dt_socket</span></p>
<p class="MsoNormal"><span lang="EN-US">set CATALINA_OPTS=-server -Xdebug
-Xnoagent -Djava.compiler=NONE
-Xrunjdwp:transport=dt_socket,server=y,suspend=n,address=8787</span></p>
<p class="MsoNormal"><span lang="EN-US">startup</span></p>
<p class="MsoNormal"><span lang="EN-US"></span></p>

<p>
<span lang="ZH">这样需要远程调试时，运行</span><span lang="EN-US">debug.bat</span><span lang="ZH">即可；不需要远程调试时，还是运行</span><span lang="EN-US">startup.bat</span><span lang="ZH">文件。</span></p>
<p></p>
<p><span lang="ZH">本文来自baidu文档</span></p>