Jacoco动态监测Web项目的覆盖率
我自己曾经尝试用python的urllib自己dump数据，结果tomcat的后台报错。
java.io.IOException: Invalid execution data file. at org.jacoco.agent.rt.internal_932a715.core.data.ExecutionDataReader.read(ExecutionDataReader.java:84) at org.jacoco.agent.rt.internal_932a715.output.TcpConnection.run(TcpConnection.java:59) at org.jacoco.agent.rt.internal_932a715.output.TcpServerOutput$1.run(TcpServerOutput.java:63) at java.lang.Thread.run(Thread.java:619) |
好奇为啥不行。翻阅Jacoco官网上的文档，找到了它的一个demo，修改参数连接到我的tomcat下dump数据，好使。
具体的配置和代码链接贴到这里，希望大家有用。希望后面有时间能扒拉一下源代码看看，本地化成自己的。
配置
下载jacoco的jar包，放到某个地方，然后在catalina.sh中配置如下：
JAVA_OPTS="-server -Xms2000m -Xmx2000m -Xmn800m -XX:PermSize=64m
-XX:MaxPermSize=256m -XX:SurvivorRatio=4 -XX:+UseConcMarkSweepGC
-XX:MaxTenuringThreshold=15 -Dfile.encoding=utf8 -Duser.language=zh
-javaagent:/home/auser/myproject/apache-tomcat-6.0.37/lib/
jacocoagent.jar=includes=com.xxx.*,output=tcpserver,port=8494,
address=10.10.10.10"
当然，针对jaococ，真正有用的是-javaagent=yourpath/jacocoagent.jar=[opt]=[val],[opt]=[val]这段：
-javaagent:/home/iteqa/cms/apache-tomcat-6.0.37/lib/
jacocoagent.jar=includes=com.baidu.*,output=tcpserver,port=8494,
address=10.10.10.10"
dump数据
http://www.eclemma.org/jacoco/trunk/doc/examples/java/ExecutionDataClient.java
测试ok，能够dump出数据
生成报告
http://www.eclemma.org/jacoco/trunk/doc/examples/java/ReportGenerator.java
测试报错，can't find class loader ....
找个下班时间继续研究研究
maven依赖
该程序使用maven管理时的依赖
<dependency>
<groupId>org.jacoco</groupId>
<artifactId>org.jacoco.core</artifactId>
<version>0.7.1.201405082137</version>
</dependency>
<dependency>
<groupId>org.jacoco</groupId>
<artifactId>org.jacoco.report</artifactId>
<version>0.7.1.201405082137</version>
</dependency>
ExecutionDataClient
用于生成xxx.exec数据的程序
public class ExecutionDataClient { private static final String DESTFILE = "jacoco-client.exec"; private static final String ADDRESS = "10.xx.xx.xx"; private static final int PORT = 8494; /** * Starts the execution data request. * * @param args * @throws IOException */ public static void main(final String[] args) throws IOException { final FileOutputStream localFile = new FileOutputStream(DESTFILE); final ExecutionDataWriter localWriter = new ExecutionDataWriter( localFile); // Open a socket to the coverage agent: final Socket socket = new Socket(InetAddress.getByName(ADDRESS), PORT); final RemoteControlWriter writer = new RemoteControlWriter( socket.getOutputStream()); final RemoteControlReader reader = new RemoteControlReader( socket.getInputStream()); reader.setSessionInfoVisitor(localWriter); reader.setExecutionDataVisitor(localWriter); // Send a dump command and read the response: writer.visitDumpCommand(true, false); reader.read(); socket.close(); localFile.close(); } private ExecutionDataClient() { } } |
