说明
之前的文章已经介绍过如何使用apacheant 执行jacoco工具，下面开始介绍如何使用maven使用jacoco工具。
1.首先新建一个maven项目
如图所示：
2：HelloWorld
新建一个测试类helloworld，code 如图所示：
3：HelloWorldTest
新建一个测试类helloworld test，code 如图所示：
4：编辑pom.xml文件
编辑pom.xml文件，增加依赖包和jacoco配置，文件如下所示：
<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.test.jacoco</groupId>
<artifactId>testJacoco</artifactId>
<version>0.0.1-SNAPSHOT</version>
<name>JaCoCo Examples</name>
<properties>
<project.build.sourceEncoding>UTF-8</project.build.sourceEncoding>
<project.reporting.outputEncoding>UTF-8</project.reporting.outputEncoding>
<!-- Sonar -->
<sonar.java.coveragePlugin>jacoco</sonar.java.coveragePlugin>
<sonar.dynamicAnalysis>reuseReports</sonar.dynamicAnalysis>
<!-- The destination file for the code coverage report has to be set to the same value
in the parent pom and in each module pom. Then JaCoCo will add up information in
the same report, so that, it will give the cross-module code coverage. -->
<sonar.jacoco.itReportPath>${project.basedir}/target/jacoco.exec</sonar.jacoco.itReportPath>
<sonar.language>java</sonar.language>
</properties>
<dependencies>
<!--
<dependency>
<groupId>junit</groupId>
<artifactId>junit</artifactId>
<version>4.8.1</version>
<scope>test</scope>
</dependency>
-->
<dependency>
<groupId>junit</groupId>
<artifactId>junit</artifactId>
<version>4.11</version>
<scope>test</scope>
</dependency>
</dependencies>
<build>
<pluginManagement>
<plugins>
<plugin>
<groupId>org.jacoco</groupId>
<artifactId>jacoco-maven-plugin</artifactId>
<version>0.5.3.201107060350</version>
</plugin>
</plugins>
</pluginManagement>
<plugins>
<plugin>
<groupId>org.jacoco</groupId>
<artifactId>jacoco-maven-plugin</artifactId>
<configuration>
<includes>com.*</includes>
</configuration>
<executions>
<execution>
<id>pre-test</id>
<goals>
<goal>prepare-agent</goal>
</goals>
</execution>
<execution>
<id>post-test</id>
<phase>test</phase>
<goals>
<goal>report</goal>
</goals>
</execution>
</executions>
</plugin>
<plugin>
<groupId>org.apache.maven.plugins</groupId>
<artifactId>maven-compiler-plugin</artifactId>
<configuration>
<source>1.5</source>
<target>1.5</target>
</configuration>
</plugin>
</plugins>
</build>
</project>
5：打包测试或者命令mvn test执行
如图所示：
6: 执行结果
执行结果：
至此，基于maven的jacoco的使用讲解完了，整合jenkins 和 sonar 请参考“Jacoco覆盖率工具使用”；
