1,ant下载，解压 ，环境配置；
配置：
export ANT_HOME=/Users/xxx/apache-ant-1.10.8
export PATH=${PATH}:${ANT_HOME}/bin
2，jacoco下载，解压
官网：https://www.eclemma.org/jacoco/
解压后，lib文件加找出jacocoant.jar，复制到ant环境lib包里
3，build.xml
文件放在ant环境bin包里
<?xml version="1.0" ?>
<?xml version="1.0" ?>
<project name="testExec" xmlns:jacoco="antlib:org.jacoco.ant" default="report">
<property name="test.server.host" value="127.0.0.1" />
<property name="local.server.host" value="127.0.0.1" />
<property name="sangClasspath" value="/Users/pengbo.zi/IdeaProjects/VBlog/blogserver/target/classes" />
<property name="sangSourcepath" value="/Users/pengbo.zi/IdeaProjects/VBlog/blogserver/src/main/java" />
<property name="reportfolderPath" value="/Users/pengbo.zi/JaCoCo_report" />
<!--让ant知道去哪儿找Jacoco-->
<taskdef uri="antlib:org.jacoco.ant" resource="org/jacoco/ant/antlib.xml">
<!-- 本地jacocoant.jar路径 -->
<classpath path="/Users/pengbo.zi/apache-ant-1.10.8/lib/jacocoant.jar" />
</taskdef>
<target name="clean">
<!-- 清空文件 -->
<delete dir="/Users/pengbo.zi/jacoco_data/report" />
<delete dir="/Users/pengbo.zi/jacoco_data/exec" />
</target>
<target name="dump">
<jacoco:dump address="${test.server.host}" reset="false" destfile="/Users/pengbo.zi/jacoco_data/jacoco_dump.exec" port="9527" append="true"/>
</target>
<target name="merge">
<!-- 合并多份exec文件 -->
<delete dir="/Users/pengbo.zi/jacoco_data/exec" />
<mkdir dir="/Users/pengbo.zi/jacoco_data/exec" />
<jacoco:merge destfile="/Users/pengbo.zi/jacoco_data/exec/merged.exec">
<fileset dir="/Users/pengbo.zi/jacoco_data/" includes="*.exec" />
</jacoco:merge>
</target>
<target name="report" depends="dump,merge">
<!-- Step 3: Create coverage report -->
<delete dir="${reportfolderPath}" />
<mkdir dir="${reportfolderPath}" />
<jacoco:report>
<!--
This task needs the collected execution data and ...
-->
<executiondata>
<file file="/Users/pengbo.zi/jacoco_data/exec/merged.exec"/>
</executiondata>
<!-- the class files and optional source files ... -->
<structure name="JaCoCo Report">
<group name="sang_related">
<sourcefiles encoding="UTF-8">
<fileset dir="${sangSourcepath}"/>
</sourcefiles>
<classfiles>
<fileset dir="${sangClasspath}"/>
</classfiles>
</group>
</structure>
<!-- 生成html报告文件地址 -->
<html destdir="${reportfolderPath}/report" encoding="utf-8"/>
<csv destfile="${reportfolderPath}/report.csv" />
<xml destfile="${reportfolderPath}/report.xml" />
</jacoco:report>
</target>
</project>
4，项目启动
java -javaagent:/Users/xxx/jacoco-0.8.5/lib/jacocoagent.jar=includes=xxx.*,output=tcpserver,port=9527,address=127.0.0.1 -jar /Users/xxx/java-project/xxx.jar -Xverify:none
5, ant命令
ant dump,ant merge,ant report;
参考：https://blog.csdn.net/qq_26392615/article/details/82228972
