maven項目使用jacoco插件檢測代碼覆蓋率詳細配置

使用maven構建項目（java項目或者web項目都可以）

jacoco插件的配置參考官方網址：http://www.eclemma.org/jacoco/trunk/doc/maven.html

（1）配置jacoco的依賴jar包

<dependency><groupId>org.jacoco</groupId><artifactId>jacoco-maven-plugin</artifactId><version>0.7.8</version>
</dependency>

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（2）配置jacoco的插件，以及相關的goal

 <plugin><groupId>org.jacoco</groupId><artifactId>jacoco-maven-plugin</artifactId><version>0.7.8</version>
　　　　<!--這里的execution ,每一個執行的goal,對應的id必須是唯一的--><executions><execution><id>prepare-agent</id><goals><goal>prepare-agent</goal></goals></execution>
　　　　　　　　<!--這個check:對代碼進行檢測，控制項目構建成功還是失敗--><execution><id>check</id><goals><goal>check</goal></goals></execution>
　　　　　　　　<!--這個report:對代碼進行檢測，然后生成index.html在 target/site/index.html中可以查看檢測的詳細結果--><execution><id>report</id><phase>prepare-package</phase><goals><goal>report</goal></goals></execution></executions></plugin>

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（3）配置代碼檢查的約束 rules

<!-- Configuration 里面寫配置信息 --><configuration><!-- rules里面指定覆蓋規則 --><rules><rule implementation="org.jacoco.maven.RuleConfiguration"><element>BUNDLE</element><limits><!-- 指定方法覆蓋到80% --><limit implementation="org.jacoco.report.check.Limit"><counter>METHOD</counter><value>COVEREDRATIO</value><minimum>0.80</minimum></limit><!-- 指定指令覆蓋到80% --><limit implementation="org.jacoco.report.check.Limit"><counter>INSTRUCTION</counter><value>COVEREDRATIO</value><minimum>0.80</minimum></limit><!-- 指定行覆蓋到80% --><limit implementation="org.jacoco.report.check.Limit"><counter>LINE</counter><value>COVEREDRATIO</value><minimum>0.80</minimum></limit><!-- 指定類覆蓋到100%，不能遺失任何類 --><limit implementation="org.jacoco.report.check.Limit"><counter>CLASS</counter><value>MISSEDCOUNT</value><maximum>0</maximum></limit></limits></rule></rules>
</configuration>

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（4）完整的pom.xml的配置如下

pom.xml

<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>cn.demo</groupId><artifactId>answers</artifactId><version>0.0.1-SNAPSHOT</version><packaging>jar</packaging><name>answers</name><url>http://maven.apache.org</url><build><finalName>answers</finalName><plugins><plugin><inherited>true</inherited><groupId>org.apache.maven.plugins</groupId><artifactId>maven-compiler-plugin</artifactId><version>3.1</version><configuration><source>${compiler.source}</source><target>${compiler.target}</target><encoding>${project.build.sourceEncoding}</encoding></configuration></plugin>

　　　　　　　　<!--檢查代碼覆蓋率的插件配置--><plugin><groupId>org.jacoco</groupId><artifactId>jacoco-maven-plugin</artifactId><version>0.7.8</version><executions><execution><id>prepare-agent</id><goals><goal>prepare-agent</goal></goals></execution><execution><id>check</id><goals><goal>check</goal></goals></execution><execution><id>report</id><phase>prepare-package</phase><goals><goal>report</goal></goals></execution></executions><!-- Configuration 里面寫配置信息 --><configuration><!-- rules里面指定覆蓋規則 --><rules><rule implementation="org.jacoco.maven.RuleConfiguration"><element>BUNDLE</element><limits><!-- 指定方法覆蓋到80% --><limit implementation="org.jacoco.report.check.Limit"><counter>METHOD</counter><value>COVEREDRATIO</value><minimum>0.80</minimum></limit><!-- 指定指令覆蓋到80% --><limit implementation="org.jacoco.report.check.Limit"><counter>INSTRUCTION</counter><value>COVEREDRATIO</value><minimum>0.80</minimum></limit><!-- 指定行覆蓋到80% --><limit implementation="org.jacoco.report.check.Limit"><counter>LINE</counter><value>COVEREDRATIO</value><minimum>0.80</minimum></limit><!-- 指定類覆蓋到100%，不能遺失任何類 --><limit implementation="org.jacoco.report.check.Limit"><counter>CLASS</counter><value>MISSEDCOUNT</value><maximum>0</maximum></limit></limits></rule></rules></configuration></plugin></plugins></build><properties><project.build.sourceEncoding>UTF-8</project.build.sourceEncoding><compiler.source>1.7</compiler.source><compiler.target>1.7</compiler.target><junit.version>4.12</junit.version></properties><dependencies><dependency><groupId>org.jacoco</groupId><artifactId>jacoco-maven-plugin</artifactId><version>0.7.8</version></dependency><dependency><groupId>junit</groupId><artifactId>junit</artifactId><version>${junit.version}</version><scope>test</scope></dependency></dependencies>        
</project>

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