java jacoco maven插件未报告测试覆盖率

Question

我试着用jacoco和maven。当我运行mvn clean测试时，我希望覆盖率输出会写入目标/覆盖率报告，但是当我打开索引时。html在构建之后，它是空的

我检查了以下内容， -杰科科。exec文件存在，其中包含一组类名 -在coverage html中有一个链接“Sessions”，当我点击它时，我会看到一堆似乎已经执行的类 -我在运行maven命令时没有看到错误或警告

我不明白为什么报告是空的。从我看到的所有例子来看，这似乎应该是可行的。我错过了什么

我正在为maven插件使用以下jacoco配置

  <plugin>
    <groupId>org.jacoco</groupId>
    <artifactId>jacoco-maven-plugin</artifactId>
    <configuration>
      <append>true</append>
      <skip>false</skip>
      <excludes/>
      <outputDirectory>${project.build.directory}/coverage-reports/</outputDirectory>
      <dataFile>${project.build.directory}/jacoco.exec</dataFile>
      <includes>
        <include>mypackage.*</include>
      </includes>
      <check>false</check>
    </configuration>
    <executions>
      <execution>
        <id>pre-test</id>
        <goals>
          <goal>prepare-agent</goal>
        </goals>
      </execution>
      <execution>
        <id>post-test</id>
        <goals>
          <goal>report</goal>
        </goals>
        <phase>test</phase>
      </execution>
    </executions>
  </plugin>

更新

显然，这与我提供的includes模式有关。当我删除“包含”时，它确实显示了覆盖范围，但超出了我的需要。我仍在努力找出合适的包含模式

Answer 1

你也需要把它挂到surefire上，换成

 <build>
        <plugins>
          <plugin>
            <groupId>org.jacoco</groupId>
            <artifactId>jacoco-maven-plugin</artifactId>
            <version>0.6.3.201306030806</version>
            <executions>
              <!  pre-unit-test execution helps setting up some maven property,
                which will be used later by JaCoCo  >
              <execution>
                <id>pre-unit-test</id>
                <goals>
                  <goal>prepare-agent</goal>
                </goals>
                <configuration>
                  <destFile>${project.build.directory}/coverage-reports/jacoco-ut.exec</destFile>
                  <!  passing property which will contains settings for JaCoCo agent.
                    If not specified, then "argLine" would be used for "jar" packaging  >
                  <propertyName>surefireArgLine</propertyName>
                </configuration>
              </execution>
              <!  report phase setup  >
              <execution>
                <id>post-unit-test</id>
                <phase>test</phase>
                <goals>
                  <goal>report</goal>
                </goals>
                <configuration>
                  <!  output file with report data.  >
                  <dataFile>${project.build.directory}/coverage-reports/jacoco-ut.exec</dataFile>
                  <!  output directory for the reports.  >
                  <outputDirectory>${project.reporting.outputDirectory}/jacoco-ut</outputDirectory>
                </configuration>
              </execution>
            </executions>
          </plugin>

          <plugin>
            <artifactId>maven-surefire-plugin</artifactId>
            <version>2.14</version>
            <executions>
              <execution>
                <id>default-test</id>
                <phase>test</phase>
                <goals>
                  <goal>test</goal>
                </goals>
                <configuration>
                  <argLine>${surefireArgLine}</argLine>
                </configuration>
              </execution>
            </executions>
            <configuration>
              <argLine>-XX:MaxPermSize=512m</argLine>
            </configuration>
          </plugin>
        </plugins>
  </build>