sonarqube 扫描使用Junit做单元测试的代码覆盖率为0?

代码用Junit做单元测试后提交至svn,checkout到本地进行静态代码检查,视图中覆盖率显示为0.

project.properties文件配置如下:

Required metadata

sonar.projectKey=EmailTestssh
sonar.projectName=EmailTestssh
sonar.projectVersion=V1.0

Comma-separated paths to directories with sources (required)

sonar.sources=src
#sonar.exclusions=WebRoot\js\echarts.js
sonar.java.binaries=target/classes

Language

#sonar.language=java

Encoding of the source files

sonar.sourceEncoding=UTF-8