我正在尝试从命令行配置 JaCoCo maven 插件，而不是使用pom.xml.prepare-agent到目前为止我已经成功地使用命令执行：
mvn -X -Djacoco.destFile=./coverage/jacoco.exec clean org.jacoco:jacoco-maven-plugin:prepare-agent install
与输出：
[DEBUG] Configuring mojo org.jacoco:jacoco-maven-plugin:0.7.6.201602180812:prepare-agent from plugin realm ClassRealm[plugin>org.jacoco:jacoco-maven-plugin:0.7.6.201602180812, parent: sun.misc.Launcher$AppClassLoader@70dea4e]
[DEBUG] Configuring mojo 'org.jacoco:jacoco-maven-plugin:0.7.6.201602180812:prepare-agent' with basic configurator -->
[DEBUG] (f) destFile = /src/coverage/jacoco.exec
...
它创建./coverage/jacoco.exec文件，现在我正在尝试运行report阶段，但我无法设置该阶段的属性。我正在运行命令：
mvn -X -Djacoco.dataFile=./coverage/jacoco.exec -Djacoco.outputDirectory=./jacoco_ut org.jacoco:jacoco-maven-plugin:report
或者
mvn -X -DdataFile=./coverage/jacoco.exec -DoutputDirectory=./jacoco_ut org.jacoco:jacoco-maven-plugin:report
如雅可可：报告没有user property如jacoco:准备代理。
我有如下输出：
[DEBUG] Configuring mojo 'org.jacoco:jacoco-maven-plugin:0.7.6.201602180812:report' with basic configurator -->
[DEBUG] (f) dataFile = /src/target/jacoco.exec
[DEBUG] (f) outputDirectory = /src/target/site/jacoco
[DEBUG] (f) outputEncoding = UTF-8
[DEBUG] (f) project = MavenProject: project:3.2.0-SNAPSHOT @ /src/pom.xml
[DEBUG] (f) skip = false
[DEBUG] (f) sourceEncoding = UTF-8
[DEBUG] -- end configuration --
与默认值。