<project name="My Project" default="all" basedir="." xmlns:sonar="antlib:org.sonar.ant">
...
  
<!-- Define the SonarQube global properties (the most usual way is to pass these properties via the command line) -->
<property name="sonar.host.url" value="http://localhost:9000" />
 
...
  
<!-- Define the SonarQube project properties -->
<property name="sonar.projectKey" value="org.sonarqube:sonarqube-scanner-ant" />
<property name="sonar.projectName" value="Example of SonarQube Scanner for Ant Usage" />
<property name="sonar.projectVersion" value="1.0" />
<property name="sonar.sources" value="src" />
<property name="sonar.java.binaries" value="build" />
<property name="sonar.java.libraries" value="lib/*.jar" />
...
 
<!-- Define SonarQube Scanner for Ant Target -->
<target name="sonar">
    <taskdef uri="antlib:org.sonar.ant" resource="org/sonar/ant/antlib.xml">
        <!-- Update the following line, or put the "sonarqube-ant-task-*.jar" file in your "$HOME/.ant/lib" folder -->
        <classpath path="path/to/sonar/ant/task/lib/sonarqube-ant-task-*.jar" />
    </taskdef>
 
    <!-- Execute SonarQube Scanner for Ant Analysis -->
    <sonar:sonar />
</target>
...

ant sonar

... 
<!-- Set modules IDs -->
<property name="sonar.modules" value="module-one,module-two"/>
   
<!-- For modules, properties are inherited from the parent. They can be overridden as shown below: -->
<property name="module-one.sonar.projectName" value="Module One" />
<property name="module-one.sonar.sources" value="sources/java" />
<property name="module-one.sonar.binaries" value="target" />
<!-- Default module base directory is <curent_directory>/<module_ID>. It can be overridden if necessary -->
<property name="module-one.sonar.projectBaseDir" value="Module 1" /> 
...

ant sonar -v