JavaParser
从java源码src分析出抽象语法树ast,方便做项目下所有类的分析,生成的语法书可以方便的查找包名,类名,导入名,方法名等等
下面是一个入门demo,以了解如何方便使用
//只有parser
<dependency>
<groupId>com.github.javaparser</groupId>
<artifactId>javaparser-core</artifactId>
<version>3.6.5</version>
</dependency>
//或者
//symbolsolver 和 parser
<dependency>
<groupId>com.github.javaparser</groupId>
<artifactId>javaparser-symbol-solver-core</artifactId>
<version>3.6.5</version>
</dependency>
import com.github.javaparser.JavaParser;
import com.github.javaparser.ast.CompilationUnit;
import com.github.javaparser.ast.PackageDeclaration;
import com.github.javaparser.ast.body.ClassOrInterfaceDeclaration;
import com.github.javaparser.ast.body.MethodDeclaration;
import com.github.javaparser.ast.visitor.VoidVisitorAdapter;
import java.io.FileInputStream;
public class Test {
public static void main(String[] args) throws Exception{
FileInputStream in = new FileInputStream("/proj/javaparse/src/main/java/modd/dd/dda/Course.java");
// parse the file
CompilationUnit cu = JavaParser.parse(in);
// prints the resulting compilation unit to default system output
// System.out.println(cu.toString());
cu.accept(new MethodVisitor(), null);
}
private static class MethodVisitor extends VoidVisitorAdapter<Void> {
@Override
public void visit(MethodDeclaration n, Void arg) {
/* here you can access the attributes of the method.
this method will be called for all methods in this
CompilationUnit, including inner class methods */
System.out.println("method:"+n.getName());
super.visit(n, arg);
}
@Override
public void visit(ClassOrInterfaceDeclaration n, Void arg) {
System.out.println("class:"+n.getName());
System.out.println("extends:"+n.getExtendedTypes());
System.out.println("implements:"+n.getImplementedTypes());
super.visit(n, arg);
}
@Override
public void visit(PackageDeclaration n, Void arg) {
System.out.println("package:"+n.getName());
super.visit(n, arg);
}
}
}