java-javaParse解析类的方法名称,行数等

发布时间 2023-08-22 15:39:36作者: 陈橙橙橙子
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);
        }
    }
}
//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>