JavaParser:检测FieldDeclaration是否为接口类型

import com.github.javaparser.JavaParser;
import com.github.javaparser.ast.CompilationUnit;
import com.github.javaparser.ast.body.FieldDeclaration;
import com.github.javaparser.ast.type.ClassOrInterfaceType;
import com.github.javaparser.ast.visitor.VoidVisitorAdapter;

import java.io.File;
import java.io.FileInputStream;
import java.io.IOException;

public class FieldDeclarationVisitor extends VoidVisitorAdapter<Void> {
    @Override
    public void visit(FieldDeclaration fieldDeclaration, Void arg) {
        super.visit(fieldDeclaration, arg);
        
        // 获取字段的类型
        ClassOrInterfaceType fieldType = fieldDeclaration.getElementType().asClassOrInterfaceType();
        
        // 检查字段类型是否为接口类型
        if (fieldType.isInterfaceType()) {
            System.out.println("FieldDeclaration类型为接口类型：" + fieldType.getName());
        }
    }

    public static void main(String[] args) throws IOException {
        // 读取Java代码文件
        FileInputStream fileInputStream = new FileInputStream(new File("YourJavaFile.java"));
        
        // 解析Java代码文件为AST
        CompilationUnit compilationUnit = JavaParser.parse(fileInputStream);
        
        // 创建FieldDeclarationVisitor实例
        FieldDeclarationVisitor visitor = new FieldDeclarationVisitor();
        
        // 遍历AST并应用Visitor
        visitor.visit(compilationUnit, null);
    }
}