java - 使用 JavaParser 解析变量的正确方法是什么？

Question

使用 JavaParser 我可以获得我的方法和字段的列表:

//List of all methods
System.out.println("Methods: " + this.toString());
List<TypeDeclaration> types = n.getTypes();
for (TypeDeclaration type : types)
{
    List<BodyDeclaration> members = type.getMembers();
    for (BodyDeclaration member : members)
    {
        if (member instanceof MethodDeclaration)
        {
            MethodDeclaration method = (MethodDeclaration) member;
            System.out.println("Methods: " + method.getName());
        }
    }
}

//List all field variables.
System.out.println("Field Variables: " + this.toString());
List<TypeDeclaration> f_vars = n.getTypes();
for (TypeDeclaration type : f_vars)
{
    List<BodyDeclaration> members = type.getMembers();
    for (BodyDeclaration member : members)
    {
        if (member instanceof FieldDeclaration)
        {
            FieldDeclaration myType = (FieldDeclaration) member;
            List <VariableDeclarator> myFields = myType.getVariables();
            System.out.println("Fields: " + myType.getType() + ":" + myFields.toString());
        }
    }
}

但我不知道如何获取我的变量列表。我只是想要一个来自 java 源的所有变量的列表，而不考虑范围。

Answer 1

解决方案是创建一个扩展 VoidVisitorAdapter 并覆盖 visit() 方法的访问者类。代码如下:

@Override
public void visit(VariableDeclarationExpr n, Object arg)
{      
    List <VariableDeclarator> myVars = n.getVars();
        for (VariableDeclarator vars: myVars){
            System.out.println("Variable Name: "+vars.getId().getName());
            }
}