Java servlet不向jquery ajax返回JSON对象

response.setContentType("application/json");
response.setCharacterEncoding("UTF-8");

String jsonResponse = "{\"status\":\"success\", \"data\":{\"message\":\"Hello, World!\"}}";
response.getWriter().write(jsonResponse);

$.ajax({
    url: 'yourServletURL',
    type: 'GET', // 或者 'POST'
    dataType: 'json', // 预期服务器返回的数据类型
    success: function(data) {
        console.log(data); // 这里应该能够访问到 JSON 对象
    },
    error: function(jqXHR, textStatus, errorThrown) {
        console.error('Error:', textStatus, errorThrown);
    }
});

import java.io.IOException;
import javax.servlet.ServletException;
import javax.servlet.annotation.WebServlet;
import javax.servlet.http.HttpServlet;
import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;

@WebServlet("/example")
public class ExampleServlet extends HttpServlet {
    protected void doGet(HttpServletRequest request, HttpServletResponse response) throws ServletException, IOException {
        response.setContentType("application/json");
        response.setCharacterEncoding("UTF-8");

        String jsonResponse = "{\"status\":\"success\", \"data\":{\"message\":\"Hello, World!\"}}";
        response.getWriter().write(jsonResponse);
    }
}

$.ajax({
    url: '/example',
    type: 'GET',
    dataType: 'json',
    success: function(data) {
        console.log(data.message); // 应该输出 "Hello, World!"
    },
    error: function(jqXHR, textStatus, errorThrown) {
        console.error('AJAX Error:', textStatus, errorThrown);
    }
});