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                下面演示后端獲取前端的數據,然后后端將數據傳遞到前端。 <br/> 步驟如下: **1. controller層** ```java @Controller @RequestMapping("/student") public class StudentController { /** * 注解 @RequestMapping("/get/name") 的作用是映射請求地址 * 注解 @RequestParam("name") 的作用是獲取前端的數據 */ @RequestMapping("/get/name") public ModelAndView getName(@RequestParam("name") String name, ModelAndView model) { System.out.println("后端收到數據->name:" + name); //添加要傳遞到前端的數據 model.addObject("name", name); //添加要跳轉的視圖名稱 model.setViewName("student"); return model; } } ``` **2. 前端界面`webapp/WEB-INF/views/student.jsp`** ```html <%@ page contentType="text/html;charset=UTF-8" language="java" %> <html> <head> <title>STUDENT</title> </head> <body> <!-- 獲取后端傳遞過來的name數據 --> <h1>${ name }</h1> </body> </html> ``` **3. 訪問 http://localhost:8080/mvc/student/get/name?name=%E5%BC%A0%E4%B8%89 前后端將得到如下結果** 后端輸出: ``` 后端收到數據->name:張三 ``` 前端界面: ![](https://img.kancloud.cn/2f/2a/2f2a04d3303294f584c14ff75854f23d_1517x258.jpg)
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