SpringMVC中POJO对象和Servlet API作为入参

使用POJO对象绑定请求参数值

• Spring MVC 会按请求参数名和POJO属性名进行自动匹配，自动为该对象填充属性值。支持级联属性。如：dept.deptId、dept.address.tel 等

• 例子：

Controller层代码

@RequestMapping(value = "testPOJO",method = RequestMethod.POST)
public String testPOJO(User user){
    System.out.println(user.toString());
    return TEST;
}

jsp页面代码

<form action="testPOJO" method="post">
    <input type="text" name="username" placeholder="用户名">
    <br>
    <input type="password" name="password" placeholder="密码">
    <br>
    <input type="text" name="address.province" placeholder="省份">
    <br>
    <input type="text" name="address.city" placeholder="城市">
    <br>
    <input type="submit" value="TestPOJO">
</form>

使用Servlet API作为入参

• 例子:

  	/**
  	 * 可以使用 Serlvet 原生的 API 作为目标方法的参数 具体支持以下类型
  	 * 
  	 * HttpServletRequest 
  	 * HttpServletResponse 
  	 * HttpSession
  	 * java.security.Principal 
  	 * Locale InputStream 
  	 * OutputStream 
  	 * Reader 
  	 * Writer
  	 * @throws IOException 
  	 */
  	@RequestMapping("/testServletAPI")
  	public void testServletAPI(HttpServletRequest request,
  			HttpServletResponse response, Writer out) throws IOException {
  		System.out.println("testServletAPI, " + request + ", " + response);
  		out.write("hello springmvc");
  //		return SUCCESS;
  	}