Spring MVC初步使用
Spring MVC 几种传参方式
本次沿用上次的工程,在controller中添加几个方法
创建User模型
public class User {
private String username;
private String password;
public String getUsername() {
return username;
}
public void setUsername(String username) {
this.username = username;
}
public String getPassword() {
return password;
}
public void setPassword(String password) {
this.password = password;
}
}
修改IndexController
- 直接把表单参数写入Controller的相应方法中
@RequestMapping("/addUser1")
public String addUser1(String username, String password) {
System.out.println("username is:" + username);
System.out.println("password is:" + password);
return "index";
}
- 通过user bean 来接收
@RequestMapping("/addUser2")
public String addUser3(UserModel user) {
System.out.println("username is:"+user.getUsername());
System.out.println("password is:"+user.getPassword());
return "index";
}
- 通过HttpServletRequest来接收
@RequestMapping("/addUser3")
public String addUser2(HttpServletRequest request) {
String username = request.getParameter("username");
String password = request.getParameter("password");
System.out.println("username is:" + username);
System.out.println("password is:" + password);
return "index";
}
- 通过PathVariable接收
@RequestMapping(value = "/addUser4/{username}/{password}", method = RequestMethod.GET)
public String addUser4(@PathVariable String username, @PathVariable String password) {
System.out.println("username is:" + username);
System.out.println("password is:" + password);
return "index";
}
- 用注解@RequestParam绑定请求参数
@RequestMapping(value = "/addUser5", method = RequestMethod.GET)
public String addUser6(@RequestParam("username") String username, @RequestParam("password") String password) {
System.out.println("username is:" + username);
System.out.println("password is:" + password);
return "index";
}
测试接口
测试使用的是火狐的HttpRequest插件,使用类似的工具也可以,或者写一个HTML表单,这里不在多解释
可以看到请求成功,并成功跳转到首页
服务器输出了请求
**粗体** _斜体_ [链接](http://example.com) `代码` - 列表 > 引用
。你还可以使用@
来通知其他用户。