SpringMVC 处理模型数据:
1 controller接收pojo:
<form action="save" method="get"> <label for="">用户名:<input type="text" name="username" /></label> <label for="">密码:<input type="password" name="password" /></label> <label for="">年龄:<input type="text" name="age" /></label> <label for="">邮箱:<input type="text" name="email" /></label> <label for="">省份:<input type="text" name="address.province" /> </label> <label for="">城市:<input type="text" name="address.city" /></label> <button>保存</button> </form>
@RequestMapping("/save") public String save(User user) { System.out.println(user); return "success"; }
2 controller接收model:
@RequestMapping("/edit2")
public String edit1(Model model) {
User user = new User();
user.setUsername("harry");
user.setPassword("123");
user.setAge(17);
user.setEmail("11@qq.com");
Address address = new Address();
address.setProvince("horwards");
address.setCity("potter");
user.setAddress(address);
model.addAttribute("user", user);
return "user/form";
}
3 controller返回modleAndView:
<form action="save" method="get"> <label for="">用户名:<input type="text" name="username" value="${user.username}"/></label> <label for="">密码:<input type="password" name="password" value="${user.password}"/></label> <label for="">年龄:<input type="text" name="age" value="${user.age}"/></label> <label for="">邮箱:<input type="text" name="email" value="${user.email}"/></label> <label for="">省份:<input type="text" name="address.province" value="${user.address.province}"/></label> <label for="">城市:<input type="text" name="address.city" value="${user.address.city}"/></label> <button>保存</button> </form>
@RequestMapping("/edit") public ModelAndView edit() { User user = new User(); user.setUsername("draco"); user.setPassword("123"); user.setAge(17); user.setEmail("11@qq.com"); Address address = new Address(); address.setProvince("horwards"); address.setCity("malfoy"); user.setAddress(address); ModelAndView mv = new ModelAndView(); mv.setViewName("user/form"); mv.addObject("user", user); return mv; }