wordpress网站基础知识,电子商务网站建设与维护方法分析不包括,织梦 网站根目录,如何建立一个网站 供客户选图有点难理解。 修饰方法是表示在该控制器的所有目标方法执行前都执行该modelattribute注解的方法。 修饰参数是表示什么#xff1f;修饰参数时modelattributes(valuexxxx) User user 中的value值需要和modelattribute修改的方法加入的键的值一致。 Controller Cod…有点难理解。 修饰方法是表示在该控制器的所有目标方法执行前都执行该modelattribute注解的方法。 修饰参数是表示什么修饰参数时modelattributes(valuexxxx) User user 中的value值需要和modelattribute修改的方法加入的键的值一致。 Controller Code: package com.tiekui.springmvc.handlers;import java.util.Map;import org.springframework.stereotype.Controller;
import org.springframework.web.bind.annotation.ModelAttribute;
import org.springframework.web.bind.annotation.RequestMapping;
import org.springframework.web.bind.annotation.RequestParam;import com.tiekui.springmvc.pojo.Address;
import com.tiekui.springmvc.pojo.User;
import com.tiekui.springmvc.pojo.UserNew;Controller
public class ModelAttributes {RequestMapping(testModelAttribute)public String targetMethod(UserNew user){System.out.println(Target method user);return afterModelAttributes;}ModelAttributepublic void getuser(RequestParam(valueid) String id,MapString, UserNew map) {if ((id ! null)) {UserNew user new UserNew(tiekui,1234,zhoutiekuihuawei.com,30,1, new Address(guangzhou, zhenzhen));System.out.println(Get an object user);map.put(userNew, user);}}
} Response View: % page languagejava contentTypetext/html; charsetISO-8859-1pageEncodingISO-8859-1%
!DOCTYPE html PUBLIC -//W3C//DTD HTML 4.01 Transitional//EN http://www.w3.org/TR/html4/loose.dtd
html
head
meta http-equivContent-Type contenttext/html; charsetISO-8859-1
titleInsert title here/title
/head
bodyuserAge: ${requestScope.userNew.age}/body
/html View: form actiontestModelAttributebrpassword : input typetext nameusername valuetiekuibrpassword : input typepassword namepassword value1234bremail : input typetext nameemail valuezhoutiekuihuawei.combrage : input typetext nameage value18brinput typehidden nameid value1brAddress Province: input typetext nameaddress.province valueguangzhoubrAddress City: input typetext nameaddress.city valueshenzhenbrinput typesubmit valueTest ModelAttributes/form POJO userNew: package com.tiekui.springmvc.pojo;public class UserNew {private String username;private String password;private String email;private int age;private Integer id;public UserNew(String username, String password, String email, int age, Integer id, Address address) {super();this.username username;this.password password;this.email email;this.age age;this.id id;this.address address;}public Integer getId() {return id;}public void setId(Integer id) {this.id id;}private Address address;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;}public String getEmail() {return email;}public void setEmail(String email) {this.email email;}public int getAge() {return age;}public void setAge(int age) {this.age age;}public Address getAddress() {return address;}public void setAddress(Address address) {this.address address;}Overridepublic String toString() {return UserNew [username username , password password , email email , age age , id id , address address ];}} View Code POJO Address: package com.tiekui.springmvc.pojo;public class Address {private String province;private String city;public Address() {super();}public Address(String province, String city) {super();this.province province;this.city city;}Overridepublic String toString() {return Address [province province , city city ];}public String getProvince() {return province;}public void setProvince(String province) {this.province province;}public String getCity() {return city;}public void setCity(String city) {this.city city;}
} 转载于:https://www.cnblogs.com/zhoutiekui/p/6351254.html
