标签：vat prope action 需要 输入 相同 map new 接受
一、jsp中：
<form action="SpringMVCController/testparam" method="get"> name:<input name="uname" type="text"><br/> age: <input name="uage" type="text"><br/> <input type="submit" value="查"> </form>
controller中：
@RequestMapping(value="testparam")
public String welcome9(@RequestParam("uname") String name,@RequestParam(value="uage",required=false,defaultValue="23") Integer age){
System.out.println(name);
System.out.println(age);
return "success";
}
required=false意思是该值可以不输入。
二、接受对象（Student student）：
原始servlet接受jsp中的数据，然后Student student = new Student();
student.setId=...太麻烦。
创建实体类Student和Address。
Student.java:
package org.ruangong.entity;
public class Student {
private int id;
private String name;
private int age;
private Address address;
public int getId() {
return id;
}
public void setId(int id) {
this.id = id;
}
public String getName() {
return name;
}
public void setName(String name) {
this.name = name;
}
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;
}
}
Address.java:
package org.ruangong.entity;
public class Address {
private String homeAddress;
private String schoolAddress;
public String getHomeAddress() {
return homeAddress;
}
public void setHomeAddress(String homeAddress) {
this.homeAddress = homeAddress;
}
public String getSchoolAddress() {
return schoolAddress;
}
public void setSchoolAddress(String schoolAddress) {
this.schoolAddress = schoolAddress;
}
}
controller.java:
@RequestMapping(value="testObjectProperties")
public String testObjectProperties(Student student){
System.out.println(student.getId()+","+student.getName()+","+student.getAge()+","+student.getAddress().getHomeAddress()+","+student.getAddress().getSchoolAddress());
return "success";
}
jsp中：
<form action="SpringMVCController/testObjectProperties" method="get"> id:<input name="id" type="text"><br/> name:<input name="name" type="text"><br/> age: <input name="age" type="text"><br/> homeAddress: <input name="address.homeAddress" type="text"><br/> schoolAddress: <input name="address.schoolAddress" type="text"><br/> <input type="submit" value="确定"> </form>
允许级联属性。input标签中的name值必须跟实体类属性值相同。
三、在controller中任然可以使用原始servlet中的东西：
只需要：
@RequestMapping(value="testServletAPI")
public String testServletAPI(HttpServletRequest request){
String name = request.getParameter("name");
System.out.println(name);
return "success";
}
标签：vat prope action 需要 输入 相同 map new 接受
原文地址：https://www.cnblogs.com/jccjcc/p/14043524.html
