ongl(原始类型和包装类型)
原始类型和包装类型
//首先创建两个实体类 user 和 address user中包含address
package cn.jbit.bean;
public class User { //用户类
private String name; //姓名
private int age; //年龄
private Address address;//住址
public Address getAddress() {
return address;
}
public void setAddress(Address address) {
this.address = address;
}
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;
}
}
package cn.jbit.bean;
public class Address { // 家庭地址
private String country; // 国家
private String city; // 城市
private String street; // 街道
public String getCountry() {
return country;
}
public void setCountry(String country) {
this.country = country;
}
public String getCity() {
return city;
}
public void setCity(String city) {
this.city = city;
}
public String getStreet() {
return street;
}
public void setStreet(String street) {
this.street = street;
}
}
2.创建出一个action先创建出两个成员变量 然后在核心方法中实例化成员变量。
package cn.jbit.action;
import com.opensymphony.xwork2.ActionSupport;
import cn.jbit.bean.*;
public class ShowOriginalAndJavaBeanAction extends ActionSupport {
private User user;
private String message;
public String execute(){
setUser(new User());
getUser().setName("jbit");
getUser().setAge(23);
Address address=new Address();
address.setCountry("中国");
address.setCity("北京");
address.setStreet("长安街");
getUser().setAddress(address);
setMessage("展示原始类型和JavaBean");
return SUCCESS;
}
public User getUser() {
return user;
}
public void setUser(User user) {
this.user = user;
}
public String getMessage() {
return message;
}
public void setMessage(String message) {
this.message = message;
}
}
核心配置：struts.xml
<?xml version="1.0" encoding="UTF-8" ?> <!DOCTYPE struts PUBLIC "-//Apache Software Foundation//DTD Struts Configuration 2.0//EN" "http://struts.apache.org/dtds/struts-2.0.dtd"> <struts> <!-- <constant name="struts.custom.i18n.resources" value="message"/> --> <package name="default" extends="struts-default"> <action name="showOriginalAndJavaBeanAction" class="cn.jbit.action.ShowOriginalAndJavaBeanAction"> <result>result.jsp</result> </action> </package> </struts>
index.jsp
<body>
信息：<s:property value="message" default="展示数据" /><br/>
姓名：<s:property value="user.name" /><br/>
年龄：<s:property value="user.age" /><br/>
国家：<s:property value="user.address.country" />
</body>
在搜索栏输入localhost:8080/Struts2_OGNL/showOriginalAndJavaBeanAction访问
