Struts2--类型转换

struts.xml:

<?xml version="1.0" encoding="UTF-8" ?><!DOCTYPE struts PUBLIC"-//Apache Software Foundation//DTD Struts Configuration 2.1//EN""http://struts.apache.org/dtds/struts-2.1.dtd"><struts><constant name="struts.devMode" value="true"></constant><package name="test" namespace="/" extends="struts-default"><action name="test" class="com.bjsxt.action.TestAction"><result>/test.jsp</result></action></package></struts>

TestAction.java:

package com.bjsxt.action;import java.awt.Point;
import java.util.Date;
import java.util.List;
import java.util.Map;
import java.util.Set;import com.opensymphony.xwork2.ActionSupport;public class TestAction extends ActionSupport {private String name;private int age;private Date d;Set<String> interests;Map<String, String> users;Point p;List<Point> ps;Map<String, Point> points;@Overridepublic String execute() throws Exception {return super.execute();}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 Date getD() {return d;}public void setD(Date d) {this.d = d;}public Set<String> getInterests() {return interests;}public void setInterests(Set<String> interests) {this.interests = interests;}public Map<String, String> getUsers() {return users;}public void setUsers(Map<String, String> users) {this.users = users;}public Point getP() {return p;}public void setP(Point p) {this.p = p;}public List<Point> getPs() {return ps;}public void setPs(List<Point> ps) {this.ps = ps;}public Map<String, Point> getPoints() {return points;}public void setPoints(Map<String, Point> points) {this.points = points;}}

全局注册转换 src下新建属性文件: /xwork-conversion.properties

java.awt.Point=com.bjsxt.converter.MyPointConverter

如果局部: 放在action包下: /TestAction-conversion.properties:

p=com.bjsxt.converter.MyPointConverter

转换java:

package com.bjsxt.converter;import java.awt.Point;
import java.util.Map;import org.apache.struts2.util.StrutsTypeConverter;public class MyPointConverter extends StrutsTypeConverter{@Overridepublic Object convertFromString(Map context, String[] values, Class toClass) {Point p = new Point();String[] strs = (String[])values;String[] xy = strs[0].split(",");p.x = Integer.parseInt(xy[0]);p.y = Integer.parseInt(xy[1]);return p;      }@Overridepublic String convertToString(Map context, Object o) {// TODO Auto-generated method stubreturn o.toString();}}

如下访问:

http://localhost:8080/struts2_3700_type_conversion/test?name=a&age=20
http://localhost:8080/struts2_3700_type_conversion/test?&d=1988-08-08 12:39:56
http://localhost:8080/struts2_3700_type_conversion/test?&interests=math&interests=english
http://localhost:8080/struts2_3700_type_conversion/test?&users['a']=usera&users['b']=userb
http://localhost:8080/struts2_3700_type_conversion/test?p=2,3

test.jsp:

<%@ page language="java" import="java.util.*" pageEncoding="UTF-8"%>
<%
String path = request.getContextPath();
String basePath = request.getScheme()+"://"+request.getServerName()+":"+request.getServerPort()+path+"/";
%>
<%@taglib uri="/struts-tags" prefix="s" %>
<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN">
<html><head><base href="<%=basePath%>"><title>Type Conversion</title><meta http-equiv="pragma" content="no-cache"><meta http-equiv="cache-control" content="no-cache"><meta http-equiv="expires" content="0">    <meta http-equiv="keywords" content="keyword1,keyword2,keyword3"><meta http-equiv="description" content="This is my page"><!--<link rel="stylesheet" type="text/css" href="styles.css">--></head><body>name:<s:property value="name"/><br/>age:<s:property value="age"/><br/>date:<s:property value="d"/><br/><s:date name="d" format="yyyy/MM/dd HH:mm:ss"/><br/><s:property value="interests"/><br/><s:property value="users"/><br/><s:property value="p"/><br/><s:property value="ps"/><br/>points:<s:property value="points"/><br/></body>
</html>

测试结果:

http://localhost:8080/struts2_3700_type_conversion/test?d=1988-08-08 12:39:56http://localhost:8080/struts2_3700_type_conversion/test?interests=math&interests=english
[math, english]http://localhost:8080/struts2_3700_type_conversion/test?name=a&age=20
结果:
name:a
age:20http://localhost:8080/struts2_3700_type_conversion/test?d=1988-08-08 12:39:56
结果: 1988/08/08 12:39:56http://localhost:8080/struts2_3700_type_conversion/test?interests=math&interests=english
结果: [math, english]http://localhost:8080/struts2_3700_type_conversion/test?users['a']=usera&users['b']=userb
结果: {b=userb, a=usera}http://localhost:8080/struts2_3700_type_conversion/test?p=2,3
java.awt.Point[x=2,y=3]http://localhost:8080/struts2_3700_type_conversion/test?ps=2,3&ps=9,0
结果:[java.awt.Point[x=2,y=3], java.awt.Point[x=9,y=0]]http://localhost:8080/struts2_3700_type_conversion/test?points['a']=8,9&points['b']=1,0
结果: points:{b=java.awt.Point[x=1,y=0], a=java.awt.Point[x=8,y=9]}

转载于:https://www.cnblogs.com/wujixing/p/5395887.html

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