首页 > 代码库 > struts开发<struts中的参数传递.三>
struts开发<struts中的参数传递.三>
不说废话，直接上干货
1.通过set和get传递参数
增加username 和password两个属性并增加set和get方法
<span style="font-size:18px;">package fzl.user.struts.demo;
import com.opensymphony.xwork2.ActionSupport;
public class UserAction extends ActionSupport {
<span style="white-space:pre"> </span>private String username;
<span style="white-space:pre"> </span>private String password;
public String getUsername() {
<span style="white-space:pre"> </span>return username;
<span style="white-space:pre"> </span>}
<span style="white-space:pre"> </span>public void setUsername(String username) {
<span style="white-space:pre"> </span>this.username = username;
<span style="white-space:pre"> </span>}
<span style="white-space:pre"> </span>public String getPassword() {
<span style="white-space:pre"> </span>return password;
<span style="white-space:pre"> </span>}
<span style="white-space:pre"> </span>public void setPassword(String password) {
<span style="white-space:pre"> </span>this.password = password;
<span style="white-space:pre"> </span>}
public String list(){
<span style="white-space:pre"> </span>
<span style="white-space:pre"> </span>System.out.println("list");
<span style="white-space:pre"> </span>return "success";
}
public String input(){
<span style="white-space:pre"> </span>System.out.println("input");
<span style="white-space:pre"> </span>return "success";
}<span style="white-space:pre"> </span>
public String add(){
<span style="white-space:pre"> </span>
<span style="white-space:pre"> </span>System.out.println("add");
return "success";
}}
</span>在list使用EL表达式和struts标签调用
<pre name="code" class="html"><span style="font-size:18px;"><%@ page language="java" contentType="text/html; charset=UTF-8"
pageEncoding="UTF-8" %>
<%@ taglib prefix="s" uri="/struts-tags" %>
<!DOCTYPE html PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN" "http://www.w3.org/TR/html4/loose.dtd">
<html>
<head>
<meta http-equiv="Content-Type" content="text/html; charset=UTF-8">
<title>Insert title here</title>
</head>
<body>
通过EL访问
${username }-->${password }
<h1>------------------list -----------------</h1>
通过struts标签访问
<s:property value=http://www.mamicode.com/"username"/>-->
第二种方法，通过Actioncontext完成
<span style="font-size:18px;">package fzl.user.struts.demo;
import com.opensymphony.xwork2.ActionContext;
import com.opensymphony.xwork2.ActionSupport;
public class UserAction extends ActionSupport {
private String username;
private String password;
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 list(){
ActionContext.getContext().put("username", "flyou");
ActionContext.getContext().put("password", "553274238");
System.out.println("list");
return "success";
}
public String input(){
System.out.println("input");
return "success";
}
public String add(){
System.out.println("add");
return "success";
}}</span>list文件不用修改
第三种方法，通过servletAPI传值
<span style="font-size:18px;">package fzl.user.struts.demo;
import org.apache.struts2.ServletActionContext;
import com.opensymphony.xwork2.ActionContext;
import com.opensymphony.xwork2.ActionSupport;
public class UserAction extends ActionSupport {
private String username;
private String password;
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 list(){
//ActionContext.getContext().put("username", "flyou");
//ActionContext.getContext().put("password", "553274238");
ServletActionContext.getRequest().setAttribute("username", "flyou");
ServletActionContext.getRequest().setAttribute("password", "553274238");
System.out.println("list");
return "success";
}
public String input(){
System.out.println("input");
return "success";
}
public String add(){
System.out.println("add");
return "success";
}}</span>
list文件<span style="font-size:18px;"><%@ page language="java" contentType="text/html; charset=UTF-8"
pageEncoding="UTF-8" %>
<%@ taglib prefix="s" uri="/struts-tags" %>
<!DOCTYPE html PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN" "http://www.w3.org/TR/html4/loose.dtd">
<html>
<head>
<meta http-equiv="Content-Type" content="text/html; charset=UTF-8">
<title>Insert title here</title>
</head>
<body>
通过EL访问
${username }-->${password }
<h1>------------------list -----------------</h1>
通过struts标签访问
<span style="background-color: rgb(204, 0, 0);"><s:property value=http://www.mamicode.com/"#request.username"/>-->>
获取的三种方式
1.通过seter和geter方法接受并传递
2.通过ActionContext.getContext().put("username", "flyou");传递参数
3.通过 ServletActionContext.getRequest.setAttribute("","")传值
struts开发<struts中的参数传递.三>
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