result 相关

1.dispatcher

2.redirect

3.chain

4.redirectAction

5.freemarker

6.httpheader

7.stream

8.velocity

9.xslt

10.plaintext

11.tiles

常用的是前四种

<package name="resultType" namespace="/r" extends="struts-default">

        <action name="r1">
<!-- result 不指定type默认为dispatcher 运用服务器跳转 forword到jsp压面 显示action地址 -->
<result type="dispatcher">/r1.jsp</result>
</action> <action name="r2">
<!-- 客户端跳转 显示jsp地址 -->
<result type="redirect">/r2.jsp</result>
</action> <!-- 同r1 forword到另外一个action -->
<action name="r3">
<result type="chain">r1</result>
</action> <!-- 同r2 -->
<action name="r4">
<result type="redirectAction">r2</result>
</action>
</package> <package name="user2" namespace="/user2" extends="struts-default">
<!-- 其他包可以用extends继承 -->
<global-results>
<result name="mainpage">/main.jsp</result>
</global-results> <action name="user2" class="com.ouc.wkp.action.UserAction2">
<result name="success">/r1.jsp</result>
<result name="error">/r2.jsp</result>
</action>
</package> <package name="user3" namespace="/user3" extends="struts-default">
<action name="user3" class="com.ouc.wkp.action.UserAction3">
<result>${r}</result>
</action>
</package>

struts.xml

package com.ouc.wkp.action;

import com.opensymphony.xwork2.ActionSupport;

public class UserAction2 extends ActionSupport {
private int type; public int getType() {
return type;
} public void setType(int type) {
this.type = type;
} @Override
public String execute() throws Exception {
if(type==1){
return "success";
}else if(type==2){
return "error";
}else{
return "mainpage";
}
}
}

UserAction2

动态结果集,在action中保存一个属性,存储具体的结果location
package com.ouc.wkp.action;

import com.opensymphony.xwork2.ActionSupport;

public class UserAction3 extends ActionSupport {
private int type;
private String r; public int getType() {
return type;
} public void setType(int type) {
this.type = type;
} public String getR() {
return r;
} public void setR(String r) {
this.r = r;
} @Override
public String execute() throws Exception {
if (type == 1) {
r = "/r1.jsp";
} else if (type == 2) {
r = "/r2.jsp";
} else {
r = "/main.jsp";
}
return SUCCESS;
}
}

UserAction3

使用redirect跳转时是两次request,需要传参

<!-- <result type="redirect">/xxx.jsp?t=${type}</result> -->

前台通过<s:property value="#parameters.t"/>从actioncontext里面取

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