Struts2之Result

来源：互联网发布：winzip mac 6 注册机编辑：程序博客网时间：2024/04/27 23:39

Result类型

dispatcher (默认的)
redirect
chain
redirectAction
freemarker
httpheader
stream
velocity
xslt
plaintext
tiles

先上index.jsp代码：

<body>Result类型<ol><li><a href="r/r1">dispatcher</a></li><li><a href="r/r2">redirect</a></li><li><a href="r/r3">chain</a></li><li><a href="r/r4">redirectAction</a></li><li>freemarker</li><li>httpheader</li><li>stream</li><li>velocity</li><li>xslt</li><li>plaintext</li><li>tiles</li></ol></body>

再上struts.xml:

<struts>    <constant name="struts.devMode" value="true" />    <package name="resultTypes" namespace="/r" extends="struts-default">    <action name="r1">    <result type="dispatcher">/r1.jsp</result><!-- 服务器端跳转dispatcher只能到视图，不能到Action，就是servlet -->    </action>        <action name="r2">    <result type="redirect">/r2.jsp</result><!-- 客户端跳转。同上 -->    </action>        <action name="r3">    <result type="chain">r1</result>    </action>        <action name="r4">    <result type="redirectAction">r2</result>    </action>        </package></struts>

GlobalResult-

index.htnl代码:

<body>Result类型<ol><li><a href="user/user?type=1">返回success</a></li><li><a href="user/user?type=2">返回error</a></li><li><a href="user/user?type=3">返回global result</a></li><li><a href="admin/admin">admin,继承user包</a></li></ol></body>

Struts2.xml代码：

<struts>    <constant name="struts.devMode" value="true" />    <package name="user" namespace="/user" extends="struts-default">            <global-results>    <result name="mainpage">/main.jsp</result>    </global-results>        <action name="index">    <result>/index.jsp</result>    </action>        <action name="user" class="com.china.UserAction">    <result>/user_success.jsp</result>    <result name="error">/user_error.jsp</result>    </action>        </package>        <package name="admin" namespace="/admin" extends="user">    <action name="admin" class="com.china.AdminAction">    <result>/admin.jsp</result>    </action>    </package></struts>

几个用到的java程序：

import com.opensymphony.xwork2.ActionSupport;public class UserAction extends ActionSupport {private int type;public int getType() {return type;}public void setType(int type) {this.type = type;}@Overridepublic String execute() throws Exception {if(type == 1) return "success";else if (type == 2) return "error";else return "mainpage";}}

还有一个：

import com.opensymphony.xwork2.ActionSupport;public class AdminAction extends ActionSupport {@Overridepublic String execute() throws Exception {return "mainpage";}}

DynamicResult动态结果集：（了解的级别）

first index.jsp:

<body>动态结果一定不要忘了为动态结果的保存值设置set get方法<ol><li><a href="user/user?type=1">返回success</a></li><li><a href="user/user?type=2">返回error</a></li></ol></body>

then UserAction.java:

mport com.opensymphony.xwork2.ActionSupport;public class UserAction extends ActionSupport {private int type;private String r;public String getR() {return r;}public void setR(String r) {this.r = r;}public int getType() {return type;}public void setType(int type) {this.type = type;}@Overridepublic String execute() throws Exception {if(type == 1) r="/user_success.jsp";else if (type == 2) r="/user_error.jsp";return "success";}}

last struts2.xml:

<struts>    <constant name="struts.devMode" value="true" />    <package name="user" namespace="/user" extends="struts-default">        <action name="user" class="com.china.UserAction">    <result>${r}</result>    </action>        </package>    </struts>

ResultWithParams:

frist index.jsp:

<body>向结果传参数<ol><li><a href="user/user?type=1">传参数</a></li></ol></body>

then UserAction.java:

import com.opensymphony.xwork2.ActionSupport;public class UserAction extends ActionSupport {private int type;public int getType() {return type;}public void setType(int type) {this.type = type;}@Overridepublic String execute() throws Exception {return "success";}}

and then struts.xml:

<struts>    <constant name="struts.devMode" value="true" />    <package name="user" namespace="/user" extends="struts-default">        <action name="user" class="com.china.UserAction">    <result type="redirect">/user_success.jsp?t=${type}</result>    </action>        </package>    </struts>

last user_success.jsp:

<body>User Success!</br>from valuestack: <s:property value="t"/><br/><!--this is wrong,can't receiver-->from actioncontext: <s:property value="#parameters.t"/><s:debug></s:debug></body>