java 在 Struts2 中重定向时在 url 中传递参数
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Passing parameters in url while redirecting in Struts2
提问by MistyD
Possible Duplicate:
Strut2 - Get Property value in next Action
可能的重复：
Strut2 - 在下一个操作中获取属性值
I am trying to achieve the following using Struts2
我正在尝试使用 Struts2 实现以下目标
response.sendRedirect("Pay.jsp?msg=transfer");
This is what I am doing:
这就是我正在做的：
<action name="AddPayAction" class="controller.AddPayAction">
<param name="paraA"></param>
<param name="paraB"></param>
<param name="msg">SomeMessage</param>
<result name="error">/Error.jsp</result>
<result name="success" type="redirect">/Pay.jsp</result>
</action>
Any suggestions why the above doesn't get redirected as:
任何建议为什么上述内容不会被重定向为：
Pay.jsp?msg=SomeMessage
回答by MistyD
So far the solution that worked for me was
到目前为止，对我有用的解决方案是
<result name="success" type="redirect">
<param name="location">/Pay.jsp?msg=${msg}</param>
</result>
where the setters and getters of msg are defined in the action
其中 msg 的 setter 和 getter 是在 action 中定义的
回答by anupam
<action name="AddPayAction" class="controller.AddPayAction">
<result name="success" type="redirectAction">
<param name="actionName">Pay</param>
<param name="msg">SomeMessage</param>
</result>
</action>
<action name="Pay">
<result name="success">/Pay.jsp</result>
</action>
If you want to pass a variables value e.g. msgwhose getter/setter is declared in AddPayActionthen use this
如果你想传递一个变量值，例如msg它的 getter/setter 声明在AddPayAction然后使用这个
<param name="msg">${msg}</param>
回答by jddsantaella
Taking a look to your code, it looks like you just want to end the action in a JSP, so I do not understand why you are trying to do it using redirecitontype. I recommend to use default redirect type: dispatcher
看看你的代码，看起来你只是想在 JSP 中结束这个动作，所以我不明白你为什么要使用redirecitontype来完成它。我建议使用默认重定向类型：dispatcher
<action name="AddPayAction" class="controller.AddPayAction">
<result name="error">/Error.jsp</result>
<result name="success">/Pay.jsp</result>
</action>
Notice that as dispatcheris de default type you don't need to write type="dispatcher"in the results. So, now, if you want to have variables available in the JSP, you just need to declare those variables in the action with its get/set methods. For example:
请注意，dispatcher您不需要type="dispatcher"在结果中写入默认类型。所以，现在，如果您想在 JSP 中使用变量，您只需要在操作中使用其 get/set 方法声明这些变量。例如：
private String msg;
public String AddPayAction() {
// your action code
this.setMsg("my message");
return SUCCESS;
}
public String getMsg() {
return msg;
}
public void setMsg(String msg) {
this.msg= msg;
}
Take a look to the result typesavailable.
查看可用的结果类型。
回答by nmc
I think that should be something like:
我认为应该是这样的：
<action name="AddPayAction" class="controller.AddPayAction">
<result name="error">/Error.jsp</result>
<result name="success" type="redirect">
<param name="location">Pay.jsp</param>
<param name="paraA"></param>
<param name="paraB"></param>
<param name="msg">SomeMessage</param>
</result>
</action>
See example at http://struts.apache.org/2.1.6/docs/redirect-result.html
请参阅http://struts.apache.org/2.1.6/docs/redirect-result.html 中的示例
