struts 找不到action 的可能原因
阿新 • • 發佈：2017-10-27
struts
struts版本2.5.13,配置如下
<?xml version="1.0" encoding="UTF-8"?>
<!DOCTYPE struts PUBLIC
"-//Apache Software Foundation//DTD Struts Configuration 2.5//EN"
"http://struts.apache.org/dtds/struts-2.5.dtd">
<struts>
<package name="app" namespace="/" extends="struts-default">
<action name="userAction_*" class="web.actions.UserAction" method="{1}">
<result>/success.jsp</result>
</action>
</package>
</struts>訪問 http://localhost/userAction_add 提示無法找action
HTTP Status 404 - There is no Action mapped for namespace [/] and action name [userAction_add] associated with context path []. type Status report message There is no Action mapped for namespace [/] and action name [userAction_add] associated with context path []. description The requested resource is not available. Apache Tomcat/7.0.82
struts為了安全,限制了Action被調用的方法,如下配置可正常訪問:
<?xml version="1.0" encoding="UTF-8"?>
<!DOCTYPE struts PUBLIC
"-//Apache Software Foundation//DTD Struts Configuration 2.5//EN"
"http://struts.apache.org/dtds/struts-2.5.dtd">
<struts>
<package name="app" namespace="/" extends="struts-default">
<global-allowed-methods>regex:.*</global-allowed-methods> <!-- 方法一 -->
<action name="userAction_*" class="web.actions.UserAction" method="{1}">
<result>/success.jsp</result>
<allowed-methods>regex:.*</allowed-methods> <!-- 方法二 -->
</action>
</package>
</struts>標簽<global-allowed-methods>和<allowed-methods>中可是使用regex:開頭的正則表達式,來表示允許被執行的Action方法,regex:.*表示任何方法都可以被調用; 也可以將允許被調用的方法名放入其中,多個方法用逗號隔開,如:add,delete
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struts 找不到action 的可能原因