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我正在尝试实现SEO 友好的 URL，例如/movies/{id}/actors/{actor_id}指出特定电影的演员详细信息。所以我尝试使用Advanced Wildcard mappings，但是当我在我的项目中实现 REST API 时它不起作用，但在我有一个简单的 struts2 应用程序的项目中也是如此，它将 JSP 页面显示为结果。

以下是运行的简单 struts2 应用程序的文件：

struts.xml

<?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>

    <constant name="struts.devMode" value="true" />

    <constant name="struts.enable.SlashesInActionNames" value="true"/>
    <constant name="struts.mapper.alwaysSelectFullNamespace" value="false"/>
    <constant name="struts.patternMatcher" value="regex"/>
    <constant name="struts.matcher.appendNamedParameters" value="true"/>

    <package name="basicstruts2" extends="struts-default">
        <action name="index">
            <result>/index.jsp</result>
        </action>
        <action name="/{uid}/hello/{userName}" class="com.struts.kavin.action.HelloWorldAction" method="execute">
           <result name="success">/hello_world.jsp</result>
        </action> 
   </package> 
</struts>

HelloWorldAction.java

package com.struts.kavin.action;

import com.opensymphony.xwork2.ActionSupport;

public class HelloWorldAction  extends ActionSupport {
    private String userName;
    private String uid;

    public String execute(){
        return SUCCESS;
    }


    public String getUserName() {
        return userName;
    }

    public void setUserName(String userName) {
        this.userName = userName;
    }

    public String getUid() {
        return uid;
    }

    public void setUid(String uid) {
        this.uid = uid;
    }
}

hello_world.jsp

<!DOCTYPE html>
<%@ page language="java" contentType="text/html; charset=UTF-8" pageEncoding="UTF-8" %>
<%@ taglib prefix="s" uri="/struts-tags" %>
<html>
  <head>
    <meta http-equiv="Content-Type" content="text/html; charset=UTF-8">
    <title>Hello World!</title>
  </head>
  <body>

    <p>Username: <s:property value="userName" /></p>
    <p>UID: <s:property value="uid" /></p>

  </body>
</html>

index.jsp：显示超链接以导航到各个页面。

OUTPUT: URL:http://localhost:8080/Sample/dsadsadsad/hello/kavin.action

Displays:

UID：dsadsadsad

用户名：kavin

以下是不工作的 struts2 REST API 应用程序的文件：

struts.xml

<?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>

    <constant name="struts.devMode" value="true"/>
    <constant name="struts.convention.action.suffix" value="Controller"/>
    <constant name="struts.convention.action.mapAllMatches" value="true"/>
    <constant name="struts.convention.default.parent.package" value="rest-default"/>
    <constant name="struts.convention.package.locators" value="action"/>

    <constant name="struts.enable.SlashesInActionNames" value="true"/>
    <constant name="struts.mapper.alwaysSelectFullNamespace" value="false"/>
    <constant name="struts.patternMatcher" value="regex"/>
    <constant name="struts.matcher.appendNamedParameters" value="true"/>

    <constant name="struts.rest.content.restrictToGET" value="false"/>

<package name="movies" extends="rest-default, json-default">

        <interceptors>
            <interceptor name="json" class="org.apache.struts2.json.JSONInterceptor"/>

            <interceptor-stack name="jsonStack">
                <interceptor-ref name="json"/>
                <interceptor-ref name="defaultStack"/>
            </interceptor-stack>
        </interceptors>

<action name="movies" class="com.struts.movie.action.MoviesController">
            <interceptor-ref name="jsonStack"/>

            <result type="json">
                <!-- declarations for mappings from Request JSON Body goes here-->
                <param name="root">movie</param>
            </result>
        </action>

 </package>

 <package name="actors" namespace="/movies" extends="rest-default, json-default">
        <interceptors>
            <interceptor name="json" class="org.apache.struts2.json.JSONInterceptor"/>

            <interceptor-stack name="jsonStack">
                <interceptor-ref name="json"/>
                <interceptor-ref name="defaultStack"/>
            </interceptor-stack>
        </interceptors>

        <action name="/{movie_id}/actors/" class="com.struts.movie.action.ActorsController">
            <interceptor-ref name="jsonStack"/>
            <!-- <param name="movie_id">{1}</param> -->
            <result type="json">
                <!-- declarations for mappings from Request JSON Body goes here-->
                <param name="root">actor</param>
            </result>
        </action>
    </package>
</struts>

ActorsController.java

package com.struts.movie.action;
public class ActorsController implements ModelDriven<Object> {
    private Actor actor;
    private String id;
    private String movie_id;
    private Object model;
    
    @Override
    public Object getModel() {
        return model;
    }
    
   // RESETful method implementations

   // Respective getters & setters are added
}

OUTPUT:

URL: GET:http://localhost:8080/movie_api/movies/1/actors.json

Error:

Struts 问题报告

Struts 检测到一个未处理的异常：

消息：没有为命名空间 /movies 和动作名称 1 映射的动作。堆栈跟踪没有为命名空间 /movies 和动作名称 1 映射的动作。 - [未知位置] com.opensymphony.xwork2.DefaultActionProxy.prepare(DefaultActionProxy.java: 195) com.opensymphony.xwork2.DefaultActionProxyFactory.createActionProxy(DefaultActionProxyFactory.java:76) org.apache.struts2.rest.RestActionProxyFactory.createActionProxy(RestActionProxyFactory.java:50) org.apache.struts2.dispatcher.Dispatcher.serviceAction(Dispatcher. java:564) org.apache.struts2.dispatcher.ExecuteOperations.executeAction(ExecuteOperations.java:79) org.apache.struts2.dispatcher.filter.StrutsPrepareAndExecuteFilter.doFilter(StrutsPrepareAndExecuteFilter.java:141) org.mortbay.jetty.servlet。 ServletHandler$CachedChain.doFilter(ServletHandler.java:1084) org.mortbay.jetty.servlet。ServletHandler.handle(ServletHandler.java:360) org.mortbay.jetty.security.SecurityHandler.handle(SecurityHandler.java:216) org.mortbay.jetty.servlet.SessionHandler.handle(SessionHandler.java:181) org.mortbay。 jetty.handler.ContextHandler.handle(ContextHandler.java:726) org.mortbay.jetty.webapp.WebAppContext.handle(WebAppContext.java:405) org.mortbay.jetty.handler.ContextHandlerCollection.handle(ContextHandlerCollection.java:206) org.mortbay.jetty.handler.HandlerCollection.handle(HandlerCollection.java:114) org.mortbay.jetty.handler.HandlerWrapper.handle(HandlerWrapper.java:152) org.mortbay.jetty.Server.handle(Server.java: 324）org.mortbay.jetty.HttpConnection.handleRequest（HttpConnection.java:505）org.mortbay.jetty.HttpConnection$RequestHandler.content（HttpConnection.java:843）org.mortbay.jetty.HttpParser.parseNext（HttpParser.java：第648章）jetty.HttpParser.parseAvailable(HttpParser.java:211) org.mortbay.jetty.HttpConnection.handle(HttpConnection.java:380) org.mortbay.io.nio.SelectChannelEndPoint.run(SelectChannelEndPoint.java:395) org.mortbay。 thread.QueuedThreadPool$PoolThread.run(QueuedThreadPool.java:488)

有人可以帮我弄清楚应该怎么做才能让它工作吗？我也尝试<constant name="struts.mapper.class" value="org.apache.struts2.dispatcher.mapper.Restful2ActionMapper" />从Restful2ActionMapper添加。

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