我尝试在GWT项目中使用RESTEasy实现一个REST服务,但是当我访问相应的URI时,应用程序会返回以下信息:
Grave: failed to execute
javax.ws.rs.NotFoundException: Could not find resource for full path: http://127.0.0.1:8888/api/matches
at org.jboss.resteasy.core.registry.ClassNode.match(ClassNode.java:73)
at org.jboss.resteasy.core.registry.RootClassNode.match(RootClassNode.java:48)
at org.jboss.resteasy.core.ResourceMethodRegistry.getResourceInvoker(ResourceMethodRegistry.java:444)
at org.jboss.resteasy.core.SynchronousDispatcher.getInvoker(SynchronousDispatcher.java:234)
at org.jboss.resteasy.core.SynchronousDispatcher.invoke(SynchronousDispatcher.java:171)
at org.jboss.resteasy.plugins.server.servlet.ServletContainerDispatcher.service(ServletContainerDispatcher.java:220)
at org.jboss.resteasy.plugins.server.servlet.HttpServletDispatcher.service(HttpServletDispatcher.java:56)
at org.jboss.resteasy.plugins.server.servlet.HttpServletDispatcher.service(HttpServletDispatcher.java:51)
at javax.servlet.http.HttpServlet.service(HttpServlet.java:717)
我的web.xml文件如下:
<?xml version="1.0" encoding="UTF-8" standalone="no"?><web-app xmlns="http://java.sun.com/xml/ns/javaee" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" version="2.5" xsi:schemaLocation="http://java.sun.com/xml/ns/javaee http://java.sun.com/xml/ns/javaee/web-app_2_5.xsd">
<!-- All REST resources will be prefixed by /api -->
<context-param>
<param-name>resteasy.servlet.mapping.prefix</param-name>
<param-value>/api</param-value>
</context-param>
<!-- Servlets -->
<servlet>
<servlet-name>Resteasy</servlet-name>
<servlet-class>org.jboss.resteasy.plugins.server.servlet.HttpServletDispatcher</servlet-class>
<init-param>
<param-name>javax.ws.rs.Application</param-name>
<param-value>eii.api.MatchApplication</param-value>
</init-param>
</servlet>
<!-- Servlet mappings -->
<!-- All calls to /api/xxx will be sent to the reasy servlet -->
<servlet-mapping>
<servlet-name>Resteasy</servlet-name>
<url-pattern>/api/*</url-pattern>
</servlet-mapping>
</web-app>
应用程序的实现:
public class MatchApplication extends Application {
private Set<Object> singletons = new HashSet<Object>();
private Set<Class<?>> classes = new HashSet<Class<?>>();
public MatchApplication() {
singletons.add(new MatchServiceImpl());
}
@Override
public Set<Class<?>> getClasses() {
return classes;
}
@Override
public Set<Object> getSingletons() {
return singletons;
}
}
这里是提供REST服务的类:
/* Imports */
...
@Path("/matches")
public class MatchResource {
private static MatchResource _instance = null;
private MatchRepository repository;
public MatchResource() {
repository = new MapMatchRepository();
}
public static MatchResource getInstance() {
if (_instance == null)
_instance = new MatchResource();
return _instance;
}
@GET
@Path("/{id}")
@Produces("application/json")
public Match getMatch(@PathParam("id") int id) {
return repository.getMatch(id);
}
@GET
@Produces("application/json")
public Matches getMatchesCurrentRound() {
return repository.getMatchesCurrentRound();
}
...
}
我想要的是,在进入例如:http://127.0.0.1:8888/api/matches 时返回一个JSON文件。是否有人知道我做错了什么?
编辑: 如果我访问 http://127.0.0.1:8888/api/ 或 http://127.0.0.1:8888/api/* (其中*是您想要写的任何内容),浏览器将不显示任何内容。但是,如果我访问 http://127.0.0.1:8888/oqiwn(其中oqiwn是一个随机字符串),浏览器会显示一个错误404。
此外,我尝试了RESTClient插件并返回以下答案: 使用 http://127.0.0.1:8888/api/ 或 http://127.0.0.1:8888/api/*
Status Code: 404 Not Found
Cache-Control: no-cache
Content-Length: 0
Date: Sun, 10 Nov 2013 22:59:57 GMT
Expires: Fri, 01 Jan 1990 00:00:00 GMT
Server: Development/1.0
使用 http://127.0.0.1:8888/oqiwn
进行操作。
Status Code: 404 Not Found
Cache-Control: no-cache
Content-Length: 83
Content-Type: text/html; charset=iso-8859-1
Date: Sun, 10 Nov 2013 22:59:05 GMT
Expires: Fri, 01 Jan 1990 00:00:00 GMT
Server: Development/1.0
请注意,第一个中没有
Content-Type: text/html; charset=iso-8859-1
。
@Path
更改为@Path("/api/matches")
,它是否有效? - Duncan Jones