我试图在GWT项目中使用RESTEasy实现REST服务,但是当我进入相应的URI时,应用程序将返回:
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是:
<?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>
执行应用程序:
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();
}
...
}
我想要的是进入时返回JSON文件,例如:
http://127.0.0.1:8888/api/matches
有人知道我在做什么错吗?
编辑:
如果我访问
http://127.0.0.1:8888/api/
或http://127.0.0.1:8888/api/*
(其中*是您要编写的内容),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
是随机字符串),则浏览器将显示Error 404
。另外,我尝试了RESTClient插件,这些是返回的答案:
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
并带有
http://127.0.0.1:8888/oqiwn
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
注意
Content-Type: text/html; charset=iso-8859-1
不在第一个中。 最佳答案
您使用名为getMatches()
的方法添加了资源,Resteasy一无所知。您需要覆盖getSingletons()
的Application
方法,并从那里返回根资源,如下所示。
Documentation Here
示例:
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;
}
}