好吧,我正在使用Java編寫一個REST服務器並嘗試測試它,但我一直得到錯誤代碼500請幫助。我已經介紹了代碼,並且知道它使用正確格式化的DataClass對象的ArrayList(我檢查過它們並在沒有REST前端的情況下成功運行)達到了此方法的底部。REST + Java +狀態500內部錯誤
這裏是REST方法我打電話
@GET
@Produces(MediaType.APPLICATION_XML)
public List<DataClass> receiveXML(
@DefaultValue("null") @QueryParam("artist") String artist,
@DefaultValue("null") @QueryParam("title") String title,
@DefaultValue("null") @QueryParam("album") String album,
@DefaultValue("null") @QueryParam("genre") String genre,
@DefaultValue("null") @QueryParam("type") String type,
@DefaultValue("false") @QueryParam("open") Boolean open,
@DefaultValue("false") @QueryParam("close") Boolean close,
@DefaultValue("noPath") @QueryParam("path") String path,
@DefaultValue("noKey") @QueryParam("key") String key,
@DefaultValue("null") @QueryParam("show") String show,
@DefaultValue("null") @QueryParam("season") String season,
@DefaultValue("null") @QueryParam("format") String format)
{
if(!artist.equals("null"))
this.artist = artist;
if(!title.equals("null"))
this.title = title;
if(!album.equals("null"))
this.album = album;
if(!genre.equals("null"))
this.genre = genre;
if(!type.equals("null"))
this.type = type;
if(!open.equals("false"))
this.open = open;
if(!close.equals("false"))
this.close = close;
if(!path.equals("noPath"))
this.path = path;
if(!key.equals("noKey"))
this.keyword = key;
if(!show.equals("null"))
this.show = show;
if(!season.equals("null"))
this.season = season;
if(!format.equals("null"))
this.format = format;
MultivaluedMap<String,String> queryParams = buildMap();
List<DataClass> resp = receive(queryParams);
return resp;
}
這裏是數據類
@XmlRootElement
public class DataClass {
public String pathname;
ArrayList<String> parsedSet;
ResultSet resultSet;
public String id, path, type, category, size, update, idMeta, title, description;
public String genre, album, artist, show, season;
public DataClass(ResultSet resultSet){
this.resultSet = resultSet;
parsedSet = new ArrayList<String>();
setStringVariables();
}
/**
* Sets the pathname variable of the local file to be returned
* @param pathname
*/
public DataClass(String pathname){
this.pathname = pathname;
}
methods to set the fields...
}
,這裏是我如何調用服務器,我知道服務器被正確的,因爲調用我有一個測試方法,只是返回一個字符串。
public static void testXML() {
//a map that adds parameters that will then be added to the the WebService
MultivaluedMap<String, String> queryParams = new MultivaluedMapImpl();
queryParams.add("type", "music");
//retrieve info for an artist in XML format
System.out.println(service.path("rest").path("media").queryParams(queryParams).accept(
MediaType.APPLICATION_XML).get(String.class));
}
這裏是我的錯誤
Exception in thread "main" com.sun.jersey.api.client.UniformInterfaceException: GET http://localhost:8080/TigrisRESTServer/rest/media?type=music returned a response status of 500 Internal Server Error
at com.sun.jersey.api.client.WebResource.handle(WebResource.java:676)
at com.sun.jersey.api.client.WebResource.access$200(WebResource.java:74)
at com.sun.jersey.api.client.WebResource$Builder.get(WebResource.java:503)
at tigris.restserver.client.ourClient.testXML(ourClient.java:45)
at tigris.restserver.client.ourClient.main(ourClient.java:28)
對不起,我忘了,包括一些東西
其中receiveXML定義有這個
@Path("/media")
public class Server {
}
類,這裏是網絡.xml文件
<?xml version="1.0" encoding="UTF-8"?>
<web-app xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xmlns="http://java.sun.com/xml/ns/javaee" xmlns:web="http://java.sun.com/xml/ns/javaee/web-app_2_5.xsd" xsi:schemaLocation="http://java.sun.com/xml/ns/javaee http://java.sun.com/xml/ns/javaee/web-app_2_5.xsd" id="WebApp_ID" version="2.5">
<display-name>RestServer</display-name>
<servlet>
<servlet-name>Tigris REST Server App</servlet-name>
<servlet-class>com.sun.jersey.spi.container.servlet.ServletContainer</servlet-class>
<init-param>
<param-name>com.sun.jersey.config.property.packages</param-name>
<param-value>tigris.restserver.connection</param-value>
</init-param>
<load-on-startup>1</load-on-startup>
</servlet>
<servlet-mapping>
<servlet-name>Tigris REST Server App</servlet-name>
<url-pattern>/rest/*</url-pattern>
</servlet-mapping>
</web-app>
,這工作正常(它是所有返回一個字符串)
這裏的客戶
public static void testTEST() {
System.out.println(service.path("rest").path("media").accept(
MediaType.TEXT_PLAIN).get(String.class));
}
這裏的服務器端
@GET
@Produces(MediaType.TEXT_PLAIN)
public String sayPlainTextHello() {
return "Hello Server";
}
謝謝 twain249
500是指在服務器端錯誤,所以你需要檢查從你的服務器日誌/輸出,以找出問題。 – willcodejavaforfood 2012-02-29 17:12:59