Jersey：com.sun.jersey.spi.inject.Errors $ ErrorMessagesException [英] Jersey: com.sun.jersey.spi.inject.Errors$ErrorMessagesException
本文介绍了Jersey：com.sun.jersey.spi.inject.Errors $ ErrorMessagesException的处理方法，对大家解决问题具有一定的参考价值，需要的朋友们下面随着小编来一起学习吧！
问题描述
我得到这个错误（完整日志）
INFO：扫描包中的根资源和提供者类：
de.tum.fml.idp.backend.rest
Dez 04，2013 2:29:40 PM com.sun.jersey.api.core.ScanningResourceConfig logClasses
INFO：找到的根资源类：
class de.tum.fml.idp.backend.rest .PlayerWebService
class de.tum.fml.idp.backend.rest.RestSample
Dez 04，2013 2:29:40 PM com.sun.jersey.api.core.ScanningResourceConfig init
信息：找不到提供者类。
Dez 04，2013 2:29:41 PM com.sun.jersey.server.impl.application.WebApplicationImpl _initiate
INFO：启动Jersey应用程序，版本泽西岛：1.8 06/24/2011 12： 17 PM'
Dez 04，2013 2:29:42 PM com.sun.jersey.spi.inject.Errors processErrorMessages
SEVERE：在资源和/或提供者类中检测到以下错误和警告：
SEVERE：产生媒体类型冲突。资源方法public java.util.List de.tum.fml.idp.backend.rest.PlayerWebService.getPlayerIDs（）and public de.tum.fml.idp.gamelog.backend.beans.Player de.tum.fml.idp .backend.rest.PlayerWebService.createUser（）可以产生相同的媒体类型
SEVERE：产生媒体类型冲突。资源方法public java.util.List de.tum.fml.idp.backend.rest.PlayerWebService.getPlayers（）and public de.tum.fml.idp.gamelog.backend.beans.Player de.tum.fml.idp .backend.rest.PlayerWe
bService.createUser（）可以生成相同的媒体类型
2013-12-04 14：29：42.010：WARN：/0.1-SNAPSHOT：不可用
com。 sun.jersey.spi.inject.Errors $ ErrorMessagesException
at com.sun.jersey.spi.inject.Errors.processErrorMessages（Errors.java:170）
at com.sun.jersey.spi.inject .Errors.postProcess（Errors.java:136）
at com.sun.jersey.spi.inject.Errors.processWithErrors（Errors.java:199）
at com.sun.jersey.server.impl .application.WebApplicationImpl.initiate（WebApplicationImpl.java:771）
at com.sun.jersey.server.impl.application.WebApplicationImpl.initiate（WebApplicationImpl.java:766）
at com.sun.jersey .spi.container.servlet.ServletContainer.initiate（ServletContainer.java:488）
at com.sun.jersey.spi.conta iner.servlet.ServletContainer $ InternalWebComponent.initiate（ServletContainer.java:318）
at com.sun.jersey.spi.container.servlet.WebComponent.load（WebComponent.java:609）
at com。 sun.jersey.spi.container.servlet.WebComponent.init（WebComponent.java:210）
at com.sun.jersey.spi.container.servlet.ServletContainer.init（ServletContainer.java:373）
at com.sun.jersey.spi.container.servlet.ServletContainer.init（ServletContainer.java:556）
at javax.servlet.GenericServlet.init（GenericServlet.java:241）
at org。 eclipse.jetty.servlet.ServletHolder.initServlet（ServletHolder.java:477）$ or $
org.eclipse.jetty.servlet.ServletHolder.doStart（ServletHolder.java:293）
at org.eclipse.jetty。 util.component.AbstractLifeCycle.start（AbstractLifeCycle.java:64）
在org.eclipse.jetty.servlet.ServletHandler.initialize（ServletHandler.java:730）
在org.eclipse.jetty.servlet。 ServletContextHandler.startCont ext（ServletContextHandler.java:254）
at org.eclipse.jetty.webapp.WebAppContext.startContext（WebAppContext.java:1240）
at org.eclipse.jetty.server.handler.ContextHandler.doStart（
at org.eclipse.jetty.webapp.WebAppContext.doStart（WebAppContext.java:482）
at org.eclipse.jetenter code herety.util.component.AbstractLifeCycle.start（ AbstractLifeCycle.java:64）
at org.eclipse.jetty.server.handler.HandlerCollection.doStart（HandlerCollection.java:229）
at org.eclipse.jetty.server.handler.ContextHandlerCollection.doStart（
在org.eclipse.jetty.server.handler.HandlerCollection.doStart（
at org.eclipse.jetty.util.component.AbstractLifeCycle.start（AbstractLifeCycle.java:64）
at org.eclipse.jetty.server.handler.HandlerCollection.doStart（ HandlerCollection.java:229）
在org.eclipse.jetty.util.component.AbstractLifeCycle.start（AbstractLifeCycle.java:64）
在org.eclipse.jetty.server.handler。 HandlerWrapper.doStart（HandlerWrapper.java:95）
位于org.eclipse.jetty.server.Server.doStart（Server.java:281）
位于org.eclipse.jetty.util.component.AbstractLifeCycle。 start（AbstractLifeCycle.java:64）
at sun.reflect.NativeMethodAccessorImpl.invoke0（Native Method）
at
sun.reflect.NativeMethodAccessorImpl.invoke（NativeMethodAccessorImpl.java:57 ）
at sun.reflect.DelegatingMethodAccessorImpl.invoke（DelegatingMethodAccessorImpl.java:43）
at java.lang.reflect.Method.Method.invoke（Method.java:601）
at org.codehaus。 cargo.container.jetty.internal.JettyExecutorThread.run（JettyExecutorThread.java:69）
2013-12-04 14：29：42.022：INFO：oejw.WebInfConfiguration：Extract jar：file：/ C：/ Users / Stefan / Dropbox / Studium / TUM / IDP / repo / backend / backend / target / cargo / configurations / jetty7x / cargocpc.war！/到C：\ Users \Stefan\AppData\Local\Temp\jetty -0.0.0.0-8080-cargocpc.war-_cargocpc -any-\webapp
2013-12-04 14：29：42.052：INFO：oejsh.ContextHandler：started oejwWebAppContext {/ cargocpc，file：/ C：/ Users / Stefan / AppData / Local / Temp /码头-0.0.0.0-8080-cargocpc.war-_cargocpc-任何 - / web应用/}，C：\Users\Stefan\Dropbox\Studium\TUM\IDP\repo\backend\backend \target\cargo\configurations\jetty7x\cargocpc.war
2013-12-04 14：29：42.108：INFO：oejs.AbstractConnector：Started SelectChannelConnector@0.0.0.0：8080
以下是我用过的代码：
package de.tum.fml.idp.backend.rest;
import java.util.List;
import javax.ws.rs.GET;
import javax.ws.rs.POST;
import javax.ws.rs.Path;
import javax.ws.rs.PathParam;
导入de.tum.fml.idp.backend.rest.interfaces.PlayerManagment;
import de.tum.fml.idp.gamelog.backend.beans.Player;
@Path（/ players）
public class PlayerWebService implements PlayerManagment {
@Override
@GET
public Player createUser（）{
// TODO自动生成的方法存根
返回新的Player（）;
}
@Override
@POST
public Player updatePlayer（Player player）{
// TODO自动生成的方法存根
return新玩家（）;
}
@Override
@GET
@Path（/ getPlayer / {param}）
public Player getPlayer（@PathParam（param ）int id）{
// TODO自动生成的方法存根
Player bla = new Player（）;
bla.setId（-1）;
return bla;
}
@Override
@GET
public List< Player> getPlayers（）{
// TODO自动生成的方法存根
返回null;
}
@Override
@GET
public List< Integer> getPlayerIDs（）{
// TODO自动生成的方法存根
返回null;
}
}
和Player类。
package de.tum.fml.idp.gamelog.backend.beans;
import java.util.ArrayList;
import java.util.List;
import javax.persistence.GeneratedValue;
import javax.persistence.Id;
import javax.persistence.OneToMany;
import javax.xml.bind.annotation.XmlRootElement;
import org.hibernate.annotations.Entity;
// @ XmlRootElement
public class Player {
// @Id
// @GeneratedValue
private int id;
私人字符串名称;
私人字符串密码;
阿凡达头像;
私人PlayerProperties属性;
private int tempId;
private int availablePropertyPoints;
private int totalPropertyPoints;
// @OneToMany
private ArrayList< AchievedAchievment>个成就;
public int getId（）{
return id;
}
public void setId（int id）{
this.id = id;
}
public String getName（）{
return name;
}
public void setName（String string）{
this.name = string;
}
public String getPassword（）{
return password;
}
public void setPassword（String password）{
this.password = password;
}
public Avatar getAvatar（）{
return avatar;
}
public void setAvatar（Avatar avatar）{
this.avatar = avatar;
}
public PlayerProperties getProperties（）{
return properties;
}
public void setProperties（PlayerProperties properties）{
this.properties = properties;
}
public int getTempId（）{
return tempId;
}
public void setTempId（int tempId）{
this.tempId = tempId;
}
public int getAvailablePropertyPoints（）{
return availablePropertyPoints;
}
public void setAvailablePropertyPoints（int availablePropertyPoints）{
this.availablePropertyPoints = availablePropertyPoints;
}
public int getTotalPropertyPoints（）{
return totalPropertyPoints;
}
public void setTotalPropertyPoints（int totalPropertyPoints）{
this.totalPropertyPoints = totalPropertyPoints;
}
public List< AchievedAchievment> getAchievments（）{
if（achievments == null）
achievments = new ArrayList< AchievedAchievment>（）;
回报成就;
}
public void setAchievments（ArrayList< AchievedAchievment> achievments）{
this.achievments = achievments;
$ b $ public void addAchievment（AchievedAchievment aa1）{
if（achievments == null）
achievments = new ArrayList< AchievedAchievment>（）;
if（aa1.getPlayer（）！= this）
抛出新的RuntimeException（Player：Achievment已经提供给另一个用户）;
else
achievments.add（aa1）;
$ b $ / code $ / pre
有没有人知道为什么这样做没有工作？尝试已经评论几乎所有的东西，几个不同的Maven依赖关系，但它不会开始工作。
玩具示例工作正常......： - /
我希望你能帮助我，
kr，
解决方案错误消息告诉你什么是错误的（你必须查找以开头的行）：
b
$ b
严重：产生媒体类型冲突。资源方法public java.util.List de.tum.fml.idp.backend.rest.PlayerWebService.getPlayerIDs（）and public de.tum.fml.idp.gamelog.backend.beans.Player de.tum.fml.idp .backend.rest.PlayerWebService.createUser（）可以产生相同的媒体类型。
SEVERE：产生媒体类型冲突。资源方法public java.util.List de.tum.fml.idp.backend.rest.PlayerWebService.getPlayers（）and public de.tum.fml.idp.gamelog.backend.beans.Player de.tum.fml.idp .backend.rest.PlayerWebService.createUser（）可以产生相同的媒体类型。
这意味着您有多个GET端点用于相同的路径（在类的注释 @Path（/ players））中定义，生成相同的媒体类型：
@GET
public List< Player> getPlayers（）
@GET
public Player createUser（）
@GET
public List< Integer> getPlayerIDs（）
泽西岛无法确定在发送GET请求到机/播放机。您需要为其中一些端点定义单独的路径。
如果您的意图实际上是让它们具有相同的路径，您需要添加 @Produces 注释与不同的媒体类型，所以Jersey可以根据 Accept 标题选择正确的方法。在请求使用请求主体的情况下，您还可以使用 @Consumes 注释。否则，您需要添加 @Path 注释或更改方法的请求类型，以避免此冲突。
i've got a problem using jersey (1.8), maven and hibernate.
i get this error (the "full" log)
INFO: Scanning for root resource and provider classes in the packages:
de.tum.fml.idp.backend.rest
Dez 04, 2013 2:29:40 PM com.sun.jersey.api.core.ScanningResourceConfig logClasses
INFO: Root resource classes found:
class de.tum.fml.idp.backend.rest.PlayerWebService
class de.tum.fml.idp.backend.rest.RestSample
Dez 04, 2013 2:29:40 PM com.sun.jersey.api.core.ScanningResourceConfig init
INFO: No provider classes found.
Dez 04, 2013 2:29:41 PM com.sun.jersey.server.impl.application.WebApplicationImpl _initiate
INFO: Initiating Jersey application, version 'Jersey: 1.8 06/24/2011 12:17 PM'
Dez 04, 2013 2:29:42 PM com.sun.jersey.spi.inject.Errors processErrorMessages
SEVERE: The following errors and warnings have been detected with resource and/or provider classes:
SEVERE: Producing media type conflict. The resource methods public java.util.List de.tum.fml.idp.backend.rest.PlayerWebService.getPlayerIDs() and public de.tum.fml.idp.gamelog.backend.beans.Player de.tum.fml.idp.backend.rest.PlayerWebService.createUser() can produce the same media type
SEVERE: Producing media type conflict. The resource methods public java.util.List de.tum.fml.idp.backend.rest.PlayerWebService.getPlayers() and public de.tum.fml.idp.gamelog.backend.beans.Player de.tum.fml.idp.backend.rest.PlayerWe
bService.createUser() can produce the same media type
2013-12-04 14:29:42.010:WARN:/0.1-SNAPSHOT:unavailable
com.sun.jersey.spi.inject.Errors$ErrorMessagesException
at com.sun.jersey.spi.inject.Errors.processErrorMessages(Errors.java:170)
at com.sun.jersey.spi.inject.Errors.postProcess(Errors.java:136)
at com.sun.jersey.spi.inject.Errors.processWithErrors(Errors.java:199)
at com.sun.jersey.server.impl.application.WebApplicationImpl.initiate(WebApplicationImpl.java:771)
at com.sun.jersey.server.impl.application.WebApplicationImpl.initiate(WebApplicationImpl.java:766)
at com.sun.jersey.spi.container.servlet.ServletContainer.initiate(ServletContainer.java:488)
at com.sun.jersey.spi.container.servlet.ServletContainer$InternalWebComponent.initiate(ServletContainer.java:318)
at com.sun.jersey.spi.container.servlet.WebComponent.load(WebComponent.java:609)
at com.sun.jersey.spi.container.servlet.WebComponent.init(WebComponent.java:210)
at com.sun.jersey.spi.container.servlet.ServletContainer.init(ServletContainer.java:373)
at com.sun.jersey.spi.container.servlet.ServletContainer.init(ServletContainer.java:556)
at javax.servlet.GenericServlet.init(GenericServlet.java:241)
at org.eclipse.jetty.servlet.ServletHolder.initServlet(ServletHolder.java:477)
at org.eclipse.jetty.servlet.ServletHolder.doStart(ServletHolder.java:293)
at org.eclipse.jetty.util.component.AbstractLifeCycle.start(AbstractLifeCycle.java:64)
at org.eclipse.jetty.servlet.ServletHandler.initialize(ServletHandler.java:730)
at org.eclipse.jetty.servlet.ServletContextHandler.startContext(ServletContextHandler.java:254)
at org.eclipse.jetty.webapp.WebAppContext.startContext(WebAppContext.java:1240)
at org.eclipse.jetty.server.handler.ContextHandler.doStart(ContextHandler.java:689)
at org.eclipse.jetty.webapp.WebAppContext.doStart(WebAppContext.java:482)
at org.eclipse.jetenter code herety.util.component.AbstractLifeCycle.start(AbstractLifeCycle.java:64)
at org.eclipse.jetty.server.handler.HandlerCollection.doStart(HandlerCollection.java:229)
at org.eclipse.jetty.server.handler.ContextHandlerCollection.doStart(ContextHandlerCollection.java:172)
at org.eclipse.jetty.util.component.AbstractLifeCycle.start(AbstractLifeCycle.java:64)
at org.eclipse.jetty.server.handler.HandlerCollection.doStart(HandlerCollection.java:229)
at org.eclipse.jetty.util.component.AbstractLifeCycle.start(AbstractLifeCycle.java:64)
at org.eclipse.jetty.server.handler.HandlerWrapper.doStart(HandlerWrapper.java:95)
at org.eclipse.jetty.server.Server.doStart(Server.java:281)
at org.eclipse.jetty.util.component.AbstractLifeCycle.start(AbstractLifeCycle.java:64)
at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
at
sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:57)
at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
at java.lang.reflect.Method.invoke(Method.java:601)
at org.codehaus.cargo.container.jetty.internal.JettyExecutorThread.run(JettyExecutorThread.java:69)
2013-12-04 14:29:42.022:INFO:oejw.WebInfConfiguration:Extract jar:file:/C:/Users/Stefan/Dropbox/Studium/TUM/IDP/repo/backend/backend/target/cargo/configurations/jetty7x/cargocpc.war!/ to C:\Users\Stefan\AppData\Local\Temp\jetty-0.0.0.0-8080-cargocpc.war-_cargocpc-any-\webapp
2013-12-04 14:29:42.052:INFO:oejsh.ContextHandler:started o.e.j.w.WebAppContext{/cargocpc,file:/C:/Users/Stefan/AppData/Local/Temp/jetty-0.0.0.0-8080-cargocpc.war-_cargocpc-any-/webapp/},C:\Users\Stefan\Dropbox\Studium\TUM\IDP\repo\backend\backend\target\cargo\configurations\jetty7x\cargocpc.war
2013-12-04 14:29:42.108:INFO:oejs.AbstractConnector:Started SelectChannelConnector@0.0.0.0:8080
and here is my used code:
package de.tum.fml.idp.backend.rest;
import java.util.List;
import javax.ws.rs.GET;
import javax.ws.rs.POST;
import javax.ws.rs.Path;
import javax.ws.rs.PathParam;
import de.tum.fml.idp.backend.rest.interfaces.PlayerManagment;
import de.tum.fml.idp.gamelog.backend.beans.Player;
@Path("/players")
public class PlayerWebService implements PlayerManagment {
@Override
@GET
public Player createUser() {
// TODO Auto-generated method stub
return new Player();
}
@Override
@POST
public Player updatePlayer(Player player) {
// TODO Auto-generated method stub
return new Player();
}
@Override
@GET
@Path("/getPlayer/{param}")
public Player getPlayer(@PathParam("param") int id) {
// TODO Auto-generated method stub
Player bla = new Player();
bla.setId(-1);
return bla;
}
@Override
@GET
public List<Player> getPlayers() {
// TODO Auto-generated method stub
return null;
}
@Override
@GET
public List<Integer> getPlayerIDs() {
// TODO Auto-generated method stub
return null;
}
}
and the Player class.
package de.tum.fml.idp.gamelog.backend.beans;
import java.util.ArrayList;
import java.util.List;
import javax.persistence.GeneratedValue;
import javax.persistence.Id;
import javax.persistence.OneToMany;
import javax.xml.bind.annotation.XmlRootElement;
import org.hibernate.annotations.Entity;
//@XmlRootElement
public class Player {
// @Id
// @GeneratedValue
private int id;
private String name;
private String password;
Avatar avatar;
private PlayerProperties properties;
private int tempId;
private int availablePropertyPoints;
private int totalPropertyPoints;
// @OneToMany
private ArrayList<AchievedAchievment> achievments;
public int getId() {
return id;
}
public void setId(int id) {
this.id = id;
}
public String getName() {
return name;
}
public void setName(String string) {
this.name = string;
}
public String getPassword() {
return password;
}
public void setPassword(String password) {
this.password = password;
}
public Avatar getAvatar() {
return avatar;
}
public void setAvatar(Avatar avatar) {
this.avatar = avatar;
}
public PlayerProperties getProperties() {
return properties;
}
public void setProperties(PlayerProperties properties) {
this.properties = properties;
}
public int getTempId() {
return tempId;
}
public void setTempId(int tempId) {
this.tempId = tempId;
}
public int getAvailablePropertyPoints() {
return availablePropertyPoints;
}
public void setAvailablePropertyPoints(int availablePropertyPoints) {
this.availablePropertyPoints = availablePropertyPoints;
}
public int getTotalPropertyPoints() {
return totalPropertyPoints;
}
public void setTotalPropertyPoints(int totalPropertyPoints) {
this.totalPropertyPoints = totalPropertyPoints;
}
public List<AchievedAchievment> getAchievments() {
if(achievments == null)
achievments = new ArrayList<AchievedAchievment>();
return achievments;
}
public void setAchievments(ArrayList<AchievedAchievment> achievments) {
this.achievments = achievments;
}
public void addAchievment(AchievedAchievment aa1) {
if(achievments == null)
achievments = new ArrayList<AchievedAchievment>();
if(aa1.getPlayer() != this)
throw new RuntimeException("Player: Achievment was already given to another user");
else
achievments.add(aa1);
}
}
has anyone an idea why this isn't working? tried already commenting almost everything out, several different maven dependencies, but it will not start working.
"toy examples" are working fine... :-/
i hope you can help me,
kr,
解决方案 The error messages are telling you what is wrong (you have to look for lines starting with SEVERE):
SEVERE: Producing media type conflict. The resource methods public java.util.List de.tum.fml.idp.backend.rest.PlayerWebService.getPlayerIDs() and public de.tum.fml.idp.gamelog.backend.beans.Player de.tum.fml.idp.backend.rest.PlayerWebService.createUser() can produce the same media type
SEVERE: Producing media type conflict. The resource methods public java.util.List de.tum.fml.idp.backend.rest.PlayerWebService.getPlayers() and public de.tum.fml.idp.gamelog.backend.beans.Player de.tum.fml.idp.backend.rest.PlayerWebService.createUser() can produce the same media type
It means you have multiple GET endpoints for the same path (defined in the class' annotation @Path("/players")), producing the same media type:
@GET
public List<Player> getPlayers()
@GET
public Player createUser()
@GET
public List<Integer> getPlayerIDs()
Jersey can't tell which one you want to call when sending a GET request to /players. You need to define separate paths for some of those endpoints.
If your intention actually was to let them have the same path, you would need to add @Produces annotations with different media types, so Jersey can choose the right method based on the Accept header. In case of request with a request body, you can also use the @Consumes annotation. Otherwise you need to add @Path annotations or change the request types of your methods, to avoid this conflict.
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