[英]HTTP Status 500 - Servlet.init() for servlet jersey-serlvet threw exception?
I'm trying create a Web Service RESTFUL using Jersey with Maven and Tomcat. 我正在尝试使用带有Maven和Tomcat的Jersey创建Web服务RESTFUL。 When I do execute my webservice, does throws some exceptions and doesn't works.
当我执行我的Web服务时,确实会抛出一些异常并且不起作用。
How could I solve it ? 我该如何解决?
URL 网址
http://localhost:8080/FerpaWS/ws/cliente http:// localhost:8080 / FerpaWS / ws / cliente
Service 服务
package br.com.ferpa.ws;
import javax.ws.rs.Consumes;
import javax.ws.rs.GET;
import javax.ws.rs.Path;
import javax.ws.rs.core.MediaType;
import javax.ws.rs.core.Response;
import org.json.JSONObject;
@Path("/")
public class Cliente {
@GET
@Path("/cliente")
@Consumes(MediaType.APPLICATION_JSON)
public Response getNome(){
JSONObject obj = new JSONObject();
obj.put("nome", "fernando paiva");
return Response.status(200).entity(obj.toString()).build();
}
}
web.xml web.xml中
<web-app xmlns="http://xmlns.jcp.org/xml/ns/javaee"
xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
xsi:schemaLocation="http://xmlns.jcp.org/xml/ns/javaee http://xmlns.jcp.org/xml/ns/javaee/web-app_3_1.xsd"
version="3.1">
<display-name>FerpaWS</display-name>
<welcome-file-list>
<welcome-file>index.html</welcome-file>
<welcome-file>index.htm</welcome-file>
<welcome-file>index.jsp</welcome-file>
<welcome-file>default.html</welcome-file>
<welcome-file>default.htm</welcome-file>
<welcome-file>default.jsp</welcome-file>
</welcome-file-list>
<servlet>
<servlet-name>jersey-serlvet</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>br.com.ferpa.ws</param-value>
</init-param>
<load-on-startup>1</load-on-startup>
</servlet>
<servlet-mapping>
<servlet-name>jersey-serlvet</servlet-name>
<url-pattern>/ws/*</url-pattern>
</servlet-mapping>
</web-app>
pom.xml 的pom.xml
<dependencies>
<dependency>
<groupId>javax</groupId>
<artifactId>javaee-web-api</artifactId>
<version>7.0</version>
<scope>provided</scope>
</dependency>
<!-- WS -->
<dependency>
<groupId>asm</groupId>
<artifactId>asm</artifactId>
<version>3.3.1</version>
</dependency>
<dependency>
<groupId>com.sun.jersey</groupId>
<artifactId>jersey-core</artifactId>
<version>1.19</version>
</dependency>
<dependency>
<groupId>com.sun.jersey</groupId>
<artifactId>jersey-server</artifactId>
<version>1.19</version>
</dependency>
<dependency>
<groupId>javax.ws.rs</groupId>
<artifactId>jsr311-api</artifactId>
<version>1.1.1</version>
</dependency>
<dependency>
<groupId>com.sun.jersey</groupId>
<artifactId>jersey-json</artifactId>
<version>1.19</version>
</dependency>
<dependency>
<groupId>com.sun.jersey</groupId>
<artifactId>jersey-bundle</artifactId>
<version>1.14</version>
</dependency>
<dependency>
<groupId>org.json</groupId>
<artifactId>json</artifactId>
<version>20141113</version>
</dependency>
<dependency>
<groupId>org.glassfish</groupId>
<artifactId>javax.json</artifactId>
<version>1.0.4</version>
</dependency>
<dependency>
<groupId>com.googlecode.json-simple</groupId>
<artifactId>json-simple</artifactId>
<version>1.1</version>
</dependency>
<dependency>
<groupId>com.sun.jersey.contribs</groupId>
<artifactId>jersey-multipart</artifactId>
<version>1.8</version>
</dependency>
</dependencies>
Exception 例外
exception
javax.servlet.ServletException: Servlet.init() for servlet jersey-serlvet threw exception
org.apache.catalina.authenticator.AuthenticatorBase.invoke(AuthenticatorBase.java:501)
org.apache.catalina.valves.ErrorReportValve.invoke(ErrorReportValve.java:79)
org.apache.catalina.valves.AbstractAccessLogValve.invoke(AbstractAccessLogValve.java:610)
org.apache.catalina.connector.CoyoteAdapter.service(CoyoteAdapter.java:516)
org.apache.coyote.http11.AbstractHttp11Processor.process(AbstractHttp11Processor.java:1086)
org.apache.coyote.AbstractProtocol$AbstractConnectionHandler.process(AbstractProtocol.java:659)
org.apache.coyote.http11.Http11NioProtocol$Http11ConnectionHandler.process(Http11NioProtocol.java:223)
org.apache.tomcat.util.net.NioEndpoint$SocketProcessor.doRun(NioEndpoint.java:1558)
org.apache.tomcat.util.net.NioEndpoint$SocketProcessor.run(NioEndpoint.java:1515)
java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1142)
java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:617)
org.apache.tomcat.util.threads.TaskThread$WrappingRunnable.run(TaskThread.java:61)
java.lang.Thread.run(Thread.java:745)
root cause
java.lang.IllegalAccessError: tried to access method com.sun.jersey.core.reflection.ReflectionHelper.getContextClassLoader()Ljava/lang/ClassLoader; from class com.sun.jersey.spi.scanning.AnnotationScannerListener
com.sun.jersey.spi.scanning.AnnotationScannerListener.<init>(AnnotationScannerListener.java:92)
com.sun.jersey.spi.scanning.PathProviderScannerListener.<init>(PathProviderScannerListener.java:59)
com.sun.jersey.api.core.ScanningResourceConfig.init(ScanningResourceConfig.java:79)
com.sun.jersey.api.core.PackagesResourceConfig.init(PackagesResourceConfig.java:104)
com.sun.jersey.api.core.PackagesResourceConfig.<init>(PackagesResourceConfig.java:78)
com.sun.jersey.api.core.PackagesResourceConfig.<init>(PackagesResourceConfig.java:89)
com.sun.jersey.spi.container.servlet.WebComponent.createResourceConfig(WebComponent.java:700)
com.sun.jersey.spi.container.servlet.WebComponent.createResourceConfig(WebComponent.java:678)
com.sun.jersey.spi.container.servlet.WebComponent.init(WebComponent.java:203)
com.sun.jersey.spi.container.servlet.ServletContainer.init(ServletContainer.java:374)
com.sun.jersey.spi.container.servlet.ServletContainer.init(ServletContainer.java:557)
javax.servlet.GenericServlet.init(GenericServlet.java:158)
org.apache.catalina.authenticator.AuthenticatorBase.invoke(AuthenticatorBase.java:501)
org.apache.catalina.valves.ErrorReportValve.invoke(ErrorReportValve.java:79)
org.apache.catalina.valves.AbstractAccessLogValve.invoke(AbstractAccessLogValve.java:610)
org.apache.catalina.connector.CoyoteAdapter.service(CoyoteAdapter.java:516)
org.apache.coyote.http11.AbstractHttp11Processor.process(AbstractHttp11Processor.java:1086)
org.apache.coyote.AbstractProtocol$AbstractConnectionHandler.process(AbstractProtocol.java:659)
org.apache.coyote.http11.Http11NioProtocol$Http11ConnectionHandler.process(Http11NioProtocol.java:223)
org.apache.tomcat.util.net.NioEndpoint$SocketProcessor.doRun(NioEndpoint.java:1558)
org.apache.tomcat.util.net.NioEndpoint$SocketProcessor.run(NioEndpoint.java:1515)
java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1142)
java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:617)
org.apache.tomcat.util.threads.TaskThread$WrappingRunnable.run(TaskThread.java:61)
java.lang.Thread.run(Thread.java:745)
That error means you are mixing Jersey 1.x and 2.x. 该错误意味着您正在混合Jersey 1.x和2.x。 Both are totally incompatible, make sure that all your dependencies are of the same version.
两者都是完全不兼容的,请确保所有依赖项都具有相同的版本。
com.sun.jersey
is for Jersey 1.x. 适用于Jersey1.x。 It should not be used.
不应使用。
org.glassfish.jersey
is Jersey 2.x and should be used whenever possible. 是Jersey 2.x,应尽可能使用。
I see one issue in your code 我在您的代码中看到一个问题
@Path("/") <--- here
public class Cliente {
@GET
@Path("/cliente")
As per your code, the url to access getNome
method would be 根据您的代码,访问
getNome
方法的URL将是
http://localhost:8080/FerpaWS/ws//cliente
But, you are accessing 但是,您正在访问
http://localhost:8080/FerpaWS/ws/cliente
So, either you removed @Path("/")
or name something @Path("/app")
. 因此,您删除了
@Path("/")
或命名了@Path("/app")
。 So, finally url would be 因此,最终url将是
http://localhost:8080/FerpaWS/ws/app/cliente
add the Maven dependencies in the Deployment Assembly or just clean and build you project. 在Deployment Assembly中添加Maven依赖项,或者只是清理并构建项目。
just right click on the project
只需右键单击该项目
Properties 属性
Deployment Assembly
部署组装
Add
加
It will open other window, in that choose
它将打开其他窗口,在该窗口中选择
Java Build Path Entries
Java构建路径条目
click Next
点击下一步
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