Java Servlet jersey serlvet的HTTP状态500-Servlet.init（）引发异常？_Java_Tomcat_Servlets_Jersey_Jax Rs

Java Servlet jersey serlvet的HTTP状态500-Servlet.init（）引发异常？

java tomcat servlets jersey

Java Servlet jersey serlvet的HTTP状态500-Servlet.init（）引发异常？,java,tomcat,servlets,jersey,jax-rs,Java,Tomcat,Servlets,Jersey,Jax Rs,我正在尝试使用Jersey和Maven和Tomcat创建一个Web服务RESTFUL。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我该怎么解决呢 URL 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

我正在尝试使用Jersey和Maven和Tomcat创建一个Web服务RESTFUL。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

我该怎么解决呢

URL

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-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>

<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>


蕨类植物
index.html
index.htm
index.jsp
default.html
default.htm
default.jsp
泽西塞尔维特酒店
com.sun.jersey.spi.container.servlet.ServletContainer
com.sun.jersey.config.property.packages
br.com.ferpa.ws
1.
泽西塞尔维特酒店
/ws/*

pom.xml

<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>

<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>


爪哇
javaeewebapi
7
假如
asm
asm
3.3.1
泽西岛
球衣核心
1.19
泽西岛
泽西服务器
1.19
javax.ws.rs
jsr311 api
1.1.1
泽西岛
泽西json
1.19
泽西岛
球衣束
1.14
org.json
json
20141113
玻璃鱼
javax.json
1.0.4
com.googlecode.json-simple
简单json
1.1
com.sun.jersey.contribs
泽西多部分
1.8

例外情况

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)

异常
servlet的javax.servlet.ServletException:servlet.init（）引发异常
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）
run（Thread.java:745）
根本原因
java.lang.IllegalAccessError：试图访问方法com.sun.jersey.core.reflection.ReflectionHelper.getContextClassLoader（）Ljava/lang/ClassLoader；来自com.sun.jersey.spi.scanning.AnnotationScannerListener类
com.sun.jersey.spi.scanning.AnnotationScannerListener.（AnnotationScannerListener.java:92）
com.sun.jersey.spi.scanning.PathProviderScannerListener。（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.（PackagesResourceConfig.java:78）
com.sun.jersey.api.core.PackagesResourceConfig.（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）
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）
run（Thread.java:745）

在部署程序集中添加Maven依赖项，或者只是清理并构建项目

只需右键单击该项目

性质

部署组件

加

它将打开另一个窗口，在该窗口中进行选择

Java构建路径条目

单击下一步

我在你的代码中看到一个问题

@Path("/") <--- here
public class Cliente {

    @GET
    @Path("/cliente")

但是，您正在访问

 http://localhost:8080/FerpaWS/ws/cliente

因此，要么删除了

@Path（“/”

，要么将某个东西命名为

@Path（“/app”）

。所以，最后url是

http://localhost:8080/FerpaWS/ws/app/cliente

该错误意味着您正在混合Jersey 1.x和2.x。

org.glassfish.jersey