404使用java在eclipse中创建的Jersey Tomcat Web服务器出错

问题描述 投票：1回答：2

我从动态Web项目开始创建了一个服务器。当我通过输入提出请求时

http://localhost:8080/restserver/myserver

要么

http://localhost:8080/restserver/myserver/myserver

进入我的网络浏览器的搜索栏，我收到了回复

HTTP Status 404 – Not Found

Type Status Report

Message /restserver/src/demo/demo

Description The origin server did not find a current representation for the target resource or is not willing to disclose that one exists.
Apache Tomcat/9.0.13

我不知道我需要用我的服务器程序改变什么。我一直在关注this tutorial设置我的服务器，看起来他们没有比我更多的东西。

我对我的请求的预期回应是

enter image description here

我已经尝试了一切。删除并重新安装eclipse和tomcat，删除我的〜/ .m2 / repository文件夹。日志文件看起来基本上是like this，

127.0.0.1 - - [02/Dec/2018:13:09:20 -0600] "GET / HTTP/1.1" 404 1074
0:0:0:0:0:0:0:1 - - [02/Dec/2018:13:11:13 -0600] "GET /RestServer HTTP/1.1" 302 -
0:0:0:0:0:0:0:1 - - [02/Dec/2018:13:11:13 -0600] "GET /RestServer/ HTTP/1.1" 404 1089
0:0:0:0:0:0:0:1 - - [02/Dec/2018:13:11:14 -0600] "GET /favicon.ico HTTP/1.1" 404 1085
0:0:0:0:0:0:0:1 - - [02/Dec/2018:13:11:19 -0600] "GET /RestServer/myserver HTTP/1.1" 404 1097
0:0:0:0:0:0:0:1 - - [02/Dec/2018:13:11:19 -0600] "GET /favicon.ico HTTP/1.1" 404 1085
0:0:0:0:0:0:0:1 - - [02/Dec/2018:13:11:24 -0600] "GET /RestServer/myserver/myserver HTTP/1.1" 404 1110
0:0:0:0:0:0:0:1 - - [02/Dec/2018:13:11:24 -0600] "GET /favicon.ico HTTP/1.1" 404 1085

（我知道302凸轮的位置，只看到了这个）

所以我认为可能是由于 - 在第三列中的请求没有被认证？我也不理解catalina.properties file，但我按照这些说明进行操作并没有帮助。我还阅读了一些我不太了解的代理问题，因为我无法弄清楚如何禁用代理。

RestServer/pom.xml

<project xmlns="http://maven.apache.org/POM/4.0.0" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
  <modelVersion>4.0.0</modelVersion>
  <groupId>RestServer</groupId>
  <artifactId>RestServer</artifactId>
  <version>0.0.1-SNAPSHOT</version>
  <packaging>war</packaging>
  <build>
    <sourceDirectory>src</sourceDirectory>
    <plugins>
      <plugin>
        <artifactId>maven-compiler-plugin</artifactId>
        <version>3.8.0</version>
        <configuration>
          <source>1.6</source>
          <target>1.6</target>
        </configuration>
      </plugin>
      <plugin>
        <artifactId>maven-war-plugin</artifactId>
        <version>3.2.1</version>
        <configuration>
          <warSourceDirectory>WebContent</warSourceDirectory>
        </configuration>
      </plugin>
    </plugins>
  </build>
  <dependencies>
        <dependency>
            <groupId>asm</groupId>
            <artifactId>asm</artifactId>
            <version>3.3.1</version>
        </dependency>
        <dependency>
            <groupId>com.sun.jersey</groupId>
            <artifactId>jersey-bundle</artifactId>
            <version>1.19.4</version>
        </dependency>
        <dependency>
            <groupId>org.json</groupId>
            <artifactId>json</artifactId>
            <version>20170516</version>
        </dependency>
        <dependency>
            <groupId>com.sun.jersey</groupId>
            <artifactId>jersey-server</artifactId>
            <version>1.19.4</version>
        </dependency>
        <dependency>
            <groupId>com.sun.jersey</groupId>
            <artifactId>jersey-core</artifactId>
            <version>1.19.4</version>
        </dependency>
    </dependencies>
</project>

RestServer / WEB-INF / web.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" xsi:schemaLocation="http://java.sun.com/xml/ns/javaee http://java.sun.com/xml/ns/javaee/web-app_3_0.xsd" id="WebApp_ID" version="3.0">
  <display-name>RestServer</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>Faces Servlet</servlet-name>
    <servlet-class>javax.faces.webapp.FacesServlet</servlet-class>
    <load-on-startup>1</load-on-startup>
  </servlet>
  <servlet-mapping>
    <servlet-name>Faces Servlet</servlet-name>
    <url-pattern>/serv/*</url-pattern>
  </servlet-mapping>
</web-app>

RestServer/Java Resources/src/serverPackage/MyServer.java

package serverPackage;

import javax.ws.rs.GET;
import javax.ws.rs.Path;
import javax.ws.rs.PathParam;
import javax.ws.rs.Produces;

@Path("/myserver")
public class MyServer {
    @GET
    @Produces("application/xml")
    public String convertCtoF() {

        Double fahrenheit;
        Double celsius = 36.8;
        fahrenheit = ((celsius * 9) / 5) + 32;

        String result = "@Produces(\"application/xml\") Output: \n\nC to F Converter Output: \n\n" + fahrenheit;
        return "<ctofservice>" + "<celsius>" + celsius + "</celsius>" + "<ctofoutput>" + result + "</ctofoutput>" + "</ctofservice>";
    }

    @Path("{c}")
    @GET
    @Produces("application/xml")
    public String convertCtoFfromInput(@PathParam("c") Double c) {
        Double fahrenheit;
        Double celsius = c;
        fahrenheit = ((celsius * 9) / 5) + 32;

        String result = "@Produces(\"application/xml\") Output: \n\nC to F Converter Output: \n\n" + fahrenheit;
        return "<ctofservice>" + "<celsius>" + celsius + "</celsius>" + "<ctofoutput>" + result + "</ctofoutput>" + "</ctofservice>";
    }
}

My current file directory

enter image description here

enter image description here

更新

我变了

  <servlet>
    <servlet-name>Faces Servlet</servlet-name>
    <servlet-class>javax.faces.webapp.FacesServlet</servlet-class>
    <load-on-startup>1</load-on-startup>
  </servlet>
  <servlet-mapping>
    <servlet-name>Faces Servlet</servlet-name>
    <url-pattern>/serv/*</url-pattern>
  </servlet-mapping>

至

<servlet>
    <servlet-name>Jersey Web Application</servlet-name>
    <servlet-class>com.sun.jersey.spi.container.servlet.ServletContainer</servlet-class>
    <load-on-startup>1</load-on-startup>
</servlet>
<servlet-mapping>
    <servlet-name>Jersey Web Application</servlet-name>
    <url-pattern>/serv/*</url-pattern>
</servlet-mapping>

现在，当我访问http://localhost:8080/RestServer/serv/myserver

I receive the error

HTTP Status 500 – Internal Server Error
Type Exception Report

Message Servlet.init() for servlet [Jersey Web Application] threw exception

Description The server encountered an unexpected condition that prevented it from fulfilling the request.

Exception

javax.servlet.ServletException: Servlet.init() for servlet [Jersey Web Application] threw exception
    org.apache.catalina.authenticator.AuthenticatorBase.invoke(AuthenticatorBase.java:490)
    org.apache.catalina.valves.ErrorReportValve.invoke(ErrorReportValve.java:92)
    org.apache.catalina.valves.AbstractAccessLogValve.invoke(AbstractAccessLogValve.java:668)
    org.apache.catalina.connector.CoyoteAdapter.service(CoyoteAdapter.java:343)
    org.apache.coyote.http11.Http11Processor.service(Http11Processor.java:408)
    org.apache.coyote.AbstractProcessorLight.process(AbstractProcessorLight.java:66)
    org.apache.coyote.AbstractProtocol$ConnectionHandler.process(AbstractProtocol.java:791)
    org.apache.tomcat.util.net.NioEndpoint$SocketProcessor.doRun(NioEndpoint.java:1417)
    org.apache.tomcat.util.net.SocketProcessorBase.run(SocketProcessorBase.java:49)
    java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1128)
    java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:628)
    org.apache.tomcat.util.threads.TaskThread$WrappingRunnable.run(TaskThread.java:61)
    java.base/java.lang.Thread.run(Thread.java:834)
Root Cause

java.lang.TypeNotPresentException: Type javax.xml.bind.JAXBContext not present
    java.base/sun.reflect.generics.factory.CoreReflectionFactory.makeNamedType(CoreReflectionFactory.java:117)
    java.base/sun.reflect.generics.visitor.Reifier.visitClassTypeSignature(Reifier.java:125)
    java.base/sun.reflect.generics.tree.ClassTypeSignature.accept(ClassTypeSignature.java:49)
    java.base/sun.reflect.generics.visitor.Reifier.reifyTypeArguments(Reifier.java:68)
    java.base/sun.reflect.generics.visitor.Reifier.visitClassTypeSignature(Reifier.java:138)
    java.base/sun.reflect.generics.tree.ClassTypeSignature.accept(ClassTypeSignature.java:49)
    java.base/sun.reflect.generics.repository.ClassRepository.computeSuperInterfaces(ClassRepository.java:117)
    java.base/sun.reflect.generics.repository.ClassRepository.getSuperInterfaces(ClassRepository.java:95)
    java.base/java.lang.Class.getGenericInterfaces(Class.java:1138)
    com.sun.jersey.core.reflection.ReflectionHelper.getClass(ReflectionHelper.java:629)
    com.sun.jersey.core.reflection.ReflectionHelper.getClass(ReflectionHelper.java:625)
    com.sun.jersey.core.spi.factory.ContextResolverFactory.getParameterizedType(ContextResolverFactory.java:202)
    com.sun.jersey.core.spi.factory.ContextResolverFactory.init(ContextResolverFactory.java:89)
    com.sun.jersey.server.impl.application.WebApplicationImpl._initiate(WebApplicationImpl.java:1332)
    com.sun.jersey.server.impl.application.WebApplicationImpl.access$700(WebApplicationImpl.java:180)
    com.sun.jersey.server.impl.application.WebApplicationImpl$13.f(WebApplicationImpl.java:799)
    com.sun.jersey.server.impl.application.WebApplicationImpl$13.f(WebApplicationImpl.java:795)
    com.sun.jersey.spi.inject.Errors.processWithErrors(Errors.java:193)
    com.sun.jersey.server.impl.application.WebApplicationImpl.initiate(WebApplicationImpl.java:795)
    com.sun.jersey.server.impl.application.WebApplicationImpl.initiate(WebApplicationImpl.java:790)
    com.sun.jersey.spi.container.servlet.ServletContainer.initiate(ServletContainer.java:509)
    com.sun.jersey.spi.container.servlet.ServletContainer$InternalWebComponent.initiate(ServletContainer.java:339)
    com.sun.jersey.spi.container.servlet.WebComponent.load(WebComponent.java:605)
    com.sun.jersey.spi.container.servlet.WebComponent.init(WebComponent.java:207)
    com.sun.jersey.spi.container.servlet.ServletContainer.init(ServletContainer.java:394)
    com.sun.jersey.spi.container.servlet.ServletContainer.init(ServletContainer.java:577)
    javax.servlet.GenericServlet.init(GenericServlet.java:158)
    org.apache.catalina.authenticator.AuthenticatorBase.invoke(AuthenticatorBase.java:490)
    org.apache.catalina.valves.ErrorReportValve.invoke(ErrorReportValve.java:92)
    org.apache.catalina.valves.AbstractAccessLogValve.invoke(AbstractAccessLogValve.java:668)
    org.apache.catalina.connector.CoyoteAdapter.service(CoyoteAdapter.java:343)
    org.apache.coyote.http11.Http11Processor.service(Http11Processor.java:408)
    org.apache.coyote.AbstractProcessorLight.process(AbstractProcessorLight.java:66)
    org.apache.coyote.AbstractProtocol$ConnectionHandler.process(AbstractProtocol.java:791)
    org.apache.tomcat.util.net.NioEndpoint$SocketProcessor.doRun(NioEndpoint.java:1417)
    org.apache.tomcat.util.net.SocketProcessorBase.run(SocketProcessorBase.java:49)
    java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1128)
    java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:628)
    org.apache.tomcat.util.threads.TaskThread$WrappingRunnable.run(TaskThread.java:61)
    java.base/java.lang.Thread.run(Thread.java:834)
Root Cause

java.lang.ClassNotFoundException: javax.xml.bind.JAXBContext
    org.apache.catalina.loader.WebappClassLoaderBase.loadClass(WebappClassLoaderBase.java:1328)
    org.apache.catalina.loader.WebappClassLoaderBase.loadClass(WebappClassLoaderBase.java:1157)
    java.base/java.lang.Class.forName0(Native Method)
    java.base/java.lang.Class.forName(Class.java:398)
    java.base/sun.reflect.generics.factory.CoreReflectionFactory.makeNamedType(CoreReflectionFactory.java:114)
    java.base/sun.reflect.generics.visitor.Reifier.visitClassTypeSignature(Reifier.java:125)
    java.base/sun.reflect.generics.tree.ClassTypeSignature.accept(ClassTypeSignature.java:49)
    java.base/sun.reflect.generics.visitor.Reifier.reifyTypeArguments(Reifier.java:68)
    java.base/sun.reflect.generics.visitor.Reifier.visitClassTypeSignature(Reifier.java:138)
    java.base/sun.reflect.generics.tree.ClassTypeSignature.accept(ClassTypeSignature.java:49)
    java.base/sun.reflect.generics.repository.ClassRepository.computeSuperInterfaces(ClassRepository.java:117)
    java.base/sun.reflect.generics.repository.ClassRepository.getSuperInterfaces(ClassRepository.java:95)
    java.base/java.lang.Class.getGenericInterfaces(Class.java:1138)
    com.sun.jersey.core.reflection.ReflectionHelper.getClass(ReflectionHelper.java:629)
    com.sun.jersey.core.reflection.ReflectionHelper.getClass(ReflectionHelper.java:625)
    com.sun.jersey.core.spi.factory.ContextResolverFactory.getParameterizedType(ContextResolverFactory.java:202)
    com.sun.jersey.core.spi.factory.ContextResolverFactory.init(ContextResolverFactory.java:89)
    com.sun.jersey.server.impl.application.WebApplicationImpl._initiate(WebApplicationImpl.java:1332)
    com.sun.jersey.server.impl.application.WebApplicationImpl.access$700(WebApplicationImpl.java:180)
    com.sun.jersey.server.impl.application.WebApplicationImpl$13.f(WebApplicationImpl.java:799)
    com.sun.jersey.server.impl.application.WebApplicationImpl$13.f(WebApplicationImpl.java:795)
    com.sun.jersey.spi.inject.Errors.processWithErrors(Errors.java:193)
    com.sun.jersey.server.impl.application.WebApplicationImpl.initiate(WebApplicationImpl.java:795)
    com.sun.jersey.server.impl.application.WebApplicationImpl.initiate(WebApplicationImpl.java:790)
    com.sun.jersey.spi.container.servlet.ServletContainer.initiate(ServletContainer.java:509)
    com.sun.jersey.spi.container.servlet.ServletContainer$InternalWebComponent.initiate(ServletContainer.java:339)
    com.sun.jersey.spi.container.servlet.WebComponent.load(WebComponent.java:605)
    com.sun.jersey.spi.container.servlet.WebComponent.init(WebComponent.java:207)
    com.sun.jersey.spi.container.servlet.ServletContainer.init(ServletContainer.java:394)
    com.sun.jersey.spi.container.servlet.ServletContainer.init(ServletContainer.java:577)
    javax.servlet.GenericServlet.init(GenericServlet.java:158)
    org.apache.catalina.authenticator.AuthenticatorBase.invoke(AuthenticatorBase.java:490)
    org.apache.catalina.valves.ErrorReportValve.invoke(ErrorReportValve.java:92)
    org.apache.catalina.valves.AbstractAccessLogValve.invoke(AbstractAccessLogValve.java:668)
    org.apache.catalina.connector.CoyoteAdapter.service(CoyoteAdapter.java:343)
    org.apache.coyote.http11.Http11Processor.service(Http11Processor.java:408)
    org.apache.coyote.AbstractProcessorLight.process(AbstractProcessorLight.java:66)
    org.apache.coyote.AbstractProtocol$ConnectionHandler.process(AbstractProtocol.java:791)
    org.apache.tomcat.util.net.NioEndpoint$SocketProcessor.doRun(NioEndpoint.java:1417)
    org.apache.tomcat.util.net.SocketProcessorBase.run(SocketProcessorBase.java:49)
    java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1128)
    java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:628)
    org.apache.tomcat.util.threads.TaskThread$WrappingRunnable.run(TaskThread.java:61)
    java.base/java.lang.Thread.run(Thread.java:834)
Note The full stack trace of the root cause is available in the server logs.

更新了local_host_accesslog

127.0.0.1 - - [03/Dec/2018:01:34:47 -0600] "GET / HTTP/1.1" 404 1074
0:0:0:0:0:0:0:1 - - [03/Dec/2018:01:39:55 -0600] "GET /myserver HTTP/1.1" 404 1082
0:0:0:0:0:0:0:1 - - [03/Dec/2018:01:39:57 -0600] "GET /favicon.ico HTTP/1.1" 404 1085
0:0:0:0:0:0:0:1 - - [03/Dec/2018:01:40:15 -0600] "GET /RestServer/myserver HTTP/1.1" 404 1097
0:0:0:0:0:0:0:1 - - [03/Dec/2018:01:40:21 -0600] "GET /RestServer/serv/myserver HTTP/1.1" 500 10064

更新了pom.xml

<project xmlns="http://maven.apache.org/POM/4.0.0" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
  <modelVersion>4.0.0</modelVersion>
  <groupId>RestServer</groupId>
  <artifactId>RestServer</artifactId>
  <version>0.0.1-SNAPSHOT</version>
  <packaging>war</packaging>
  <build>
    <sourceDirectory>src</sourceDirectory>
    <plugins>
      <plugin>
        <artifactId>maven-compiler-plugin</artifactId>
        <version>3.8.0</version>
        <configuration>
          <source>1.6</source>
          <target>1.6</target>
        </configuration>
      </plugin>
      <plugin>
        <artifactId>maven-war-plugin</artifactId>
        <version>3.2.1</version>
        <configuration>
          <warSourceDirectory>WebContent</warSourceDirectory>
        </configuration>
      </plugin>

    </plugins>
  </build>
  <dependencies>
        <dependency>
            <groupId>asm</groupId>
            <artifactId>asm</artifactId>
            <version>3.3.1</version>
        </dependency>
        <dependency>
            <groupId>com.sun.jersey</groupId>
            <artifactId>jersey-bundle</artifactId>
            <version>1.19.4</version>
        </dependency>
        <dependency>
            <groupId>org.json</groupId>
            <artifactId>json</artifactId>
            <version>20170516</version>
        </dependency>
        <dependency>
            <groupId>com.sun.jersey</groupId>
            <artifactId>jersey-server</artifactId>
            <version>1.19.4</version>
        </dependency>
        <dependency>
            <groupId>com.sun.jersey</groupId>
            <artifactId>jersey-core</artifactId>
            <version>1.19.4</version>
        </dependency>
        <dependency>
            <groupId>javax.xml.bind</groupId>
            <artifactId>jaxb-api</artifactId>
            <version>2.2.6</version>
        </dependency>
        <dependency>
            <groupId>com.googlecode.json-simple</groupId>
            <artifactId>json-simple</artifactId>
            <version>1.1</version>
        </dependency>
        <dependency>
            <groupId>org.springframework</groupId>
            <artifactId>spring-web</artifactId>
            <version>3.0.4.RELEASE</version>
        </dependency>
        <dependency>
            <groupId>javax.activation</groupId>
            <artifactId>activation</artifactId>
            <version>1.1.1</version>
        </dependency>
    </dependencies>
</project>
java rest web server eclipse-wtp
2个回答
1
投票

您需要在映射中使用Jersey控制器com.sun.jersey.spi.container.servlet.ServletContainer并指定资源路径

<init-param> 
   <param-name>com.sun.jersey.config.property.packages</param-name> 
   <param-value>com.resources</param-value>  <!--comma separated packages-->
</init-param>

并为类javax.xml.bind.JAXBContext添加依赖项

<dependency> 
   <groupId>javax.xml.bind</groupId> 
   <artifactId>jaxb-api</artifactId> 
   <version>2.2.6</version> 
</dependency>

关于Web模块版本4，我能够运行该应用程序。我使用的是java 8和tomcat 9。

enter image description here

如果您需要帮助，请发表评论

1
投票

虽然构建是成功的，但我最初的HTTP状态404 - 未找到。我遵循了之前的所有建议，我在控制台中遇到了类似的错误。在跟踪标记错误和警告并搜索了一下之后。

第一步：

我去项目右键单击 - >属性 - >部署程序集，然后我添加了Maven依赖项库，之后又出现了另一个严重警告。

第二步：似乎需要pom的依赖才能完美地工作

<dependency>
    <groupId>com.sun.xml.bind</groupId>
    <artifactId>jaxb-impl</artifactId>
    <version>2.1.2</version>
</dependency>

就在jaxb-api之前

所有这些框架协同工作的主要问题是eclipse中的设置。您需要能够安装和连接兼容的资源。例如，我还设法像上面提到的那样正确运行Dynamic Web Project 4.0

第三步：

我注意到你提到了这一点

<artifactId>maven-compiler-plugin</artifactId>
<version>3.8.0</version>
<configuration>
  <source>1.6</source>
  <target>1.6</target>
</configuration>

在这种情况下，提及source和target版本意味着您的整个项目将以Java 1.6兼容性编译。也许这就是为什么你不能将它作为Dynamic Web Project 4.0运行的原因，因为它需要Java 1.8和更新版本。在我的场景中，我正确设置了所有首选项，然后执行了该pom，并在选项中将所有内容还原为Java 1.6，因此我只是将其删除并正确执行

最新问题
© www.soinside.com 2019 - 2024. All rights reserved.