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使用Java在eclipse中創建的Jersey Tomcat Web服務器的404錯誤

[英]404 Error for a Jersey Tomcat web server created in eclipse with java

 原文  2018-11-30 11:55:11  9   2    java/ rest/ web/ server/ eclipse-wtp

問題描述

我從動態Web項目開始創建了服務器。 當我通過鍵入請求 

http://localhost:8080/restserver/myserver

要么 

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

進入我的網絡瀏覽器的搜索欄中，我收到響應 

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

我不知道我的服務器程序需要更改什么。 我一直在按照本教程來設置服務器，但看起來他們沒有比我更多的東西了。

我對我的請求的預期答復是

在此處輸入圖片說明

我已經嘗試了幾乎所有東西。 刪除並重新安裝eclipse和tomcat，刪除〜/ .m2 / repository文件夾。 日志文件基本上看起來像這樣 ， 

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凸輪從哪里來，剛看到了這個）

所以我想這可能是因為第三欄中的-未對請求進行身份驗證？ 我也不了解catalina.properties文件 ，但是我遵循了這些說明，但沒有幫助。 我還閱讀了一些我不太了解的關於代理的內容，因為我不知道如何禁用代理。

RestServer / pom.xml的 

<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資源/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>";
    }
}

我當前的文件目錄

在此處輸入圖片說明

在此處輸入圖片說明

更新

我變了 

  <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>

現在，當我訪問http：// localhost：8080 / RestServer / serv / myserver時 

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>

2 個解決方案

解決方案1
 1 已采納  2018-12-04 06:29:21

您需要在映射中使用Jersey控制器com.sun.jersey.spi.container.servlet.ServletContainer並指定資源路徑 

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

並為類javax.xml.bind.JAXBContext添加依賴項 

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

關於Web模塊版本4，我能夠運行該應用程序。 我正在使用Java 8和Tomcat 9。

在此處輸入圖片說明

如果您需要幫助，請發表評論

解決方案2
 1  2019-04-04 12:49:45

盡管構建成功，但最初我沒有HTTP狀態404-未找到。 我遵循了之前的所有建議，並且在控制台中遇到了類似的錯誤。 遵循標記錯誤和警告后，進行了搜索。

第一步：

我去了項目右鍵單擊->屬性->部署程序集，並添加了Maven Depencencies Libray，此后又出現了嚴重警告。

第二步：似乎需要pom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

對於所有這些一起工作的框架，我的主要問題是eclipse中的設置。 您需要能夠安裝並連接兼容的資源。 例如，如上所述，我還設法正確運行了Dynamic Web Project 4.0

第三步：

我注意到您提到了這一點 

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

在這種情況下，提及source版本和target版本意味着您的整個項目將以Java 1.6兼容性進行編譯。 也許這就是為什么您不能將其作為Dynamic Web Project 4.0運行的原因，因為它需要Java 1.8及更高版本。 在我的場景中，我正確設置了所有首選項，然后執行該pom並將其所有內容還原為Java 1.6，因此我將其刪除並正確執行

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