spring - 集成jersey+spring+hibernate的基础webapp

论坛中的类似问题没有答案，因为我是 Restful Web 服务的菜鸟，所以不得不提出这个问题。

一个 mavenized 动态 Web 应用程序，以 JASON 格式从数据库中获取数据。

数据库:apache derby 1.1
eclipse :朱诺
JDK:1.8
Spring :4.2.3
hibernate :5.0
Jersey :2.19
Apache tomcat v8.0
使用的设计模式:没有，因为它是一个非常基本的集成

设计

模型类模仿数据库(Spring bean)和 JSon 模型中的表。
DaoImpl 类--> 一个具有依赖性的 spring bean，使用 spring 支持类 hibernate 。
contextWrapper 类 --> 使用 @Provider 注册，用于调用 spring context 并从 DaoImpl 类中获取结果
RestService 类--> 处理来自 contextWrapper 类的剩余资源请求获取结果

编译和部署良好，服务器日志中没有错误，但是在访问资源时从 Jersey 抛出 NullpointerException。根据日志，Spring 上下文加载没有问题。

Tomcat 控制台日志

Dec 01, 2015 12:11:54 AM org.apache.tomcat.util.digester.SetPropertiesRule begin
WARNING: [SetPropertiesRule]{Server/Service/Engine/Host/Context} Setting property 'source' to 'org.eclipse.jst.jee.server:JerseySpringHibernate' did not find a matching property.
Dec 01, 2015 12:11:54 AM org.apache.catalina.startup.VersionLoggerListener log
INFO: Server version:        Apache Tomcat/8.0.24
Dec 01, 2015 12:11:54 AM org.apache.catalina.startup.VersionLoggerListener log
INFO: Server built:          Jul 1 2015 20:19:55 UTC
Dec 01, 2015 12:11:54 AM org.apache.catalina.startup.VersionLoggerListener log
INFO: Server number:         8.0.24.0
Dec 01, 2015 12:11:54 AM org.apache.catalina.startup.VersionLoggerListener log
INFO: OS Name:               Windows 7
Dec 01, 2015 12:11:54 AM org.apache.catalina.startup.VersionLoggerListener log
INFO: OS Version:            6.1
Dec 01, 2015 12:11:54 AM org.apache.catalina.startup.VersionLoggerListener log
INFO: Architecture:          x86
Dec 01, 2015 12:11:54 AM org.apache.catalina.startup.VersionLoggerListener log
INFO: Java Home:             C:\Program Files\Java\jre1.8.0_51
Dec 01, 2015 12:11:54 AM org.apache.catalina.startup.VersionLoggerListener log
INFO: JVM Version:           1.8.0_51-b16
Dec 01, 2015 12:11:54 AM org.apache.catalina.startup.VersionLoggerListener log
INFO: JVM Vendor:            Oracle Corporation
Dec 01, 2015 12:11:54 AM org.apache.catalina.startup.VersionLoggerListener log
INFO: CATALINA_BASE:         C:\integration\.metadata\.plugins\org.eclipse.wst.server.core\tmp0
Dec 01, 2015 12:11:54 AM org.apache.catalina.startup.VersionLoggerListener log
INFO: CATALINA_HOME:         C:\apache-tomcat-8.0.24-windows-x86\apache-tomcat-8.0.24
Dec 01, 2015 12:11:54 AM org.apache.catalina.startup.VersionLoggerListener log
INFO: Command line argument: -Dcatalina.base=C:\integration\.metadata\.plugins\org.eclipse.wst.server.core\tmp0
Dec 01, 2015 12:11:54 AM org.apache.catalina.startup.VersionLoggerListener log
INFO: Command line argument: -Dcatalina.home=C:\apache-tomcat-8.0.24-windows-x86\apache-tomcat-8.0.24
Dec 01, 2015 12:11:54 AM org.apache.catalina.startup.VersionLoggerListener log
INFO: Command line argument: -Dwtp.deploy=C:\integration\.metadata\.plugins\org.eclipse.wst.server.core\tmp0\wtpwebapps
Dec 01, 2015 12:11:54 AM org.apache.catalina.startup.VersionLoggerListener log
INFO: Command line argument: -Djava.endorsed.dirs=C:\apache-tomcat-8.0.24-windows-x86\apache-tomcat-8.0.24\endorsed
Dec 01, 2015 12:11:54 AM org.apache.catalina.startup.VersionLoggerListener log
INFO: Command line argument: -Dfile.encoding=Cp1252
Dec 01, 2015 12:11:54 AM org.apache.catalina.core.AprLifecycleListener lifecycleEvent
INFO: The APR based Apache Tomcat Native library which allows optimal performance in production environments was not found on the java.library.path: C:\Program Files\Java\jre1.8.0_51\bin;C:\Windows\Sun\Java\bin;C:\Windows\system32;C:\Windows;C:/Program Files/Java/jre1.8.0_51/bin/client;C:/Program Files/Java/jre1.8.0_51/bin;C:/Program Files/Java/jre1.8.0_51/lib/i386;C:\ProgramData\Oracle\Java\javapath;C:\Windows\system32;C:\Windows;C:\Windows\System32\Wbem;C:\Windows\System32\WindowsPowerShell\v1.0\;C:\db-derby-10.11.1.1-bin\db-derby\bin;C:\eclipse-jee-luna-SR1-win32\eclipse;;.
Dec 01, 2015 12:11:55 AM org.apache.coyote.AbstractProtocol init
INFO: Initializing ProtocolHandler ["http-nio-8080"]
Dec 01, 2015 12:11:55 AM org.apache.tomcat.util.net.NioSelectorPool getSharedSelector
INFO: Using a shared selector for servlet write/read
Dec 01, 2015 12:11:55 AM org.apache.coyote.AbstractProtocol init
INFO: Initializing ProtocolHandler ["ajp-nio-8009"]
Dec 01, 2015 12:11:55 AM org.apache.tomcat.util.net.NioSelectorPool getSharedSelector
INFO: Using a shared selector for servlet write/read
Dec 01, 2015 12:11:55 AM org.apache.catalina.startup.Catalina load
INFO: Initialization processed in 2222 ms
Dec 01, 2015 12:11:55 AM org.apache.catalina.core.StandardService startInternal
INFO: Starting service Catalina
Dec 01, 2015 12:11:55 AM org.apache.catalina.core.StandardEngine startInternal
INFO: Starting Servlet Engine: Apache Tomcat/8.0.24
Dec 01, 2015 12:11:57 AM org.apache.catalina.util.SessionIdGeneratorBase createSecureRandom
INFO: Creation of SecureRandom instance for session ID generation using [SHA1PRNG] took [248] milliseconds.
Dec 01, 2015 12:12:16 AM org.apache.jasper.servlet.TldScanner scanJars
INFO: At least one JAR was scanned for TLDs yet contained no TLDs. Enable debug logging for this logger for a complete list of JARs that were scanned but no TLDs were found in them. Skipping unneeded JARs during scanning can improve startup time and JSP compilation time.
Dec 01, 2015 12:12:16 AM org.apache.catalina.core.ApplicationContext log
INFO: No Spring WebApplicationInitializer types detected on classpath
Dec 01, 2015 12:12:17 AM org.apache.catalina.core.ApplicationContext log
INFO: Initializing Spring root WebApplicationContext
Dec 01, 2015 12:12:17 AM org.springframework.web.context.ContextLoader initWebApplicationContext
INFO: Root WebApplicationContext: initialization started
Dec 01, 2015 12:12:17 AM org.springframework.web.context.support.XmlWebApplicationContext prepareRefresh
INFO: Refreshing Root WebApplicationContext: startup date [Tue Dec 01 00:12:17 PST 2015]; root of context hierarchy
Dec 01, 2015 12:12:18 AM org.springframework.beans.factory.xml.XmlBeanDefinitionReader loadBeanDefinitions
INFO: Loading XML bean definitions from ServletContext resource [/WEB-INF/spring.xml]
Dec 01, 2015 12:12:19 AM org.springframework.jdbc.datasource.DriverManagerDataSource setDriverClassName
INFO: Loaded JDBC driver: org.apache.derby.jdbc.ClientDriver
Dec 01, 2015 12:12:21 AM org.hibernate.Version logVersion
INFO: HHH000412: Hibernate Core {5.0.4.Final}
Dec 01, 2015 12:12:21 AM org.hibernate.cfg.Environment <clinit>
INFO: HHH000206: hibernate.properties not found
Dec 01, 2015 12:12:21 AM org.hibernate.cfg.Environment buildBytecodeProvider
INFO: HHH000021: Bytecode provider name : javassist
Dec 01, 2015 12:12:21 AM org.hibernate.annotations.common.reflection.java.JavaReflectionManager <clinit>
INFO: HCANN000001: Hibernate Commons Annotations {5.0.0.Final}
Dec 01, 2015 12:12:25 AM org.hibernate.dialect.Dialect <init>
INFO: HHH000400: Using dialect: org.hibernate.dialect.DerbyTenSevenDialect
Dec 01, 2015 12:12:32 AM org.springframework.web.context.ContextLoader initWebApplicationContext
INFO: Root WebApplicationContext: initialization completed in 14945 ms
Dec 01, 2015 12:12:34 AM org.apache.coyote.AbstractProtocol start
INFO: Starting ProtocolHandler ["http-nio-8080"]
Dec 01, 2015 12:12:34 AM org.apache.coyote.AbstractProtocol start
INFO: Starting ProtocolHandler ["ajp-nio-8009"]
Dec 01, 2015 12:12:34 AM org.apache.catalina.startup.Catalina start
INFO: Server startup in 40066 ms
Dec 01, 2015 12:14:21 AM org.apache.catalina.core.StandardWrapperValve invoke
SEVERE: Servlet.service() for servlet [Jersey Web Application] in context with path [/JerseySpringHibernate] threw exception [java.lang.NullPointerException] with root cause
java.lang.NullPointerException
    at org.shekar.service.RestRequestService.allRows(RestRequestService.java:23)
    at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
    at sun.reflect.NativeMethodAccessorImpl.invoke(Unknown Source)
    at sun.reflect.DelegatingMethodAccessorImpl.invoke(Unknown Source)
    at java.lang.reflect.Method.invoke(Unknown Source)
    at org.glassfish.jersey.server.model.internal.ResourceMethodInvocationHandlerFactory$1.invoke(ResourceMethodInvocationHandlerFactory.java:81)
    at org.glassfish.jersey.server.model.internal.AbstractJavaResourceMethodDispatcher$1.run(AbstractJavaResourceMethodDispatcher.java:144)
    at org.glassfish.jersey.server.model.internal.AbstractJavaResourceMethodDispatcher.invoke(AbstractJavaResourceMethodDispatcher.java:161)
    at org.glassfish.jersey.server.model.internal.JavaResourceMethodDispatcherProvider$TypeOutInvoker.doDispatch(JavaResourceMethodDispatcherProvider.java:205)
    at org.glassfish.jersey.server.model.internal.AbstractJavaResourceMethodDispatcher.dispatch(AbstractJavaResourceMethodDispatcher.java:99)
    at org.glassfish.jersey.server.model.ResourceMethodInvoker.invoke(ResourceMethodInvoker.java:389)
    at org.glassfish.jersey.server.model.ResourceMethodInvoker.apply(ResourceMethodInvoker.java:347)
    at org.glassfish.jersey.server.model.ResourceMethodInvoker.apply(ResourceMethodInvoker.java:102)
    at org.glassfish.jersey.server.ServerRuntime$2.run(ServerRuntime.java:308)
    at org.glassfish.jersey.internal.Errors$1.call(Errors.java:271)
    at org.glassfish.jersey.internal.Errors$1.call(Errors.java:267)
    at org.glassfish.jersey.internal.Errors.process(Errors.java:315)
    at org.glassfish.jersey.internal.Errors.process(Errors.java:297)
    at org.glassfish.jersey.internal.Errors.process(Errors.java:267)
    at org.glassfish.jersey.process.internal.RequestScope.runInScope(RequestScope.java:317)
    at org.glassfish.jersey.server.ServerRuntime.process(ServerRuntime.java:291)
    at org.glassfish.jersey.server.ApplicationHandler.handle(ApplicationHandler.java:1140)
    at org.glassfish.jersey.servlet.WebComponent.service(WebComponent.java:403)
    at org.glassfish.jersey.servlet.ServletContainer.service(ServletContainer.java:386)
    at org.glassfish.jersey.servlet.ServletContainer.service(ServletContainer.java:334)
    at org.glassfish.jersey.servlet.ServletContainer.service(ServletContainer.java:221)
    at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:291)
    at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:206)
    at org.apache.tomcat.websocket.server.WsFilter.doFilter(WsFilter.java:52)
    at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:239)
    at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:206)
    at org.apache.catalina.core.StandardWrapperValve.invoke(StandardWrapperValve.java:219)
    at org.apache.catalina.core.StandardContextValve.invoke(StandardContextValve.java:106)
    at org.apache.catalina.authenticator.AuthenticatorBase.invoke(AuthenticatorBase.java:502)
    at org.apache.catalina.core.StandardHostValve.invoke(StandardHostValve.java:142)
    at org.apache.catalina.valves.ErrorReportValve.invoke(ErrorReportValve.java:79)
    at org.apache.catalina.valves.AbstractAccessLogValve.invoke(AbstractAccessLogValve.java:617)
    at org.apache.catalina.core.StandardEngineValve.invoke(StandardEngineValve.java:88)
    at org.apache.catalina.connector.CoyoteAdapter.service(CoyoteAdapter.java:518)
    at org.apache.coyote.http11.AbstractHttp11Processor.process(AbstractHttp11Processor.java:1091)
    at org.apache.coyote.AbstractProtocol$AbstractConnectionHandler.process(AbstractProtocol.java:668)
    at org.apache.tomcat.util.net.NioEndpoint$SocketProcessor.doRun(NioEndpoint.java:1527)
    at org.apache.tomcat.util.net.NioEndpoint$SocketProcessor.run(NioEndpoint.java:1484)
    at java.util.concurrent.ThreadPoolExecutor.runWorker(Unknown Source)
    at java.util.concurrent.ThreadPoolExecutor$Worker.run(Unknown Source)
    at org.apache.tomcat.util.threads.TaskThread$WrappingRunnable.run(TaskThread.java:61)
    at java.lang.Thread.run(Unknown Source)

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>JerseySpringHibernate</groupId>
  <artifactId>JerseySpringHibernate</artifactId>
  <version>0.0.1-SNAPSHOT</version>
  <packaging>war</packaging>

  <properties>
        <jersey.version>2.19</jersey.version>
        <project.build.sourceEncoding>UTF-8</project.build.sourceEncoding>
   </properties>

   <dependencyManagement>
        <dependencies>
            <dependency>
                <groupId>org.glassfish.jersey</groupId>
                <artifactId>jersey-bom</artifactId>
                <version>${jersey.version}</version>
                <type>pom</type>
                <scope>import</scope>
            </dependency>
        </dependencies>
    </dependencyManagement>



<dependencies>
<!-- Jersey 2.19 configuration -->
    <dependency>
            <groupId>org.glassfish.jersey.containers</groupId>
            <artifactId>jersey-container-servlet-core</artifactId>
            <!-- use the following artifactId if you don't need servlet 2.x compatibility -->
            <!-- artifactId>jersey-container-servlet</artifactId -->
        </dependency>

        <dependency>
            <groupId>org.glassfish.jersey.media</groupId>
            <artifactId>jersey-media-moxy</artifactId>
        </dependency>


<!-- Persistence Api » 1.0.2 -->

<dependency>
    <groupId>javax.persistence</groupId>
    <artifactId>persistence-api</artifactId>
    <version>1.0.2</version>
</dependency>

<!-- jersey dependency APIs for CDI (Contexts and Dependency Injection for Java) -->
<dependency>
    <groupId>javax.enterprise</groupId>
    <artifactId>cdi-api</artifactId>
    <version>2.0-EDR1</version>
</dependency>

<!--Ejb Api » 3.0 -->

<dependency>
    <groupId>javax.ejb</groupId>
    <artifactId>ejb-api</artifactId>
    <version>3.0</version>
</dependency>


<!-- spring configuration -->

<dependency>
        <groupId>org.springframework</groupId>
        <artifactId>spring-context</artifactId>
        <version>4.2.3.RELEASE</version>
</dependency>

<!-- Spring JDBC -->
<dependency>
    <groupId>org.springframework</groupId>
    <artifactId>spring-jdbc</artifactId>
    <version>4.2.3.RELEASE</version>
</dependency>


<!--JSR250 annotation -->

<dependency>
<groupId>javax.annotation</groupId>
<artifactId>jsr250-api</artifactId>
<version>1.0</version>
</dependency> 


<!-- Spring orm -->
<dependency>
    <groupId>org.springframework</groupId>
    <artifactId>spring-orm</artifactId>
    <version>4.2.3.RELEASE</version>
</dependency>

<!-- Spring web -->
<dependency>
    <groupId>org.springframework</groupId>
    <artifactId>spring-web</artifactId>
    <version>4.2.3.RELEASE</version>
</dependency>

<!--java transaction API JTA configuration -->

<dependency>
    <groupId>javax.transaction</groupId>
    <artifactId>jta</artifactId>
    <version>1.1</version>
</dependency>

<!-- hibernate configuration -->

<dependency>
    <groupId>org.hibernate</groupId>
    <artifactId>hibernate-core</artifactId>
    <version>5.0.4.Final</version>
</dependency>


<!-- Derby dirver config for maven -->


<dependency>
    <groupId>org.apache.derby</groupId>
    <artifactId>derbyclient</artifactId>
    <version>10.11.1.1</version>
</dependency>

<dependency>
    <groupId>org.apache.derby</groupId>
    <artifactId>derby</artifactId>
    <version>10.11.1.1</version>
</dependency>


</dependencies>



  <build>
    <plugins>
      <plugin>
        <artifactId>maven-compiler-plugin</artifactId>
        <version>3.1</version>
        <configuration>
          <source>1.8</source>
          <target>1.8</target>
        </configuration>
      </plugin>
      <plugin>
        <artifactId>maven-war-plugin</artifactId>
        <version>2.4</version>
        <configuration>
          <warSourceDirectory>webapp</warSourceDirectory>
          <failOnMissingWebXml>false</failOnMissingWebXml>
        </configuration>
      </plugin>
    </plugins>
  </build>
</project>

Web.XML

<?xml version="1.0" encoding="UTF-8"?>
<web-app xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xmlns="http://xmlns.jcp.org/xml/ns/javaee" xsi:schemaLocation="http://xmlns.jcp.org/xml/ns/javaee http://xmlns.jcp.org/xml/ns/javaee/web-app_3_1.xsd" id="WebApp_ID" version="3.1">
  <display-name>JerseySpringHibernate</display-name>
  <welcome-file-list>
    <welcome-file>index.html</welcome-file>
  </welcome-file-list>


  <servlet>
        <servlet-name>Jersey Web Application</servlet-name>
        <servlet-class>org.glassfish.jersey.servlet.ServletContainer</servlet-class>
        <init-param>
            <param-name>jersey.config.server.provider.packages</param-name>
            <param-value>org.shekar</param-value>
        </init-param>
        <load-on-startup>1</load-on-startup>
    </servlet>

    <servlet-mapping>
        <servlet-name>Jersey Web Application</servlet-name>
        <url-pattern>/webapi/*</url-pattern>
    </servlet-mapping>

    <!-- loading spring context -->
    <context-param>
        <param-name>contextConfigLocation</param-name>
        <param-value>WEB-INF/spring.xml</param-value>
    </context-param>

    <listener>
   <listener-class>
        org.springframework.web.context.ContextLoaderListener
   </listener-class>
</listener> 



</web-app>

Spring .xml

<?xml version="1.0" encoding="UTF-8"?>
<beans xmlns="http://www.springframework.org/schema/beans"
    xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
    xmlns:context="http://www.springframework.org/schema/context"
    xsi:schemaLocation="http://www.springframework.org/schema/beans
    http://www.springframework.org/schema/beans/spring-beans-3.0.xsd
    http://www.springframework.org/schema/context
    http://www.springframework.org/schema/context/spring-context-3.0.xsd">


    <bean id="circle" class="org.shekar.model.CircleModel" scope="prototype"/>

    <bean id="datasource" class="org.springframework.jdbc.datasource.DriverManagerDataSource" autowire="constructor"> 
    <property name="driverClassName" value="org.apache.derby.jdbc.ClientDriver"/>
    <property name="url" value="jdbc:derby://localhost:1527/test;create=true"/>
    </bean>



    <bean id="sessn" class="org.springframework.orm.hibernate5.LocalSessionFactoryBean">
        <property name="dataSource" ref="datasource"/>
        <property name="packagesToScan" value="org.shekar.model"/>
        <property name="hibernateProperties">
            <props>
                <prop key="dialect">org.hibernate.dialect.DerbyDialect</prop>
            </props>
        </property>
    </bean>


    <bean id="DaoImpl" class="org.shekar.dao.DaoImpl">
    <property name="sessn" ref="sessn"/>
    </bean>

    </beans>

PS:-任何设计错误都请原谅我是菜鸟，这篇文章仅供学习目的

最佳答案

使用 RESTeasy 框架而不是 Jersey 框架来解决 RESTFUL 修复的 NPE 问题显然 Jersey 与 Spring 4 和 Hibernate 5 有问题

关于spring - 集成jersey+spring+hibernate的基础webapp，我们在Stack Overflow上找到一个类似的问题： https://stackoverflow.com/questions/34016284/

spring - 集成jersey+spring+hibernate的基础webapp

设计

Tomcat 控制台日志

POM.XML

Web.XML

Spring .xml

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