Spring和Hibernate Restful webservice配置

Question

我想请您对此提供帮助，我在NetBeans中配置了一个项目，以便使用Spring MVC和Hibernate构建一个Restful Webservice来连接数据库。

问题是我不知道如何配置控制器来执行并返回json。

我已经开发了数据访问层、服务和控制器，但我不知道如何配置项目来执行：例如http:localhost:8080/project/user。

    <?xml version='1.0' encoding='UTF-8' ?>
<!-- was: <?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:p="http://www.springframework.org/schema/p"
       xmlns:aop="http://www.springframework.org/schema/aop"
       xmlns:tx="http://www.springframework.org/schema/tx"
       xsi:schemaLocation="http://www.springframework.org/schema/beans http://www.springframework.org/schema/beans/spring-beans-4.0.xsd
       http://www.springframework.org/schema/aop http://www.springframework.org/schema/aop/spring-aop-4.0.xsd
       http://www.springframework.org/schema/tx http://www.springframework.org/schema/tx/spring-tx-4.0.xsd
       http://www.springframework.org/schema/cache http://www.springframework.org/schema/cache/spring-cache-4.0.xsd
       http://www.springframework.org/schema/context http://www.springframework.org/schema/context/spring-context-4.0.xsd
       http://www.springframework.org/schema/mvc http://www.springframework.org/schema/mvc/spring-mvc-4.0.xsd" xmlns:cache="http://www.springframework.org/schema/cache" xmlns:context="http://www.springframework.org/schema/context" xmlns:mvc="http://www.springframework.org/schema/mvc">

    <bean class="org.springframework.web.servlet.mvc.support.ControllerClassNameHandlerMapping"/>

    <!--
    Most controllers will use the ControllerClassNameHandlerMapping above, but
    for the index controller we are using ParameterizableViewController, so we must
    define an explicit mapping for it.
    -->
    <bean id="urlMapping" class="org.springframework.web.servlet.handler.SimpleUrlHandlerMapping">
        <property name="mappings">
            <props>
                <prop key="index.htm">indexController</prop>
            </props>
        </property>
    </bean>

    <bean id="viewResolver"
          class="org.springframework.web.servlet.view.InternalResourceViewResolver"
          p:prefix="/WEB-INF/jsp/"
          p:suffix=".jsp" />

    <!--
    The index controller.
    -->
    <bean name="indexController"
          class="org.springframework.web.servlet.mvc.ParameterizableViewController"
          p:viewName="index" />

    <mvc:annotation-driven/>
    <context:component-scan base-package="ServiceLayer.Controller"/>

</beans>

web.xml

    <?xml version="1.0" encoding="UTF-8"?>
<web-app version="3.1" 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">
    <context-param>
        <param-name>contextConfigLocation</param-name>
        <param-value>/WEB-INF/applicationContext.xml</param-value>
    </context-param>
    <context-param>
        <param-name>javax.faces.PROJECT_STAGE</param-name>
        <param-value>Development</param-value>
    </context-param>
    <listener>
        <listener-class>org.springframework.web.context.ContextLoaderListener</listener-class>
    </listener>
    <servlet>
        <servlet-name>dispatcher</servlet-name>
        <servlet-class>org.springframework.web.servlet.DispatcherServlet</servlet-class>
        <load-on-startup>2</load-on-startup>
    </servlet>
    <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>dispatcher</servlet-name>
        <url-pattern>*.htm</url-pattern>
    </servlet-mapping>
    <servlet-mapping>
        <servlet-name>Faces Servlet</servlet-name>
        <url-pattern>/faces/*</url-pattern>
    </servlet-mapping>
    <session-config>
        <session-timeout>
            30
        </session-timeout>
    </session-config>
    <welcome-file-list>
        <welcome-file>faces/index.xhtml</welcome-file>
        <welcome-file>redirect.jsp</welcome-file>
    </welcome-file-list>
</web-app>

错误：

org.springframework.beans.factory.NoSuchBeanDefinitionException：未找到依赖项得[DataAccessLayer.DataAccessObject.UserDAO]类型得合格bean：需要至少一个具有此依赖项自动候选资格得bean.依赖项注释：{@org.springframework.beans.factory.annotation.AutoWired(required=true)}org.springframework.beans.factory.support.defaultlistablebeanfactory.raisenosuchbeandefinitionexception（defaultlistablebeanfactory.java:1100)

org.springframework.beans.factory.BeanCreationException：创建名为“User Controller”的bean时出错：注入autowired依赖项失败；嵌套异常为org.SpringFramework.Beans.Factory.BeanCreationException：无法自动连接字段：private ServiceLayer.Service.UserService ServiceLayer.Controller.UserController.UserService；嵌套异常为org.springframework.beans.factory.beanCreationException：创建名为“user service”的bean时出错：注入autowired依赖项失败；嵌套异常为org.SpringFramework.Beans.Factory.BeanCreationException：无法自动连接字段：private DataAccessLayer.DataAccessObject.UserDAO ServiceLayer.Service.UserService.UserDAO；嵌套异常为org.springframework.beans.factory.NoSuchBeanDefinitionException：未找到依赖项得[DataAccessLayer.DataAccessObject.UserDAO]类型得合格bean：需要至少一个符合此依赖项自动候选条件得bean.依赖项注释：{@org.SpringFramework.Beans.Factory.Annotation.AutoWired(required=true)}

org.springframework.beans.factory.BeanCreationException：创建ServletContext资源[/web-inf/dispatcher-servlet.xml]中定义的名为“org.springframework.web.servlet.mvc.support.ControllerClassNameHandlerMapping#0”的bean时出错：bean初始化失败；嵌套异常为org.springframework.beans.factory.beanCreationException：创建名为“user controller”的bean时出错：注入autowired依赖项失败；嵌套异常为org.SpringFramework.Beans.Factory.BeanCreationException：无法自动连接字段：private ServiceLayer.Service.UserService ServiceLayer.Controller.UserController.UserService；嵌套异常为org.springframework.beans.factory.beanCreationException：创建名为“user service”的bean时出错：注入autowired依赖项失败；嵌套异常为org.SpringFramework.Beans.Factory.BeanCreationException：无法自动连接字段：private DataAccessLayer.DataAccessObject.UserDAO ServiceLayer.Service.UserService.UserDAO；嵌套异常为org.springframework.beans.factory.NoSuchBeanDefinitionException：未找到依赖项得[DataAccessLayer.DataAccessObject.UserDAO]类型得合格bean：需要至少一个符合此依赖项自动候选条件得bean.依赖项注释：{@org.SpringFramework.Beans.Factory.Annotation.AutoWired(required=true)}

我将非常感谢你的帮助。

Answer 1

这不是对你问题的直接回答。但从长远来看可能会有帮助。

为什么不将应用程序作为spring boot应用程序。它将使您的应用程序更简单。您不需要配置web.xml、部署war等等。您可以开始使用这个完整的文档，可以在这里找到