启动maven时报错NoSuchBeanDefinitionException:?400报错
项目结构：
rentcar-dao结构：
实体类：
userdao.xml内容：
application_userDao.xml内容：
<?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-4.0.xsd
http://www.springframework.org/schema/context
http://www.springframework.org/schema/context/spring-context.xsd">
<context:property-placeholder location="classpath:dbConfig.properties"/>
<bean id="dataSource" class="com.alibaba.druid.pool.DruidDataSource" >
<property name="driverClassName" value="${jdbc.driver}" ></property>
<property name="url" value="${jdbc.url}" ></property>
<property name="username" value="${jdbc.username}" ></property>
<property name="password" value="${jdbc.password}" ></property>
</bean>
<bean id="sessionFactory" class="org.mybatis.spring.SqlSessionFactoryBean" >
<property name="dataSource" ref="dataSource" ></property>
<property name="typeAliasesPackage" value="com.wtk.pojo" ></property>
</bean>
<bean id="DaoScanner" class="org.mybatis.spring.mapper.MapperScannerConfigurer" >
<property name="basePackage" value="com.wtk.dao" ></property>
</bean>
</beans>rentcar-dao中pom文件内容：
<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>
<parent>
<groupId>com.wtk</groupId>
<artifactId>rentcar-parent</artifactId>
<version>0.0.1-SNAPSHOT</version>
</parent>
<artifactId>rentcar-dao</artifactId>
<build />
<properties>
<spring.version>5.0.2.RELEASE</spring.version>
<slf4j.version>1.6.6</slf4j.version>
<log4j.version>1.2.12</log4j.version>
</properties>
<dependencies>
<dependency>
<groupId>org.mybatis</groupId>
<artifactId>mybatis</artifactId>
<version>3.4.6</version>
</dependency>
<dependency>
<groupId>mysql</groupId>
<artifactId>mysql-connector-java</artifactId>
<version>5.1.38</version>
</dependency>
<dependency>
<groupId>com.alibaba</groupId>
<artifactId>druid</artifactId>
<version>1.1.10</version>
<scope>compile</scope>
</dependency>
<dependency>
<groupId>org.mybatis</groupId>
<artifactId>mybatis-spring</artifactId>
<version>1.3.2</version>
</dependency>
<!-- 日志依赖 -->
<dependency>
<groupId>log4j</groupId>
<artifactId>log4j</artifactId>
<version>${log4j.version}</version>
</dependency>
<dependency>
<groupId>org.slf4j</groupId>
<artifactId>slf4j-api</artifactId>
<version>${slf4j.version}</version>
</dependency>
<dependency>
<groupId>org.slf4j</groupId>
<artifactId>slf4j-log4j12</artifactId>
<version>${slf4j.version}</version>
</dependency>
<!-- spring 依赖 -->
<dependency>
<groupId>org.aspectj</groupId>
<artifactId>aspectjweaver</artifactId>
<version>1.6.8</version>
</dependency>
<dependency>
<groupId>org.springframework</groupId>
<artifactId>spring-aop</artifactId>
<version>${spring.version}</version>
</dependency>
<dependency>
<groupId>org.springframework</groupId>
<artifactId>spring-context</artifactId>
<version>${spring.version}</version>
</dependency>
<dependency>
<groupId>org.springframework</groupId>
<artifactId>spring-core</artifactId>
<version>${spring.version}</version>
</dependency>
<dependency>
<groupId>org.springframework</groupId>
<artifactId>spring-beans</artifactId>
<version>${spring.version}</version>
</dependency>
<dependency>
<groupId>org.springframework</groupId>
<artifactId>spring-test</artifactId>
<version>${spring.version}</version>
</dependency>
<dependency>
<groupId>org.springframework</groupId>
<artifactId>spring-tx</artifactId>
<version>${spring.version}</version>
</dependency>
<dependency>
<groupId>org.springframework</groupId>
<artifactId>spring-jdbc</artifactId>
<version>${spring.version}</version>
</dependency>
<!-- 测试依赖 -->
<dependency>
<groupId>junit</groupId>
<artifactId>junit</artifactId>
<version>4.12</version>
<scope>test</scope>
</dependency>
</dependencies>
</project>
rentcar-service结构：
userServiceImpl.java内容：
package com.wtk.service.impl;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.stereotype.Controller;
import org.springframework.stereotype.Service;
import com.wtk.dao.UserDao;
import com.wtk.pojo.User;
import com.wtk.service.UserService;
@Service("userService")
public class UserServiceImpl implements UserService {
@Autowired
private UserDao userDao;
@Override
public User findUserById(Integer id) {
User user = userDao.findUserById(id);
return user;
}
}
application_service.xml内容：
<?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-4.0.xsd
http://www.springframework.org/schema/context
http://www.springframework.org/schema/context/spring-context.xsd">
<context:component-scan base-package="com.wtk.service"></context:component-scan>
<context:annotation-config/>
</beans>rentcar-service中pom文件内容：
<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>
<parent>
<groupId>com.wtk</groupId>
<artifactId>rentcar-parent</artifactId>
<version>0.0.1-SNAPSHOT</version>
</parent>
<artifactId>rentcar-service</artifactId>
<build />
<properties>
<spring.version>5.0.2.RELEASE</spring.version>
</properties>
<dependencies>
<dependency>
<groupId>com.wtk</groupId>
<artifactId>rentcar-dao</artifactId>
<version>0.0.1-SNAPSHOT</version>
</dependency>
<!-- 测试依赖 -->
<dependency>
<groupId>junit</groupId>
<artifactId>junit</artifactId>
<version>4.12</version>
<scope>test</scope>
</dependency>
</dependencies>
</project>
rentcar-web结构：
UserController.java内容：
package com.wtk.web.controller;
import javax.annotation.Resource;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.stereotype.Controller;
import org.springframework.ui.ModelMap;
import org.springframework.web.bind.annotation.RequestMapping;
import com.wtk.pojo.User;
import com.wtk.service.UserService;
@Controller
public class UserController {
@Resource(name="userService")
private UserService userService;
@RequestMapping("findUserById")
public String findUserById(Integer id,ModelMap model){
User user = userService.findUserById(id);
System.out.println(user);
model.addAttribute("user", user);
return "/success.jsp";
}
}
springmvc.xml内容：
<?xml version="1.0" encoding="UTF-8"?>
<beans xmlns="http://www.springframework.org/schema/beans"
xmlns:context="http://www.springframework.org/schema/context"
xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
xmlns:aop="http://www.springframework.org/schema/aop"
xmlns:tx="http://www.springframework.org/schema/tx"
xmlns:mvc="http://www.springframework.org/schema/mvc"
xmlns:p="http://www.springframework.org/schema/p"
xsi:schemaLocation="
http://www.springframework.org/schema/context
http://www.springframework.org/schema/context/spring-context.xsd
http://www.springframework.org/schema/beans
http://www.springframework.org/schema/beans/spring-beans-3.2.xsd
http://www.springframework.org/schema/tx
http://www.springframework.org/schema/tx/spring-tx.xsd
http://www.springframework.org/schema/mvc
http://www.springframework.org/schema/mvc/spring-mvc.xsd
http://www.springframework.org/schema/aop
http://www.springframework.org/schema/aop/spring-aop-3.2.xsd">
<!-- 开启扫描 -->
<context:component-scan base-package="com.wtk.web.controller"></context:component-scan>
<context:annotation-config/>
<!-- 开启异步请求 -->
<mvc:annotation-driven/>
</beans>web.xml内容：
<?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" version="3.1">
<display-name>rentcar-web</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>
<!-- 配置读取springmvc文件 -->
<servlet>
<servlet-name>DispatcherServlet</servlet-name>
<servlet-class>org.springframework.web.servlet.DispatcherServlet</servlet-class>
<init-param>
<param-name>contextConfigLocation</param-name>
<param-value>classpath:springmvc.xml</param-value>
</init-param>
<load-on-startup>1</load-on-startup>
</servlet>
<servlet-mapping>
<servlet-name>DispatcherServlet</servlet-name>
<url-pattern>/</url-pattern>
</servlet-mapping>
<filter>
<filter-name>CharacterEncodingFilter</filter-name>
<filter-class>org.springframework.web.filter.CharacterEncodingFilter</filter-class>
<init-param>
<param-name>encoding</param-name>
<param-value>utf-8</param-value>
</init-param>
<init-param>
<param-name>forceEncoding</param-name>
<param-value>true</param-value>
</init-param>
</filter>
<filter-mapping>
<filter-name>CharacterEncodingFilter</filter-name>
<url-pattern>/*</url-pattern>
</filter-mapping>
<context-param>
<param-name>contextConfigLocation</param-name>
<param-value>classpath*:application_*</param-value>
</context-param>
<listener>
<listener-class>org.springframework.web.context.ContextLoaderListener</listener-class>
</listener>
</web-app>rentcar-web中pom文件内容：
<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>
<parent>
<groupId>com.wtk</groupId>
<artifactId>rentcar-parent</artifactId>
<version>0.0.1-SNAPSHOT</version>
</parent>
<artifactId>rentcar-web</artifactId>
<packaging>war</packaging>
<build>
<finalName>ssm</finalName>
<pluginManagement>
<plugins>
<plugin>
<groupId>org.apache.maven.plugins</groupId>
<artifactId>maven-compiler-plugin</artifactId>
<version>3.2</version>
<configuration>
<source>1.8</source>
<target>1.8</target>
<encoding>UTF-8</encoding>
<showWarnings>true</showWarnings>
</configuration>
</plugin>
</plugins>
</pluginManagement>
</build>
<properties>
<spring.version>5.0.2.RELEASE</spring.version>
</properties>
<dependencies>
<dependency>
<groupId>javax.servlet</groupId>
<artifactId>javax.servlet-api</artifactId>
<version>3.0.1</version>
<scope>provided</scope>
</dependency>
<dependency>
<groupId>com.wtk</groupId>
<artifactId>rentcar-service</artifactId>
<version>0.0.1-SNAPSHOT</version>
</dependency>
<dependency>
<groupId>org.springframework</groupId>
<artifactId>spring-web</artifactId>
<version>${spring.version}</version>
</dependency>
<dependency>
<groupId>org.springframework</groupId>
<artifactId>spring-webmvc</artifactId>
<version>${spring.version}</version>
</dependency>
</dependencies>
</project>
命令：tomcat:run，项目运行时报错：
[ERROR] Context initialization failed
org.springframework.beans.factory.BeanCreationException: Error creating bean with name 'userController': Injection of resource dependencies failed; nested exception is org.springframework.beans.factory.NoSuchBeanDefinitionException: No bean named 'userService' available
at org.springframework.context.annotation.CommonAnnotationBeanPostProcessor.postProcessPropertyValues (CommonAnnotationBeanPostProcessor.java:321)
at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.populateBean (AbstractAutowireCapableBeanFactory.java:1344)
at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.doCreateBean (AbstractAutowireCapableBeanFactory.java:582)
at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.createBean (AbstractAutowireCapableBeanFactory.java:502)
at org.springframework.beans.factory.support.AbstractBeanFactory.lambda$doGetBean$0 (AbstractBeanFactory.java:312)
at org.springframework.beans.factory.support.DefaultSingletonBeanRegistry.getSingleton (DefaultSingletonBeanRegistry.java:228)
at org.springframework.beans.factory.support.AbstractBeanFactory.doGetBean (AbstractBeanFactory.java:310)
at org.springframework.beans.factory.support.AbstractBeanFactory.getBean (AbstractBeanFactory.java:200)
at org.springframework.beans.factory.support.DefaultListableBeanFactory.preInstantiateSingletons (DefaultListableBeanFactory.java:758)
at org.springframework.context.support.AbstractApplicationContext.finishBeanFactoryInitialization (AbstractApplicationContext.java:868)
at org.springframework.context.support.AbstractApplicationContext.refresh (AbstractApplicationContext.java:549)
at org.springframework.web.servlet.FrameworkServlet.configureAndRefreshWebApplicationContext (FrameworkServlet.java:676)
at org.springframework.web.servlet.FrameworkServlet.createWebApplicationContext (FrameworkServlet.java:642)
at org.springframework.web.servlet.FrameworkServlet.createWebApplicationContext (FrameworkServlet.java:690)
at org.springframework.web.servlet.FrameworkServlet.initWebApplicationContext (FrameworkServlet.java:558)
at org.springframework.web.servlet.FrameworkServlet.initServletBean (FrameworkServlet.java:499)
at org.springframework.web.servlet.HttpServletBean.init (HttpServletBean.java:172)
at javax.servlet.GenericServlet.init (GenericServlet.java:212)
at org.apache.catalina.core.StandardWrapper.loadServlet (StandardWrapper.java:1173)
at org.apache.catalina.core.StandardWrapper.load (StandardWrapper.java:993)
at org.apache.catalina.core.StandardContext.loadOnStartup (StandardContext.java:4350)
at org.apache.catalina.core.StandardContext.start (StandardContext.java:4659)
at org.apache.catalina.core.ContainerBase.start (ContainerBase.java:1045)
at org.apache.catalina.core.StandardHost.start (StandardHost.java:785)
at org.apache.catalina.core.ContainerBase.start (ContainerBase.java:1045)
at org.apache.catalina.core.StandardEngine.start (StandardEngine.java:445)
at org.apache.catalina.startup.Embedded.start (Embedded.java:825)
at org.codehaus.mojo.tomcat.AbstractRunMojo.startContainer (AbstractRunMojo.java:558)
at org.codehaus.mojo.tomcat.AbstractRunMojo.execute (AbstractRunMojo.java:255)
at org.apache.maven.plugin.DefaultBuildPluginManager.executeMojo (DefaultBuildPluginManager.java:137)
at org.apache.maven.lifecycle.internal.MojoExecutor.execute (MojoExecutor.java:210)
at org.apache.maven.lifecycle.internal.MojoExecutor.execute (MojoExecutor.java:156)
at org.apache.maven.lifecycle.internal.MojoExecutor.execute (MojoExecutor.java:148)
at org.apache.maven.lifecycle.internal.LifecycleModuleBuilder.buildProject (LifecycleModuleBuilder.java:117)
at org.apache.maven.lifecycle.internal.LifecycleModuleBuilder.buildProject (LifecycleModuleBuilder.java:81)
at org.apache.maven.lifecycle.internal.builder.singlethreaded.SingleThreadedBuilder.build (SingleThreadedBuilder.java:56)
at org.apache.maven.lifecycle.internal.LifecycleStarter.execute (LifecycleStarter.java:128)
at org.apache.maven.DefaultMaven.doExecute (DefaultMaven.java:305)
at org.apache.maven.DefaultMaven.doExecute (DefaultMaven.java:192)
at org.apache.maven.DefaultMaven.execute (DefaultMaven.java:105)
at org.apache.maven.cli.MavenCli.execute (MavenCli.java:957)
at org.apache.maven.cli.MavenCli.doMain (MavenCli.java:289)
at org.apache.maven.cli.MavenCli.main (MavenCli.java:193)
at sun.reflect.NativeMethodAccessorImpl.invoke0 (Native Method)
at sun.reflect.NativeMethodAccessorImpl.invoke (NativeMethodAccessorImpl.java:62)
at sun.reflect.DelegatingMethodAccessorImpl.invoke (DelegatingMethodAccessorImpl.java:43)
at java.lang.reflect.Method.invoke (Method.java:498)
at org.codehaus.plexus.classworlds.launcher.Launcher.launchEnhanced (Launcher.java:282)
at org.codehaus.plexus.classworlds.launcher.Launcher.launch (Launcher.java:225)
at org.codehaus.plexus.classworlds.launcher.Launcher.mainWithExitCode (Launcher.java:406)
at org.codehaus.plexus.classworlds.launcher.Launcher.main (Launcher.java:347)
Caused by: org.springframework.beans.factory.NoSuchBeanDefinitionException: No bean named 'userService' available
at org.springframework.beans.factory.support.DefaultListableBeanFactory.getBeanDefinition (DefaultListableBeanFactory.java:687)
at org.springframework.beans.factory.support.AbstractBeanFactory.getMergedLocalBeanDefinition (AbstractBeanFactory.java:1205)
at org.springframework.beans.factory.support.AbstractBeanFactory.doGetBean (AbstractBeanFactory.java:292)
at org.springframework.beans.factory.support.AbstractBeanFactory.doGetBean (AbstractBeanFactory.java:274)
at org.springframework.beans.factory.support.AbstractBeanFactory.getBean (AbstractBeanFactory.java:205)
at org.springframework.context.annotation.CommonAnnotationBeanPostProcessor.autowireResource (CommonAnnotationBeanPostProcessor.java:513)
at org.springframework.context.annotation.CommonAnnotationBeanPostProcessor.getResource (CommonAnnotationBeanPostProcessor.java:484)
at org.springframework.context.annotation.CommonAnnotationBeanPostProcessor$ResourceElement.getResourceToInject (CommonAnnotationBeanPostProcessor.java:618)
at org.springframework.beans.factory.annotation.InjectionMetadata$InjectedElement.inject (InjectionMetadata.java:177)
at org.springframework.beans.factory.annotation.InjectionMetadata.inject (InjectionMetadata.java:91)
at org.springframework.context.annotation.CommonAnnotationBeanPostProcessor.postProcessPropertyValues (CommonAnnotationBeanPostProcessor.java:318)
at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.populateBean (AbstractAutowireCapableBeanFactory.java:1344)
at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.doCreateBean (AbstractAutowireCapableBeanFactory.java:582)
at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.createBean (AbstractAutowireCapableBeanFactory.java:502)
at org.springframework.beans.factory.support.AbstractBeanFactory.lambda$doGetBean$0 (AbstractBeanFactory.java:312)
at org.springframework.beans.factory.support.DefaultSingletonBeanRegistry.getSingleton (DefaultSingletonBeanRegistry.java:228)
at org.springframework.beans.factory.support.AbstractBeanFactory.doGetBean (AbstractBeanFactory.java:310)
at org.springframework.beans.factory.support.AbstractBeanFactory.getBean (AbstractBeanFactory.java:200)
at org.springframework.beans.factory.support.DefaultListableBeanFactory.preInstantiateSingletons (DefaultListableBeanFactory.java:758)
at org.springframework.context.support.AbstractApplicationContext.finishBeanFactoryInitialization (AbstractApplicationContext.java:868)
at org.springframework.context.support.AbstractApplicationContext.refresh (AbstractApplicationContext.java:549)
at org.springframework.web.servlet.FrameworkServlet.configureAndRefreshWebApplicationContext (FrameworkServlet.java:676)
at org.springframework.web.servlet.FrameworkServlet.createWebApplicationContext (FrameworkServlet.java:642)
at org.springframework.web.servlet.FrameworkServlet.createWebApplicationContext (FrameworkServlet.java:690)
at org.springframework.web.servlet.FrameworkServlet.initWebApplicationContext (FrameworkServlet.java:558)
at org.springframework.web.servlet.FrameworkServlet.initServletBean (FrameworkServlet.java:499)
at org.springframework.web.servlet.HttpServletBean.init (HttpServletBean.java:172)
at javax.servlet.GenericServlet.init (GenericServlet.java:212)
at org.apache.catalina.core.StandardWrapper.loadServlet (StandardWrapper.java:1173)
at org.apache.catalina.core.StandardWrapper.load (StandardWrapper.java:993)
at org.apache.catalina.core.StandardContext.loadOnStartup (StandardContext.java:4350)
at org.apache.catalina.core.StandardContext.start (StandardContext.java:4659)
at org.apache.catalina.core.ContainerBase.start (ContainerBase.java:1045)
at org.apache.catalina.core.StandardHost.start (StandardHost.java:785)
at org.apache.catalina.core.ContainerBase.start (ContainerBase.java:1045)
at org.apache.catalina.core.StandardEngine.start (StandardEngine.java:445)
at org.apache.catalina.startup.Embedded.start (Embedded.java:825)
at org.codehaus.mojo.tomcat.AbstractRunMojo.startContainer (AbstractRunMojo.java:558)
at org.codehaus.mojo.tomcat.AbstractRunMojo.execute (AbstractRunMojo.java:255)
at org.apache.maven.plugin.DefaultBuildPluginManager.executeMojo (DefaultBuildPluginManager.java:137)
at org.apache.maven.lifecycle.internal.MojoExecutor.execute (MojoExecutor.java:210)
at org.apache.maven.lifecycle.internal.MojoExecutor.execute (MojoExecutor.java:156)
at org.apache.maven.lifecycle.internal.MojoExecutor.execute (MojoExecutor.java:148)
at org.apache.maven.lifecycle.internal.LifecycleModuleBuilder.buildProject (LifecycleModuleBuilder.java:117)
at org.apache.maven.lifecycle.internal.LifecycleModuleBuilder.buildProject (LifecycleModuleBuilder.java:81)
at org.apache.maven.lifecycle.internal.builder.singlethreaded.SingleThreadedBuilder.build (SingleThreadedBuilder.java:56)
at org.apache.maven.lifecycle.internal.LifecycleStarter.execute (LifecycleStarter.java:128)
at org.apache.maven.DefaultMaven.doExecute (DefaultMaven.java:305)
at org.apache.maven.DefaultMaven.doExecute (DefaultMaven.java:192)
at org.apache.maven.DefaultMaven.execute (DefaultMaven.java:105)
at org.apache.maven.cli.MavenCli.execute (MavenCli.java:957)
at org.apache.maven.cli.MavenCli.doMain (MavenCli.java:289)
at org.apache.maven.cli.MavenCli.main (MavenCli.java:193)
at sun.reflect.NativeMethodAccessorImpl.invoke0 (Native Method)
at sun.reflect.NativeMethodAccessorImpl.invoke (NativeMethodAccessorImpl.java:62)
at sun.reflect.DelegatingMethodAccessorImpl.invoke (DelegatingMethodAccessorImpl.java:43)
at java.lang.reflect.Method.invoke (Method.java:498)
at org.codehaus.plexus.classworlds.launcher.Launcher.launchEnhanced (Launcher.java:282)
at org.codehaus.plexus.classworlds.launcher.Launcher.launch (Launcher.java:225)
at org.codehaus.plexus.classworlds.launcher.Launcher.mainWithExitCode (Launcher.java:406)
at org.codehaus.plexus.classworlds.launcher.Launcher.main (Launcher.java:347)但是从上面可以看到在service层是加上了@Service("userService")注解的，在网上找了好几种方法都试过了，还是不行，想问问有没有大佬帮忙看看啊？
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https://developer.aliyun.com/profile/5yerqm5bn5yqg?spm=a2c6h.12873639.0.0.6eae304abcjaIB<p>试下springmvc.xml的<context:component-scan base-package="com.wtk.web.controller"></context:component-scan>改为<context:component-scan base-package="com.wtk"></context:component-scan>看看</p> maven的依赖关系能够使rentcar-web下的web.xml文件扫描到rentcar-service下的application_service.xml文件吗？ 这个整合在javaweb项目上没问题，但是放到maven上面就出了问题，这是为什么啊？ 试过了，没有用。按理说，这个controller包是被扫描到了的。出现这个问题，我能想到的是，userService这个类没有交给spring容器管理，无法利用反射来进行操作。而导致这个问题的出现我也只能想到的方法：一个是加上注解，一个是在配置文件中加上扫描，一个是application_servcie.xml这个文件没有系统加载，所以无法进行扫描。 <p>你的application-service配置文件要放在web工程的资源包下，service模块并没有依赖spring-context。web模块才是spring容器扫描的起点，在指定了componentScan service包的条件下，可以扫描依赖模块的内容。</p> 回复 <a class="referer" target="_blank">@CodePrayer</a> : 这个和分布式无关，只是maven多模块聚合 回复 <a class="referer" target="_blank">@CodePrayer</a> : 那就是你的web.xml文件里配置spring扫描上下文的路径问题了，你检查下你的这个<context-param> <param-name>contextConfigLocation</param-name> <param-value>classpath*:application_*</param-value> </context-param>
回复 <a class="referer" target="_blank">@jun_anderson</a> : service层也加上了spring-web和spring-webmvc的依赖，但是还是报一样的错。。。这个会不会涉及到分布式啊？网上整合的都是在一个项目里进行整合，没有这种分成三个项目进行依赖整合的 回复 <a class="referer" target="_blank">@CodePrayer</a> : 那可能就是你的service模块没有依赖进去web模块，检查一下pom，和maven打包插件 我把application_service和application_dao还有dbConfig.properties文件都移到了web工程的resource资源包下，开始是报缺少jar包的错，所有在dao层所依赖的jar包我在web层又直接依赖了一次。但最后还是报了相同的错。No bean named 'userService' available。。。感觉maven这种依赖关系是不是哪里有问题啊 <p>为什么打了注解还要再配置xml</p> 因为要让服务器扫描注解的类啊 <p>你最后启动的是web项目,web.xml里读取了springmvc.xml</p>注意,springmvc.xml这里只扫描了controller包,由于service包在其它项目里,所以springmvc.xml中哪怕扫描整个项目你也扫描不到service的.
说白了,你web项目没有读取service的xml
解决方案:在springmvc.xml里beans节点中导入service的xml
<import resource="classpath:application_service.xml" />
应该是这样的。。 <p>我有个问题，为什么不迁移到springboot？spring mvc的各种xml配置太恶心了</p>2020-06-05 14:51:18赞同 展开评论 打赏
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