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我在配置 Spring MVC 时遇到了一些问题。我用以下模块制作了一个 Maven 多模块项目：

/api
/domain
/repositories
/webapp

我喜欢在 api 和 webapp（两个 web 项目）之间共享域和存储库。首先，我想将 webapp 配置为使用存储库模块，所以我在 xml 文件中添加了依赖项，如下所示：

<dependency>
        <groupId>${project.groupId}</groupId>
        <artifactId>domain</artifactId>
        <version>1.0-SNAPSHOT</version>
    </dependency>
    <dependency>
        <groupId>${project.groupId}</groupId>
        <artifactId>repositories</artifactId>
        <version>1.0-SNAPSHOT</version>
    </dependency>

我在 webapp 模块中的控制器如下所示：

package com.mywebapp.webapp;
import com.mywebapp.domain.Person;
import com.mywebapp.repositories.services.PersonService;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.context.annotation.ComponentScan;
import org.springframework.context.annotation.Configuration;
import org.springframework.stereotype.Controller;
import org.springframework.ui.ModelMap;
import org.springframework.web.bind.annotation.RequestMapping;
import org.springframework.web.bind.annotation.RequestMethod;

@Controller
@RequestMapping("/")
@Configuration
@ComponentScan("com.mywebapp.repositories")
public class PersonController {

@Autowired
PersonService personservice;

@RequestMapping(method = RequestMethod.GET)
public String printWelcome(ModelMap model) {
    Person p = new Person();
    p.age = 23;
    p.firstName = "John";
    p.lastName = "Doe";

    personservice.createNewPerson(p);

    model.addAttribute("message", "Hello world!");
    return "index";
}
}

在我的 webapp 模块中，我尝试在我的 web.xml 中加载配置文件，如下所示：

<context-param>
    <param-name>contextConfigLocation</param-name>
    <param-value>classpath:/META-INF/persistence-context.xml, classpath:/META-INF/service-context.xml</param-value>
</context-param>

找不到这些文件，所以我收到以下错误：

org.springframework.beans.factory.BeanDefinitionStoreException：IOException 从类路径资源解析 XML 文档 [META-INF/persistence-context.xml]；嵌套异常是 java.io.FileNotFoundException：类路径资源 [META-INF/persistence-context.xml] 无法打开，因为它不存在

这些文件位于存储库模块中，所以我的第一个问题是如何让 Spring 找到这些文件？

我也有麻烦将 PersonService 自动装配到我的 Controller 类我忘记在我的 XML 中配置一些东西了吗？

这是错误消息：

[INFO] [talledLocalContainer] 严重：向 org.springframework.web.context.ContextLoaderListener 类的侦听器实例发送上下文初始化事件的异常 [INFO] [talledLocalContainer] org.springframework.beans.factory.BeanCreationException：创建名为“personServiceImpl”的 bean 时出错': 自动装配依赖注入失败；嵌套异常是 org.springframework.beans.factory.BeanCreationException：无法自动装配字段：私有 com.mywebapp.repositories.repository.PersonRepository com.mywebapp.repositories.services.PersonServiceImpl.personRepository；嵌套异常是 org.springframework.beans.factory.NoSuchBeanDefinitionException：没有为依赖找到类型 [com.mywebapp.repositories.repository.PersonRepository] ​​的匹配 bean：预计至少有 1 个 bean 有资格作为此依赖项的自动装配候选者。依赖注解：{@org.springframework.beans.factory.annotation.Autowired(required=true)}

PersonServiceImple.java：

    package com.mywebapp.repositories.services;
import com.mywebapp.domain.Person;
import com.mywebapp.repositories.repository.PersonRepository;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.data.mongodb.core.MongoTemplate;
import org.springframework.stereotype.Service;

@Service
public class PersonServiceImpl implements PersonService{

@Autowired
public PersonRepository personRepository;

@Autowired
public MongoTemplate personTemplate;

@Override
public Person createNewPerson(Person person) {
    return personRepository.save(person);
}
}

人事服务.java

package com.mywebapp.repositories.services;

import com.mywebapp.domain.Person;

public interface PersonService {

Person createNewPerson(Person person);

}

PersonRepository.java：

package com.mywebapp.repositories.repository;

import com.mywebapp.domain.Person;
import org.springframework.data.mongodb.repository.MongoRepository;
import org.springframework.stereotype.Repository;
import java.math.BigInteger;

@Repository
public interface PersonRepository extends MongoRepository<Person, BigInteger> {
}

持久性上下文.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"
   xmlns:mongo="http://www.springframework.org/schema/data/mongo"
   xsi:schemaLocation=
           "http://www.springframework.org/schema/context
      http://www.springframework.org/schema/context/spring-context-3.0.xsd
      http://www.springframework.org/schema/data/mongo
      http://www.springframework.org/schema/data/mongo/spring-mongo-1.0.xsd
      http://www.springframework.org/schema/beans
      http://www.springframework.org/schema/beans/spring-beans-3.0.xsd">

<context:property-placeholder location="classpath:mongo.properties"/>

<mongo:mongo host="${mongo.host}" port="${mongo.port}" id="mongo">
    <mongo:options
            connections-per-host="${mongo.connectionsPerHost}"
            threads-allowed-to-block-for-connection-multiplier="${mongo.threadsAllowedToBlockForConnectionMultiplier}"
            connect-timeout="${mongo.connectTimeout}"
            max-wait-time="${mongo.maxWaitTime}"
            auto-connect-retry="${mongo.autoConnectRetry}"
            socket-keep-alive="${mongo.socketKeepAlive}"
            socket-timeout="${mongo.socketTimeout}"
            slave-ok="${mongo.slaveOk}"
            write-number="1"
            write-timeout="0"
            write-fsync="true"/>
</mongo:mongo>

<mongo:db-factory dbname="person" mongo-ref="mongo" id="mongoDbFactory"/>

<bean id="personTemplate" name="personTemplate" class="org.springframework.data.mongodb.core.MongoTemplate">
    <constructor-arg name="mongoDbFactory" ref="mongoDbFactory"/>
</bean>

<mongo:repositories base-package="com.mywebapp.repositories.repository" mongo-template-ref="personTemplate">
    <mongo:repository id="personRepository" repository-impl-postfix="PersonRepository"  mongo-template-ref="personTemplate" create-query-indexes="true"/>
</mongo:repositories>

谢谢

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