1. 程式人生 > >SSM專案搭建時遇到的問題

SSM專案搭建時遇到的問題

具體搭建過程請參考:http://blog.csdn.net/zhshulin/article/details/37956105

下面是我在搭建的過程中遇到的一些問題及解決方法,僅供參考:

1、缺少commons-pool包,報錯如下:


此處解決方案就是在pol.xml檔案中引入該包

<dependency>

    <groupId>commons-pool</groupId>

    <artifactId>commons-pool</artifactId>

    <version>1.5.5</version>

</dependency>

2、json轉換的配置:


將原來的類替換為:MappingJackson2HttpMessageConverter。Spring的包裡面並沒有找到MappingJacksonHttpMessageConverter這個類

3、還是json轉換的問題,報錯如下:

[org.springframework.web.context.support.XmlWebApplicationContext] - Exception encountered during context initialization - cancelling refresh attempt: org.springframework.beans.factory.BeanCreationException: Error creating bean with name 'userController': Injection of autowired dependencies failed; nested exception is org.springframework.beans.factory.BeanCreationException: Could not autowire field: private com.yunva.admin.business.service.UserService com.yunva.admin.business.controller.UserController.service; nested exception is org.springframework.beans.factory.CannotLoadBeanClassException: Cannot find class [org.springframework.http.converter.json.MappingJacksonHttpMessageConverter] for bean with name 'mappingJacksonHttpMessageConverter' defined in class path resource [spring-mvc.xml]; nested exception is java.lang.ClassNotFoundException: org.springframework.http.converter.json.MappingJacksonHttpMessageConverter

找不到對應的類:

將下面的包引入你的專案即可:

  <dependency>  
            <groupId>com.fasterxml.jackson.core</groupId>  
            <artifactId>jackson-core</artifactId>  
            <version>2.6.0</version>  
        </dependency>  
        <dependency>  
            <groupId>com.fasterxml.jackson.core</groupId>  
            <artifactId>jackson-databind</artifactId>  
            <version>2.6.0</version>  
        </dependency>  
        <dependency>  
            <groupId>com.fasterxml.jackson.core</groupId>  
            <artifactId>jackson-annotations</artifactId>  
            <version>2.6.0</version>  
        </dependency> 

最後,將我的配置和pol.xml檔案貼出來吧:

spring-mybatis.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:p="http://www.springframework.org/schema/p"
	xmlns:context="http://www.springframework.org/schema/context"
	xmlns:mvc="http://www.springframework.org/schema/mvc"
	xsi:schemaLocation="http://www.springframework.org/schema/beans  
	http://www.springframework.org/schema/beans/spring-beans-3.1.xsd  
	http://www.springframework.org/schema/context  
	http://www.springframework.org/schema/context/spring-context-3.1.xsd  
	http://www.springframework.org/schema/mvc  
	http://www.springframework.org/schema/mvc/spring-mvc-4.0.xsd">
	
	<!-- 引入配置檔案 -->
	<bean id="propertyConfigurer"
		class="org.springframework.beans.factory.config.PropertyPlaceholderConfigurer">
		<property name="location" value="classpath:jdbc.properties" />
	</bean>

	<bean id="dataSource" class="org.apache.commons.dbcp.BasicDataSource"
		destroy-method="close">
		<property name="driverClassName" value="${driver}" />
		<property name="url" value="${url}" />
		<property name="username" value="${username}" />
		<property name="password" value="${password}" />
		<!-- 初始化連線大小 -->
		<property name="initialSize" value="${initialSize}"></property>
		<!-- 連線池最大數量 -->
		<property name="maxActive" value="${maxActive}"></property>
		<!-- 連線池最大空閒 -->
		<property name="maxIdle" value="${maxIdle}"></property>
		<!-- 連線池最小空閒 -->
		<property name="minIdle" value="${minIdle}"></property>
		<!-- 獲取連線最大等待時間 -->
		<property name="maxWait" value="${maxWait}"></property>
	</bean>

	<!-- spring和MyBatis完美整合,不需要mybatis的配置對映檔案 -->
	<bean id="sqlSessionFactory" class="org.mybatis.spring.SqlSessionFactoryBean">
		<property name="dataSource" ref="dataSource" />
		<!-- 自動掃描mapper.xml檔案 -->
		<property name="configLocation" value="classpath:mybatis/mybatis-config.xml"></property>
		<property name="mapperLocations" value="classpath:mybatis/mapper/*.xml"></property>
	</bean>

	<!-- DAO介面所在包名,Spring會自動查詢其下的類 -->
	<bean class="org.mybatis.spring.mapper.MapperScannerConfigurer">
		<property name="basePackage" value="com.yunva.admin.business.dao" />
		<property name="sqlSessionFactoryBeanName" value="sqlSessionFactory"></property>
	</bean>

	<!-- (事務管理)transaction manager, use JtaTransactionManager for global tx -->
	<bean id="transactionManager"
		class="org.springframework.jdbc.datasource.DataSourceTransactionManager">
		<property name="dataSource" ref="dataSource" />
	</bean>
	<context:annotation-config/>
	<!-- 自動掃描 -->
	<context:component-scan base-package="com.yunva.admin.business" />

</beans>
spring-mvc.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:p="http://www.springframework.org/schema/p"
	xmlns:context="http://www.springframework.org/schema/context"
	xmlns:mvc="http://www.springframework.org/schema/mvc"
	xsi:schemaLocation="http://www.springframework.org/schema/beans  
	http://www.springframework.org/schema/beans/spring-beans-3.1.xsd  
	http://www.springframework.org/schema/context  
	http://www.springframework.org/schema/context/spring-context-3.1.xsd  
	http://www.springframework.org/schema/mvc  
	http://www.springframework.org/schema/mvc/spring-mvc-4.0.xsd">
	
	<!-- 自動掃描該包,使SpringMVC認為包下用了@controller註解的類是控制器 -->
	<context:component-scan base-package="com.yunva.admin.business.*" />
	<mvc:annotation-driven />  
	<mvc:resources location="/static/"  mapping="/static/**" />
	<!--避免IE執行AJAX時,返回JSON出現下載檔案 -->
	<bean id="mappingJacksonHttpMessageConverter"
		class="org.springframework.http.converter.json.MappingJackson2HttpMessageConverter">
		<property name="supportedMediaTypes">
			<list>
				<value>text/html;charset=UTF-8</value>
			</list>
		</property>
	</bean>
	<!-- 啟動SpringMVC的註解功能,完成請求和註解POJO的對映 -->
	<bean
		class="org.springframework.web.servlet.mvc.annotation.AnnotationMethodHandlerAdapter">
		<property name="messageConverters">
			<list>
				<ref bean="mappingJacksonHttpMessageConverter" />	<!-- JSON轉換器 -->
			</list>
		</property>
	</bean>
	<!-- 定義跳轉的檔案的前後綴 ,檢視模式配置-->
	<bean class="org.springframework.web.servlet.view.InternalResourceViewResolver">
		<!-- 這裡的配置我的理解是自動給後面action的方法return的字串加上字首和字尾,變成一個 可用的url地址 -->
		<property name="prefix" value="/WEB-INF/views/" />
		<property name="suffix" value=".jsp" />
	</bean>
	
	<!-- 配置檔案上傳,如果沒有使用檔案上傳可以不用配置,當然如果不配,那麼配置檔案中也不必引入上傳元件包 -->
	<bean id="multipartResolver"  
        class="org.springframework.web.multipart.commons.CommonsMultipartResolver">  
        <!-- 預設編碼 -->
        <property name="defaultEncoding" value="utf-8" />  
        <!-- 檔案大小最大值 -->
        <property name="maxUploadSize" value="10485760000" />  
        <!-- 記憶體中的最大值 -->
        <property name="maxInMemorySize" value="40960" />  
    </bean> 

</beans>
pol.xml:
<?xml version="1.0" encoding="UTF-8"?>
<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>com.yunva.pingchen</groupId>
  <artifactId>MySSM</artifactId>
  <packaging>war</packaging>
  <version>1.0.0</version>
  <name>MySSM Maven Webapp</name>
  
  
  	<properties>
		<!-- spring版本號 -->
		<spring.version>4.2.4.RELEASE</spring.version>
		<!-- mybatis版本號 -->
		<mybatis.version>3.2.7</mybatis.version>
		<!-- log4j日誌檔案管理包版本 -->
		<slf4j.version>1.7.7</slf4j.version>
		<log4j.version>1.2.17</log4j.version>
	</properties>
  <dependencies>
    <dependency>
      <groupId>junit</groupId>
      <artifactId>junit</artifactId>
      <version>3.8.1</version>
      <scope>test</scope>
    </dependency>
    <!-- 匯入java ee jar 包 -->  
	    <dependency>  
	        <groupId>javax</groupId>  
	        <artifactId>javaee-api</artifactId>  
	        <version>7.0</version>  
	    </dependency> 
      
      	<dependency>
			<groupId>junit</groupId>
			<artifactId>junit</artifactId>
			<version>4.11</version>
			<!-- 表示開發的時候引入,釋出的時候不會載入此包 -->
			<scope>test</scope>
		</dependency>
		<!-- spring核心包 -->
		<dependency>
			<groupId>org.springframework</groupId>
			<artifactId>spring-core</artifactId>
			<version>${spring.version}</version>
		</dependency>

		<dependency>
			<groupId>org.springframework</groupId>
			<artifactId>spring-web</artifactId>
			<version>${spring.version}</version>
		</dependency>
		<dependency>
			<groupId>org.springframework</groupId>
			<artifactId>spring-oxm</artifactId>
			<version>${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>

		<dependency>
			<groupId>org.springframework</groupId>
			<artifactId>spring-webmvc</artifactId>
			<version>${spring.version}</version>
		</dependency>
		<dependency>
			<groupId>org.springframework</groupId>
			<artifactId>spring-aop</artifactId>
			<version>${spring.version}</version>
		</dependency>

		<dependency>
			<groupId>org.springframework</groupId>
			<artifactId>spring-context-support</artifactId>
			<version>${spring.version}</version>
		</dependency>

		<dependency>
			<groupId>org.springframework</groupId>
			<artifactId>spring-test</artifactId>
			<version>${spring.version}</version>
		</dependency>
		<!-- mybatis核心包 -->
		<dependency>
			<groupId>org.mybatis</groupId>
			<artifactId>mybatis</artifactId>
			<version>${mybatis.version}</version>
		</dependency>
		<!-- mybatis/spring包 -->
		<dependency>
			<groupId>org.mybatis</groupId>
			<artifactId>mybatis-spring</artifactId>
			<version>1.2.2</version>
		</dependency>
		<!-- 匯入java ee jar 包 -->
		<dependency>
			<groupId>javax</groupId>
			<artifactId>javaee-api</artifactId>
			<version>7.0</version>
		</dependency>
		<!-- 匯入Mysql資料庫連結jar包 -->
		<dependency>
			<groupId>mysql</groupId>
			<artifactId>mysql-connector-java</artifactId>
			<version>5.1.38</version>
		</dependency>
		<!-- 匯入dbcp的jar包,用來在applicationContext.xml中配置資料庫 -->
		<dependency>
			<groupId>commons-dbcp</groupId>
			<artifactId>commons-dbcp</artifactId>
			<version>1.2.2</version>
		</dependency>
		<!-- JSTL標籤類 -->
		<dependency>
			<groupId>jstl</groupId>
			<artifactId>jstl</artifactId>
			<version>1.2</version>
		</dependency>
		<!-- 日誌檔案管理包 -->
		<!-- log start -->
		<dependency>
			<groupId>log4j</groupId>
			<artifactId>log4j</artifactId>
			<version>${log4j.version}</version>
		</dependency>
		
		
		<!-- 格式化物件,方便輸出日誌 -->
		<dependency>
			<groupId>com.alibaba</groupId>
			<artifactId>fastjson</artifactId>
			<version>1.1.41</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>
		<!-- log end -->
		<!-- 映入JSON -->
		<dependency>
			<groupId>org.codehaus.jackson</groupId>
			<artifactId>jackson-mapper-asl</artifactId>
			<version>1.9.13</version>
		</dependency>
		<dependency>  
		    <groupId>org.codehaus.jackson</groupId>  
		    <artifactId>jackson-core-lgpl</artifactId>  
		    <version>1.9.6</version>  
		</dependency>  
		<dependency>  
		    <groupId>org.codehaus.jackson</groupId>  
		    <artifactId>jackson-mapper-lgpl</artifactId>  
		    <version>1.9.6</version>  
		</dependency>
		
		
		<dependency>  
            <groupId>com.fasterxml.jackson.core</groupId>  
            <artifactId>jackson-core</artifactId>  
            <version>2.6.0</version>  
        </dependency>  
        <dependency>  
            <groupId>com.fasterxml.jackson.core</groupId>  
            <artifactId>jackson-databind</artifactId>  
            <version>2.6.0</version>  
        </dependency>  
        <dependency>  
            <groupId>com.fasterxml.jackson.core</groupId>  
            <artifactId>jackson-annotations</artifactId>  
            <version>2.6.0</version>  
        </dependency>  
				 
		<!-- 上傳元件包 -->
		<dependency>
			<groupId>commons-fileupload</groupId>
			<artifactId>commons-fileupload</artifactId>
			<version>1.3.1</version>
		</dependency>
		<dependency>
			<groupId>commons-io</groupId>
			<artifactId>commons-io</artifactId>
			<version>2.4</version>
		</dependency>
		<dependency>
			<groupId>commons-codec</groupId>
			<artifactId>commons-codec</artifactId>
			<version>1.9</version>
		</dependency> 
		<!-- https://mvnrepository.com/artifact/commons-pool/commons-pool -->
		<dependency>
		    <groupId>commons-pool</groupId>
		    <artifactId>commons-pool</artifactId>
		    <version>1.5.5</version>
		</dependency>
				
  </dependencies>
  <build>
    <finalName>MySSM</finalName>
  </build>
</project>