applicationContext.xml： <?xml version="1.0" encoding="UTF-8"?> <beans xmlns="http://www.springframework.org/schema/beans" xmlns:mvc="http://www.springframework.org/schema/mvc" 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 http://www.springframework.org/schema/mvc http://www.springframework.org/schema/mvc/spring-mvc-3.0.xsd "> <context:property-placeholder location="classpath*:javaniu.properties" /> <context:annotation-config /> <context:component-scan base-package="com.javaniu" /> <mvc:annotation-driven /> <import resource="hibernate-context.xml" /> <bean id="viewResolver" class="org.springframework.web.servlet.view.InternalResourceViewResolver"> <property name="viewClass" value="org.springframework.web.servlet.view.JstlView" /> <property name="prefix"> <value>/WEB-INF/jsp/</value> </property> <property name="suffix" value=".jsp" /> </bean> </beans> hibernate-context.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:aop="http://www.springframework.org/schema/aop" xmlns:tx="http://www.springframework.org/schema/tx" xmlns:jpa="http://www.springframework.org/schema/data/jpa" xsi:schemaLocation=" http://www.springframework.org/schema/beans http://www.springframework.org/schema/beans/spring-beans.xsd http://www.springframework.org/schema/context http://www.springframework.org/schema/context/spring-context.xsd http://www.springframework.org/schema/aop http://www.springframework.org/schema/aop/spring-aop.xsd http://www.springframework.org/schema/tx http://www.springframework.org/schema/tx/spring-tx.xsd http://www.springframework.org/schema/data/jpa http://www.springframework.org/schema/data/jpa/spring-jpa.xsd "> <bean id="dataSource" class="com.mchange.v2.c3p0.ComboPooledDataSource"> <property name="driverClass" value="${datasource.connection.driver_class}" /> <property name="jdbcUrl" value="${datasource.connection.url}" /> <property name="user" value="${datasource.connection.username}" /> <property name="password" value="${datasource.connection.password}" /> <property name="minPoolSize" value="${datasource.connection.minPoolSize}" /> <!--连接池中保留的最大连接数。Default: 15 --> <property name="maxPoolSize" value="${datasource.connection.maxPoolSize}" /> <!--最大空闲时间,60秒内未使用则连接被丢弃。若为0则永不丢弃。Default: 0 --> <property name="maxIdleTime" value="${datasource.connection.maxIdleTime}" /> <!--当连接池中的连接耗尽的时候c3p0一次同时获取的连接数。Default: 3 --> <property name="acquireIncrement" value="${datasource.connection.acquireIncrement}" /> <!--JDBC的标准参数，用以控制数据源内加载的PreparedStatements数量。但由于预缓存的statements 属于单个connection而不是整个连接池。所以设置这个参数需要考虑到多方面的因素。 如果maxStatements与maxStatementsPerConnection均为0，则缓存被关闭。Default: 0 --> <property name="maxStatements" value="${datasource.connection.maxStatements}" /> <!--maxStatementsPerConnection定义了连接池内单个连接所拥有的最大缓存statements数。Default: 0 --> <property name="maxStatementsPerConnection" value="${datasource.connection.maxStatementsPerConnection}" /> <!--初始化时获取三个连接，取值应在minPoolSize与maxPoolSize之间。Default: 3 --> <property name="initialPoolSize" value="${datasource.connection.initialPoolSize}" /> <!--每60秒检查所有连接池中的空闲连接。Default: 0 --> <property name="idleConnectionTestPeriod" value="${datasource.connection.idleConnectionTestPeriod}" /> <!--定义在从数据库获取新连接失败后重复尝试的次数。Default: 30 --> <property name="acquireRetryAttempts" value="${datasource.connection.acquireRetryAttempts}" /> <!--获取连接失败将会引起所有等待连接池来获取连接的线程抛出异常。但是数据源仍有效 保留，并在下次调用getConnection()的时候继续尝试获取连接。如果设为true，那么在尝试 获取连接失败后该数据源将申明已断开并永久关闭。Default: false --> <property name="breakAfterAcquireFailure" value="${datasource.connection.breakAfterAcquireFailure}" /> <!--因性能消耗大请只在需要的时候使用它。如果设为true那么在每个connection提交的 时候都将校验其有效性。建议使用idleConnectionTestPeriod或automaticTestTable 等方法来提升连接测试的性能。Default: false --> <property name="testConnectionOnCheckout" value="${datasource.connection.testConnectionOnCheckout}" /> <property name="checkoutTimeout" value="${datasource.connection.checkoutTimeout}" /> <property name="testConnectionOnCheckin" value="${datasource.connection.testConnectionOnCheckin}" /> <property name="automaticTestTable" value="${datasource.connection.automaticTestTable}" /> <property name="acquireRetryDelay" value="${datasource.connection.acquireRetryDelay}" /> </bean> <tx:annotation-driven transaction-manager="transactionManager" proxy-target-class="true" /> <!-- Declare a JPA entityManagerFactory --> <bean id="entityManagerFactory" class="org.springframework.orm.jpa.LocalContainerEntityManagerFactoryBean"> <property name="packagesToScan" value="com.javaniu" /> <property name="dataSource" ref="dataSource" /> <property name="jpaVendorAdapter"> <bean class="org.springframework.orm.jpa.vendor.HibernateJpaVendorAdapter"> <property name="showSql" value="${hibernate.showSql}" /> <property name="generateDdl" value="true" /> </bean> </property> </bean> <!-- Declare a transaction manager --> <bean id="transactionManager" class="org.springframework.orm.jpa.JpaTransactionManager"> <property name="entityManagerFactory" ref="entityManagerFactory" /> </bean> <!-- Where to find repositories --> <jpa:repositories base-package="com.javaniu.repository" /> </beans> javaniu.properties # database properties ## datasource datasource.connection.driver_class=com.mysql.jdbc.Driver datasource.connection.url=jdbc:mysql://10.32.11.74:3306/jparest?useUnicode=true&characterEncoding=utf-8 datasource.connection.username=root datasource.connection.password=123456 datasource.connection.minPoolSize=1 datasource.connection.maxPoolSize=20 datasource.connection.maxIdleTime=30 datasource.connection.acquireIncrement=10 datasource.connection.maxStatements=0 datasource.connection.maxStatementsPerConnection=0 datasource.connection.initialPoolSize=5 datasource.connection.idleConnectionTestPeriod=30 datasource.connection.acquireRetryAttempts=30 datasource.connection.breakAfterAcquireFailure=true datasource.connection.testConnectionOnCheckout=true datasource.connection.checkoutTimeout=3000 datasource.connection.testConnectionOnCheckin=true datasource.connection.automaticTestTable = c3p0TestTable datasource.connection.acquireRetryDelay = 1000 hibernate.showSql=true