spring4框架搭建

由于项目需求，自行搭建了一套spring4.1的空框架，下面将搭建过程中遇到的问题以及配置列举出来做个记录。

首先创建新的web工程，导入spring所依赖的jar包，如下：

这些jar包是根据需求进行测试后的结果，我使用的是spring自带的连接池，因此未进行合并，根据以后需要再进行合并ibatis或者hibernate

包导入以后，进行配置文件的创建，在src路径下，创建了springservlet-config.xml文件，文件具体配置内容如下

<?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:util="http://www.springframework.org/schema/util"
  xmlns:mvc="http://www.springframework.org/schema/mvc"
  xmlns:tx="http://www.springframework.org/schema/tx"
  xsi:schemaLocation="
      http://www.springframework.org/schema/beans
      http://www.springframework.org/schema/beans/spring-beans.xsd
      http://www.springframework.org/schema/util
      http://www.springframework.org/schema/util/spring-util.xsd
      http://www.springframework.org/schema/context 
      http://www.springframework.org/schema/context/spring-context.xsd
      http://www.springframework.org/schema/mvc
      http://www.springframework.org/schema/mvc/spring-mvc.xsd
      http://www.springframework.org/schema/tx         
      http://www.springframework.org/schema/tx/spring-tx-4.1.xsd" >
 

    <!-- 使用默认的注解映射 --> 
    <mvc:annotation-driven/>

    <!-- 自动扫描controller包中的控制器 -->
    <context:component-scan base-package="springMVC"/>
	<!-- 基于注释的事务，当注释中发现@Transactional时，使用id为“txManager”的事务管理器  -->
	<tx:annotation-driven transaction-manager="txManager"/>
   <bean
		class="org.springframework.web.servlet.mvc.annotation.AnnotationMethodHandlerAdapter">
		<property name="messageConverters">
			<util:list id="beanList">
				<ref bean="stringHttpMessageConverter" />
				<ref bean="mappingJacksonHttpMessageConverter" />
			</util:list>
		</property>
	</bean>
	<bean id="stringHttpMessageConverter"
		class="org.springframework.http.converter.StringHttpMessageConverter" />
	<bean id="mappingJacksonHttpMessageConverter"
		class="org.springframework.http.converter.json.MappingJackson2HttpMessageConverter" />

	<bean id="multipartResolver"
		class="org.springframework.web.multipart.commons.CommonsMultipartResolver">
		<property name="maxUploadSize" value="50000000" />
		<property name="defaultEncoding" value="UTF-8" />
	</bean>

	<bean
		class="org.springframework.web.servlet.view.ContentNegotiatingViewResolver">
		<property name="mediaTypes">
			<map>
				<entry key="json" value="application/json" />
				<entry key="html" value="text/html" />
				<entry key="file" value="application/octet-stream" />
				<entry key="apk" value="application/octet-stream"/>
			</map>
		</property>
		<property name="viewResolvers">
			<list>
				<bean
					class="org.springframework.web.servlet.view.InternalResourceViewResolver">
					<property name="prefix" value="/WEB-INF/pages/" />
					<property name="suffix" value=".jsp" />
				</bean>
			</list>
		</property>
		<property name="defaultViews">
			<list>
				<bean class="org.springframework.web.servlet.view.json.MappingJackson2JsonView" />
			</list>
		</property>
	</bean>
</beans>

然后在WEB-INF路径下，建立了applicationContext.xml配置文件，文件配置内容如下：

<?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:aop="http://www.springframework.org/schema/aop"
    xmlns:tx="http://www.springframework.org/schema/tx" xmlns:context="http://www.springframework.org/schema/context"
    xsi:schemaLocation="
        http://www.springframework.org/schema/beans
        http://www.springframework.org/schema/beans/spring-beans-4.1.xsd        
        http://www.springframework.org/schema/aop         
        http://www.springframework.org/schema/aop/spring-aop-4.1.xsd        
        http://www.springframework.org/schema/context         
        http://www.springframework.org/schema/context/spring-context-4.1.xsd        
        http://www.springframework.org/schema/tx         
        http://www.springframework.org/schema/tx/spring-tx-4.1.xsd
        http://www.springframework.org/schema/cache http://www.springframework.org/schema/cache/spring-cache-4.1.xsd">

	<bean id="dataSource" class="org.apache.commons.dbcp.BasicDataSource" destroy-method="close">
		<property name="driverClassName" value="com.mysql.jdbc.Driver" />
		<property name="url" value="jdbc:mysql://localhost:3306/test?useUnicode=true&characterEncoding=utf-8" />
		<property name="username" value="test" />
		<property name="password" value="test" />
		<property name="maxActive" value="100" />
		<property name="maxIdle" value="30" />
		<property name="maxWait" value="1000" />
		<property name="defaultAutoCommit" value="true" />
		<property name="removeAbandoned" value="true" />
		<property name="removeAbandonedTimeout" value="60" />
	</bean>
	
 	<bean id="jdbcTemplate" class="org.springframework.jdbc.core.JdbcTemplate">  
        <property name = "dataSource" ref="dataSource"/>  
	</bean> 

 	<bean id="txManager" class="org.springframework.jdbc.datasource.DataSourceTransactionManager">
		<property name="dataSource" ref="dataSource"/>
	</bean>
	<tx:annotation-driven transaction-manager="txManager"/>
	
	<bean id="persistenceExceptionTranslationPostProcessor" 
       class="org.springframework.dao.annotation.PersistenceExceptionTranslationPostProcessor" />
</beans>

对应的web.xml配置如下：

<?xml version="1.0" encoding="UTF-8"?>
<web-app xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xmlns="http://java.sun.com/xml/ns/javaee" xsi:schemaLocation="http://java.sun.com/xml/ns/javaee http://java.sun.com/xml/ns/javaee/web-app_2_5.xsd" id="WebApp_ID" version="2.5">
  <display-name>springMVC</display-name>
  <!-- spring MVC配置 -->      
    <servlet>
        <servlet-name>springMVC</servlet-name>
        <servlet-class>org.springframework.web.servlet.DispatcherServlet</servlet-class>
        <init-param>
            <param-name>contextConfigLocation</param-name>
            <param-value>classpath:springservlet-config.xml</param-value>
        </init-param>      
        <load-on-startup>1</load-on-startup>
    </servlet>
    <!-- 载入spring --> 
	<context-param> 
	    <param-name>contextConfigLocation</param-name> 
	    <param-value>/WEB-INF/applicationContext.xml</param-value> 
	</context-param> 
    <listener>
    	<listener-class>
            org.springframework.web.context.ContextLoaderListener
        </listener-class>
    </listener>
    <servlet-mapping> 
        <servlet-name>springMVC</servlet-name> 
        <url-pattern>/client/*</url-pattern>
    </servlet-mapping>
     
    <!-- 配置post表单编码格式（避免中文乱码） -->
    <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>
    </filter>
    <filter-mapping>
        <filter-name>CharacterEncodingFilter</filter-name>
        <url-pattern>/*</url-pattern>
    </filter-mapping>
</web-app>

这些就是所有的配置文件，我把我的目录结构展示下：

由于spring4.1中，注解非常的强大和方便，因此对应代码中全部使用了注解的方式，我写了一个小的例子

首先是controller层：

package springMVC.controller;

import javax.annotation.Resource;

import org.springframework.stereotype.Controller;
import org.springframework.web.bind.annotation.RequestMapping;
import org.springframework.web.bind.annotation.RequestMethod;
import org.springframework.web.servlet.ModelAndView;

import springMVC.service.TestService;

@Controller
public class TestController {

	@Resource
	private TestService testService;
	
	@RequestMapping(value = "/test.{ext}", method = { RequestMethod.GET,RequestMethod.POST })
	public ModelAndView test() throws Exception {
		ModelAndView mv = new ModelAndView();
		String result = testService.printResult();
		mv.addObject("dataMap", result);
		return mv;
	}
}

service接口层：

package springMVC.service;

public interface TestService {

	String printResult();

}

service实现层：

package springMVC.serviceimpl;

import javax.annotation.Resource;

import org.springframework.jdbc.core.JdbcTemplate;
import org.springframework.stereotype.Service;
import org.springframework.transaction.annotation.Transactional;

import springMVC.service.TestService;

@Service
public class TestServiceImpl implements TestService {

	@Resource
	private JdbcTemplate jdbcTemplate;
	
	@Transactional
	@Override
	public String printResult() {
		String result = "阿啊啊";
		StringBuffer sql = new StringBuffer();
		sql.append("update interfaceplan set last_excute_status = '20' where interface_plan_id = '1'");
		jdbcTemplate.update(sql.toString());
		return result;
	}
}

测试下来完整运行，事务处理以及程序运行均正常。

其中，事务处理耗费了部分时间。主要是由于service注入的事务@Transactional不起作用，最后调查和实验结果，是由于我在springservlet-config.xml中，

没有进行查找到事务以后调用声明，即声明如下：

<!-- 基于注释的事务，当注释中发现@Transactional时，使用id为“txManager”的事务管理器  -->
	<tx:annotation-driven transaction-manager="txManager"/>

进行声明之后，完美解决。注：网上有很多提示注解扫描controller和service层冲突情况，我在spring4中测试结果未发现如此情况，是否进行了更正有待调查。

给自己留个记录，也分享给大家。