标签:users 默认 创建 vax session springmvc configure 映射文件 jdk
第一步:新建maven项目
如有需要,查看之前的文章:从配置mven环境到maven项目的新建
第二步:在pom.xml文件中加入jar包依赖
特别说明:由于项目需求不同,加入的jar包也不同,我这里是搭建起来作微信开发,并且这是微信开发中途写的,需要时自行抉择。
<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/maven-v4_0_0.xsd"> <modelVersion>4.0.0</modelVersion> <groupId>com.yyc.ssm</groupId> <artifactId>SSM</artifactId> <packaging>war</packaging> <version>1.0</version> <name>SSM Maven Webapp</name> <url>http://maven.apache.org</url> <!-- 初始化框架的版本号 --> <properties> <spring.version>4.3.3.RELEASE</spring.version> </properties> <dependencies> <dependency> <groupId>junit</groupId> <artifactId>junit</artifactId> <version>4.12</version> <scope>test</scope> </dependency> <!-- 加入ServletAPI --> <!-- https://mvnrepository.com/artifact/javax.servlet/javax.servlet-api --> <dependency> <groupId>javax.servlet</groupId> <artifactId>javax.servlet-api</artifactId> <version>3.1.0</version> <scope>provided</scope> </dependency> <!-- MySQL依赖 start --> <dependency> <groupId>mysql</groupId> <artifactId>mysql-connector-java</artifactId> <version>5.1.38</version> </dependency> <!-- MySQL依赖 end --> <!-- 加入MyBatis 依赖 start --> <!-- https://mvnrepository.com/artifact/org.mybatis/mybatis --> <dependency> <groupId>org.mybatis</groupId> <artifactId>mybatis</artifactId> <version>3.4.4</version> </dependency> <!-- mybatis-generator-core 反向生成java代码 --> <dependency> <groupId>org.mybatis.generator</groupId> <artifactId>mybatis-generator-core</artifactId> <version>1.3.5</version> </dependency> <!-- 加入MyBatis 依赖 end --> <!-- Log4j start --> <!-- log4j-slf4j-impl --> <dependency> <groupId>org.apache.logging.log4j</groupId> <artifactId>log4j-slf4j-impl</artifactId> <version>2.6.2</version> </dependency> <!-- log4j-core --> <dependency> <groupId>org.apache.logging.log4j</groupId> <artifactId>log4j-core</artifactId> <version>2.6.2</version> </dependency> <!-- Log4j end --> <!-- 引入Spring(包含SpringMVC) 依赖 start --> <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> <!-- 引入Spring 依赖 end --> <!-- 引用c3p0 依赖 start --> <dependency> <groupId>com.mchange</groupId> <artifactId>c3p0</artifactId> <version>0.9.2.1</version> </dependency> <!-- 引用c3p0 依赖 end --> <!-- 引用插件依赖:MyBatis整合Spring --> <dependency> <groupId>org.mybatis</groupId> <artifactId>mybatis-spring</artifactId> <version>1.3.0</version> </dependency> <!-- JSTL --> <dependency> <groupId>jstl</groupId> <artifactId>jstl</artifactId> <version>1.2</version> </dependency> <!-- dom4j 用dom4j能更方便的处理微信平台发过来的xml --> <dependency> <groupId>dom4j</groupId> <artifactId>dom4j</artifactId> <version>1.6.1</version> </dependency> <!-- fastjson 这里只在junit test中有用到 --> <dependency> <groupId>com.alibaba</groupId> <artifactId>fastjson</artifactId> <version>1.2.32</version> </dependency> <!-- fasterxml.jackson start --> <!-- https://mvnrepository.com/artifact/com.fasterxml.jackson.core/jackson-core --> <dependency> <groupId>com.fasterxml.jackson.core</groupId> <artifactId>jackson-core</artifactId> <version>2.8.8</version> </dependency> <!-- https://mvnrepository.com/artifact/com.fasterxml.jackson.core/jackson-databind --> <dependency> <groupId>com.fasterxml.jackson.core</groupId> <artifactId>jackson-databind</artifactId> <version>2.8.8</version> </dependency> <!-- fasterxml.jackson end --> <!-- https://mvnrepository.com/artifact/commons-dbcp/commons-dbcp --> <dependency> <groupId>commons-dbcp</groupId> <artifactId>commons-dbcp</artifactId> <version>1.4</version> </dependency> <!-- https://mvnrepository.com/artifact/commons-fileupload/commons-fileupload --> <dependency> <groupId>commons-fileupload</groupId> <artifactId>commons-fileupload</artifactId> <version>1.3.1</version> </dependency> <!-- commons-httpclient 微信素材上传--> <dependency> <groupId>commons-httpclient</groupId> <artifactId>commons-httpclient</artifactId> <version>3.0</version> </dependency> </dependencies> <build> <finalName>SSM</finalName> <!-- Maven项目编译插件 --> <plugins> <plugin> <artifactId>maven-compiler-plugin</artifactId> <!-- <version>2.3.2</version> --><!-- 不指定时默认采用最新插件版本 --> <configuration> <!-- 根据实际情况设置 JDK --> <source>1.8</source> <!-- 源代码使用的开发版本 --> <target>1.8</target> <!-- 需要生成的目标class文件的编译版本 --> <encoding>UTF-8</encoding> </configuration> </plugin> <!-- <plugin> <groupId>org.apache.maven.plugins</groupId> <artifactId>maven-surefire-plugin</artifactId> <version>2.17</version> <configuration> <testFailureIgnore>true</testFailureIgnore> </configuration> </plugin> --> <plugin> <groupId>org.apache.tomcat.maven</groupId> <artifactId>tomcat7-maven-plugin</artifactId> <version>2.2</version> <configuration> <!-- 使用内置的模拟Tomcat服务器 --> <path>/SSM</path> <uriEncoding>UTF-8</uriEncoding> <port>9528</port> <mode>context</mode> <!-- <contextFile>src/main/webapp/META-INF/context.xml</contextFile> --> <contextReloadable>true</contextReloadable> <!-- <backgroundProcessorDelay>5</backgroundProcessorDelay> --> </configuration> </plugin> <!-- 第二种方式数据库反向生成java --> <plugin> <groupId>org.mybatis.generator</groupId> <artifactId>mybatis-generator-maven-plugin</artifactId> <version>1.3.2</version> <configuration> <verbose>true</verbose> <overwrite>true</overwrite> </configuration> </plugin> </plugins> </build> </project>
第三步:Spring与MyBatis的整合
1、jdbc.properties:
jdbc.driver=com.mysql.jdbc.Driver jdbc.url=jdbc:mysql://localhost:3306/ssm?useUnicode=true&characterEncoding=utf8 jdbc.username=root jdbc.password=123 #定义初始连接数 initialSize=0 #定义最大连接数 maxActive=20 #定义最大空闲 maxIdle=20 #定义最小空闲 minIdle=1 #定义最长等待时间 maxWait=60000
2、spring-mybatis.xml:
配置自动扫描,配置数据库等。里面的包名和一些与项目有关的东西得根据自己的来修改哦。
<?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"> <!-- 自动扫描 --> <context:component-scan base-package="com.yyc" /> <!-- 引入配置文件 --> <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="${jdbc.driver}" /> <property name="url" value="${jdbc.url}" /> <property name="username" value="${jdbc.username}" /> <property name="password" value="${jdbc.password}" /> <!-- 初始化连接大小 --> <property name="initialSize" value="${initialSize}"></property> <!-- 连接池最大数量 --> <property name="maxActive" value="${maxActive}"></property> <!-- 连接池最大空闲 --> <property name="maxIdle" value="${maxIdle}"></property> <!-- 连接池最小空闲 --> <property name="minIdle" value="${minIdle}"></property> <!-- 获取连接最大等待时间 --> <property name="maxWait" value="${maxWait}"></property> </bean> <!-- spring和MyBatis完美整合,不需要mybatis的配置映射文件 --> <bean id="sqlSessionFactory" class="org.mybatis.spring.SqlSessionFactoryBean"> <property name="dataSource" ref="dataSource" /> <!-- 自动扫描mapping.xml文件 --> <property name="mapperLocations" value="classpath:mappers/*.xml"></property> </bean> <!-- DAO接口所在包名,Spring会自动查找其下的类 --> <bean class="org.mybatis.spring.mapper.MapperScannerConfigurer"> <property name="basePackage" value="com.yyc.dao" /> <property name="sqlSessionFactoryBeanName" value="sqlSessionFactory"></property> </bean> <!-- (事务管理)transaction manager, use JtaTransactionManager for global tx --> <bean id="transactionManager" class="org.springframework.jdbc.datasource.DataSourceTransactionManager"> <property name="dataSource" ref="dataSource" /> </bean> </beans>
3、配置Log4j2:加入相关jar包依赖后,直接加入一个配置的log4j2.xml文件到classpath目录下即可。这里可以查看我的另一篇博客 log4j2使用
4、创建一数据库表,用于测试整合:
DROP TABLE IF EXISTS `user_t`; CREATE TABLE `user_t` ( `id` int(11) NOT NULL AUTO_INCREMENT, `user_name` varchar(40) NOT NULL, `password` varchar(255) NOT NULL, `age` int(4) NOT NULL, PRIMARY KEY (`id`) ) ENGINE=InnoDB AUTO_INCREMENT=2 DEFAULT CHARSET=utf8; /*Data for the table `user_t` */ insert into `user_t`(`id`,`user_name`,`password`,`age`) values (1,‘测试‘,‘sfasgfaf‘,24);
5、用MyBatis Generator自动创建代码:可以自动创建mapper文件、dao层和实体类,具体可以查看我的另一篇博客 ,MyBatis Generator的使用
6、测试:由于还没有和springmvc整合,所以只能用junit来测试
Service层:
package com.yyc.service; import com.yyc.entity.UserInfo; /************************************** * @author E-mail:34782655@qq.com * @version 创建时间:2017年6月23日 下午10:05:44 * 类说明: *************************************** */ public interface UserService { public UserInfo getUserById(int userId); }
package com.yyc.service.impl; import javax.annotation.Resource; import org.springframework.beans.factory.annotation.Autowired; import org.springframework.stereotype.Service; import com.yyc.dao.UserInfoMapper; import com.yyc.entity.UserInfo; import com.yyc.service.UserService; /************************************** * @author E-mail:34782655@qq.com * @version 创建时间:2017年6月23日 下午10:10:43 * 类说明: *************************************** */ @Service("userService") public class UserServiceImpl implements UserService { @Resource private UserInfoMapper userInfoDao; /** * create by yyc 2017年6月23日下午10:10:43 */ @Override public UserInfo getUserById(int userId) { // TODO Auto-generated method stub return this.userInfoDao.selectByPrimaryKey(userId); } }
测试类:
package com.yyc.service; import javax.annotation.Resource; import org.junit.Test; import org.junit.runner.RunWith; import org.slf4j.Logger; import org.slf4j.LoggerFactory; import org.springframework.test.context.ContextConfiguration; import org.springframework.test.context.junit4.SpringJUnit4ClassRunner; import com.alibaba.fastjson.JSON; import com.yyc.entity.UserInfo; /************************************** * @author E-mail:34782655@qq.com * @version 创建时间:2017年6月23日 下午10:14:21 * 类说明: *************************************** */ @RunWith(SpringJUnit4ClassRunner.class) //表示继承了SpringJUnit4ClassRunner类 @ContextConfiguration(locations = {"classpath:spring-mybatis.xml"}) public class TestMyBatis { private static Logger logger = LoggerFactory.getLogger(TestMyBatis.class); @Resource private UserService userService; @Test public void test1(){ UserInfo userById = userService.getUserById(1); logger.info(JSON.toJSONString(userById)); } }
当能够打印出一条json格式的用户信息就表示测试通过,Spring和mybatis整合应该是没有问题了。
第四步:整合SpringMVC
配置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"> <!-- 自动扫描该包,使SpringMVC认为包下用了@controller注解的类是控制器 --> <context:component-scan base-package="com.yyc.controller" /> <!--避免IE执行AJAX时,返回JSON出现下载文件 需要fastxml_jackson_core、jackson-databind包的支持--> <bean id="mappingJacksonHttpMessageConverter" class="org.springframework.http.converter.json.MappingJackson2HttpMessageConverter"> <property name="supportedMediaTypes"> <list> <value>text/html;charset=UTF-8</value> </list> </property> </bean> <!-- 启动SpringMVC的注解功能,完成请求和注解POJO的映射 --> <bean class="org.springframework.web.servlet.mvc.annotation.AnnotationMethodHandlerAdapter"> <property name="messageConverters"> <list> <ref bean="mappingJacksonHttpMessageConverter" /> <!-- JSON转换器 --> </list> </property> </bean> <!-- 定义跳转的文件的前后缀 ,视图模式配置--> <bean class="org.springframework.web.servlet.view.InternalResourceViewResolver"> <!-- 这里的配置我的理解是自动给后面action的方法return的字符串加上前缀和后缀,变成一个 可用的url地址 --> <property name="prefix" value="/WEB-INF/jsp/" /> <property name="suffix" value=".jsp" /> </bean> <!-- 配置文件上传,如果没有使用文件上传可以不用配置,当然如果不配,那么配置文件中也不必引入上传组件包 --> <bean id="multipartResolver" class="org.springframework.web.multipart.commons.CommonsMultipartResolver"> <!-- 默认编码 --> <property name="defaultEncoding" value="utf-8" /> <!-- 文件大小最大值 --> <property name="maxUploadSize" value="10485760000" /> <!-- 内存中的最大值 --> <property name="maxInMemorySize" value="40960" /> </bean> </beans>
web.xml:
<?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_3_0.xsd" id="WebApp_ID" version="3.0"> <display-name>Archetype Created Web Application</display-name> <!-- Spring和mybatis的配置文件 --> <context-param> <param-name>contextConfigLocation</param-name> <param-value>classpath:spring-mybatis.xml</param-value> </context-param> <!-- 编码过滤器 --> <filter> <filter-name>encodingFilter</filter-name> <filter-class>org.springframework.web.filter.CharacterEncodingFilter</filter-class> <async-supported>true</async-supported> <init-param> <param-name>encoding</param-name> <param-value>UTF-8</param-value> </init-param> </filter> <filter-mapping> <filter-name>encodingFilter</filter-name> <url-pattern>/*</url-pattern> </filter-mapping> <!-- Spring监听器 --> <listener> <listener-class>org.springframework.web.context.ContextLoaderListener</listener-class> </listener> <!-- 防止Spring内存溢出监听器 --> <listener> <listener-class>org.springframework.web.util.IntrospectorCleanupListener</listener-class> </listener> <!-- Spring MVC servlet --> <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:spring-mvc.xml</param-value> </init-param> <load-on-startup>1</load-on-startup> <async-supported>true</async-supported> </servlet> <servlet-mapping> <servlet-name>SpringMVC</servlet-name> <!-- 此处可以可以配置成*.do,对应struts的后缀习惯 改成/*请求不到 原因不详--> <url-pattern>/</url-pattern> </servlet-mapping> <welcome-file-list> <welcome-file>/index.jsp</welcome-file> </welcome-file-list> </web-app>
在WEB-INFO下建一个jsp文件夹,再建一个showUser.jsp用户测试,也可以不用建jsp文件夹,看个人爱好咯。
showUser.jsp:显示一下userName
<%@ page language="java" import="java.util.*" pageEncoding="utf-8"%> <!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN"> <html> <head> <title>显示一个User</title> </head> <body> ${user.userName} </body> </html>
建Controller层和文件:
MainController.java:
package com.yyc.controller; import javax.annotation.Resource; import javax.servlet.http.HttpServletRequest; import org.slf4j.Logger; import org.slf4j.LoggerFactory; import org.springframework.stereotype.Controller; import org.springframework.ui.Model; import org.springframework.web.bind.annotation.RequestMapping; import org.springframework.web.bind.annotation.ResponseBody; import com.yyc.entity.UserInfo; import com.yyc.service.UserService; /************************************** * @author E-mail:34782655@qq.com * @version 创建时间:2017年6月23日 下午4:18:25 * 类说明: *************************************** */ @Controller @RequestMapping(value="/main") public class MainController { private static Logger logger = LoggerFactory.getLogger(MainController.class); /** * 1、@Autowired与@Resource都可以用来装配bean. 都可以写在字段上,或写在setter方法上。 2、@Autowired默认按类型装配(这个注解是属业spring的),默认情况下必须要求依赖对象必须存在, 如果要允许null 值,可以设置它的required属性为false,如:@Autowired(required=false) , 如果我们想使用名称装配可以结合@Qualifier注解进行使用,如下: @Autowired() @Qualifier("baseDao") private BaseDao baseDao; 3、@Resource(这个注解属于J2EE的),默认安照名称进行装配,名称可以通过name属性进行指定, 如果没有指定name属性,当注解写在字段上时,默认取字段名进行按照名称查找, 如果注解写在setter方法上默认取属性名进行装配。 当找不到与名称匹配的bean时才按照类型进行装配。 但是需要注意的是,如果name属性一旦指定,就只会按照名称进行装配。 */ @Resource private UserService userService; @RequestMapping(value="/test") @ResponseBody public String testConnection(){ logger.info("进入test方法..."); return "请求/main/test成功!"; } @RequestMapping("/showUser") public String toIndex(HttpServletRequest request,Model model){ logger.info("进入showUser方法..."); int userId = Integer.parseInt(request.getParameter("id")); UserInfo user = this.userService.getUserById(userId); model.addAttribute("user", user); return "showUser"; } }
第五步:测试
浏览器输入地址访问,如:http://localhost:8808/SSM/main/showUser 能够正常访问并显示userName(这里是“测试”这两个字),就可以说明SSM整合,成功了!
标签:users 默认 创建 vax session springmvc configure 映射文件 jdk
原文地址:http://www.cnblogs.com/hyyq/p/7087459.html