项目源码Github:https://github.com/csuldw/SSM_OEP
通过前面两个博文 Spring+SpringMVC+Mybatis整合系列(一)Maven安装和Eclipse配置 和 Spring+SpringMVC+Mybatis整合系列(二)Eclipse新建Maven web项目的讲解,我们的项目已经新建好了。这一部分将是最长的一部分,也是最重要的一部分。如果你知道搭建环境并且知道怎么新建Maven web项目,就直接从这篇文章开始吧。
跟之前一样,说明一下版本:
同时给出Spring和mybatis的版本
首先给出一个项目最后的目录结构:
下面来详细介绍如何搭建SSM框架。
说明:项目是在上篇文章的基础上进行进一步的操作,项目名称为oep。
为了方便后面配置是不需要引入相关JAR包,在这里,直接给出所有需要的JAR包,都是些基本的JAR包,每个包的是干什么的都有注释,就不多说了。下面这个是pom.xml文件的jar包的dependencies的内容:
<properties>
<spring.version>4.0.2.RELEASEspring.version>
<mybatis.version>3.2.6mybatis.version>
<slf4j.version>1.7.7slf4j.version>
<log4j.version>1.2.17log4j.version>
properties>
<dependencies>
<dependency>
<groupId>junitgroupId>
<artifactId>junitartifactId>
<version>4.11version>
<scope>testscope>
dependency>
<dependency>
<groupId>org.springframeworkgroupId>
<artifactId>spring-coreartifactId>
<version>${spring.version}version>
dependency>
<dependency>
<groupId>org.springframeworkgroupId>
<artifactId>spring-webartifactId>
<version>${spring.version}version>
dependency>
<dependency>
<groupId>org.springframeworkgroupId>
<artifactId>spring-oxmartifactId>
<version>${spring.version}version>
dependency>
<dependency>
<groupId>org.springframeworkgroupId>
<artifactId>spring-txartifactId>
<version>${spring.version}version>
dependency>
<dependency>
<groupId>org.springframeworkgroupId>
<artifactId>spring-jdbcartifactId>
<version>${spring.version}version>
dependency>
<dependency>
<groupId>org.springframeworkgroupId>
<artifactId>spring-webmvcartifactId>
<version>${spring.version}version>
dependency>
<dependency>
<groupId>org.springframeworkgroupId>
<artifactId>spring-aopartifactId>
<version>${spring.version}version>
dependency>
<dependency>
<groupId>org.springframeworkgroupId>
<artifactId>spring-context-supportartifactId>
<version>${spring.version}version>
dependency>
<dependency>
<groupId>org.springframeworkgroupId>
<artifactId>spring-testartifactId>
<version>${spring.version}version>
dependency>
<dependency>
<groupId>org.mybatisgroupId>
<artifactId>mybatisartifactId>
<version>${mybatis.version}version>
dependency>
<dependency>
<groupId>org.mybatisgroupId>
<artifactId>mybatis-springartifactId>
<version>1.2.2version>
dependency>
<dependency>
<groupId>javaxgroupId>
<artifactId>javaee-apiartifactId>
<version>7.0version>
dependency>
<dependency>
<groupId>mysqlgroupId>
<artifactId>mysql-connector-javaartifactId>
<version>5.1.30version>
dependency>
<dependency>
<groupId>commons-dbcpgroupId>
<artifactId>commons-dbcpartifactId>
<version>1.2.2version>
dependency>
<dependency>
<groupId>jstlgroupId>
<artifactId>jstlartifactId>
<version>1.2version>
dependency>
<dependency>
<groupId>log4jgroupId>
<artifactId>log4jartifactId>
<version>${log4j.version}version>
dependency>
<dependency>
<groupId>com.alibabagroupId>
<artifactId>fastjsonartifactId>
<version>1.1.41version>
dependency>
<dependency>
<groupId>org.slf4jgroupId>
<artifactId>slf4j-apiartifactId>
<version>${slf4j.version}version>
dependency>
<dependency>
<groupId>org.slf4jgroupId>
<artifactId>slf4j-log4j12artifactId>
<version>${slf4j.version}version>
dependency>
<dependency>
<groupId>org.codehaus.jacksongroupId>
<artifactId>jackson-mapper-aslartifactId>
<version>1.9.13version>
dependency>
<dependency>
<groupId>commons-fileuploadgroupId>
<artifactId>commons-fileuploadartifactId>
<version>1.3.1version>
dependency>
<dependency>
<groupId>commons-iogroupId>
<artifactId>commons-ioartifactId>
<version>2.4version>
dependency>
<dependency>
<groupId>commons-codecgroupId>
<artifactId>commons-codecartifactId>
<version>1.9version>
dependency>
dependencies>
在配置pom.xml引入jar包之后,Maven会自动下载。在jar包下载完成后,我碰到了几个问题,下面一一介绍下:
(1)Description Resource Path Location Type JAX-RS (REST Web Services) 2.0 requires Java 1.6 or newer. oep line 1 Maven Java EE Configuration Problem
解决方法:因为maven使用的jdk是老版本的,所以只要在pom.xml中更换java版本即可,下面我只写出pom.xml中build里面的一个plugins,代码如下:
<build>
<finalName>oepfinalName>
<plugins>
<plugin>
<groupId>org.apache.maven.pluginsgroupId>
<artifactId>maven-compiler-pluginartifactId>
<configuration>
<source>1.7source>
<target>1.7target>
configuration>
plugin>
plugins>
(2)问题:Description Resource Path Location Type JavaServer Faces 2.2 requires Dynamic Web Module 2.5 or newer. oep line 1 Maven Java EE Configuration Problem
解决方法:首先,把src–>main–>webapp–> WEB-INF下面web.xml中的Servlet改成3.0。下面打开项目的web.xml,修改内容如下:
<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="schedule-console" version="3.0">
截图如下所示:
然后,在javaEE视角下打开项目.settings文件中的org.eclipse.wst.common.project.facet.core.xml
把1.5改成1.7(上面build中的配置其实已经完成了这一步工作),同时version改为3.0
接着,查看Project Facets:右击项目–>properties–>Project Facets,结果图如下:
OK项目调试正常,错误消除完毕,继续下走!
下面使用JUnit测试Spring和mybatis是否集成好。
我这里使用的是mysql,在mysql中建立一个简单的表:db_oep
数据库测试代码:
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,'xiaoxiao','920304',23);
关于mybatis Generator自动生成映射映射文件的文章,参考Github中的mybatis-generator-core自动生成代码的工具。最后将生成的文件拷贝到目录中来:
目录结构:
下面给出具体的内容:
IUserService.java
package com.oep.ldw.service;
import com.oep.ldw.pojo.User;
public interface IUserService {
public User getUserById(int userId);
}
UserServiceImpl.java
package com.oep.ldw.service.impl;
import javax.annotation.Resource;
import org.springframework.stereotype.Service;
import com.oep.ldw.dao.IUserDao;
import com.oep.ldw.pojo.User;
import com.oep.ldw.service.IUserService;
@Service("userService")
public class UserServiceImpl implements IUserService {
@Resource
private IUserDao userDao;
@Override
public User getUserById(int userId) {
// TODO Auto-generated method stub
return this.userDao.selectByPrimaryKey(userId);
}
}
jdbc.properties
(文件编码修改为utf-8)
driver=com.mysql.jdbc.Driver
url=jdbc:mysql://localhost:3306/db_oep
username=root
password=123456
initialSize=0
maxActive=20
maxIdle=20
minIdle=1
maxWait=60000
这个文件就是用来完成spring和mybatis的整合的。这里面也没多少行配置,主要的就是自动扫描,自动注入,配置数据库。注释也很详细,大家看看就明白了。
spring-mybatis.xml
<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">
<context:component-scan base-package="com.oep.ldw" />
<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="${password}" />
<property name="initialSize" value="${initialSize}">property>
<property name="maxActive" value="${maxActive}">property>
<property name="maxIdle" value="${maxIdle}">property>
<property name="minIdle" value="${minIdle}">property>
<property name="maxWait" value="${maxWait}">property>
bean>
<bean id="sqlSessionFactory" class="org.mybatis.spring.SqlSessionFactoryBean">
<property name="dataSource" ref="dataSource" />
<property name="mapperLocations" value="classpath:com/oep/ldw/mapping/*.xml">property>
bean>
<bean class="org.mybatis.spring.mapper.MapperScannerConfigurer">
<property name="basePackage" value="com.oep.ldw.dao" />
<property name="sqlSessionFactoryBeanName" value="sqlSessionFactory">property>
bean>
<bean id="transactionManager"
class="org.springframework.jdbc.datasource.DataSourceTransactionManager">
<property name="dataSource" ref="dataSource" />
bean>
beans>
下面给出配置文件内容(路径src/main/resources):
#定义LOG输出级别
log4j.rootLogger=INFO,Console,File
#定义日志输出目的地为控制台
log4j.appender.Console=org.apache.log4j.ConsoleAppender
log4j.appender.Console.Target=System.out
#可以灵活地指定日志输出格式,下面一行是指定具体的格式
log4j.appender.Console.layout = org.apache.log4j.PatternLayout
log4j.appender.Console.layout.ConversionPattern=[%c] - %m%n
#文件大小到达指定尺寸的时候产生一个新的文件
log4j.appender.File = org.apache.log4j.RollingFileAppender
#指定输出目录
log4j.appender.File.File = logs/ssm.log
#定义文件最大大小
log4j.appender.File.MaxFileSize = 10MB
# 输出所以日志,如果换成DEBUG表示输出DEBUG以上级别日志
log4j.appender.File.Threshold = ALL
log4j.appender.File.layout = org.apache.log4j.PatternLayout
log4j.appender.File.layout.ConversionPattern =[%p] [%d{yyyy-MM-dd HH\:mm\:ss}][%c]%m%n
测试类在src/test/java中建立,下面测试类中注释掉的部分是不使用Spring时,一般情况下的一种测试方法;如果使用了Spring那么就可以使用注解的方式来引入配置文件和类,然后再将service接口对象注入,就可以进行测试了。
package com.oep.testmybatis;
import javax.annotation.Resource;
import org.apache.log4j.Logger;
import org.junit.Before;
import org.junit.Test;
import org.junit.runner.RunWith;
import org.springframework.context.ApplicationContext;
import org.springframework.context.support.ClassPathXmlApplicationContext;
import org.springframework.test.context.ContextConfiguration;
import org.springframework.test.context.junit4.SpringJUnit4ClassRunner;
import com.alibaba.fastjson.JSON;
import com.oep.ldw.pojo.User;
import com.oep.ldw.service.IUserService;
@RunWith(SpringJUnit4ClassRunner.class) //表示继承了SpringJUnit4ClassRunner类
@ContextConfiguration(locations = {"classpath:spring-mybatis.xml"})
public class TestMyBatis {
private static Logger logger = Logger.getLogger(TestMyBatis.class);
// private ApplicationContext ac = null;
@Resource
private IUserService userService = null;
// @Before
// public void before() {
// ac = new ClassPathXmlApplicationContext("applicationContext.xml");
// userService = (IUserService) ac.getBean("userService");
// }
@Test
public void test1() {
User user = userService.getUserById(1);
// System.out.println(user.getUserName());
// logger.info("值:"+user.getUserName());
logger.info(JSON.toJSONString(user));
}
}
点击右键使用junit测试,如果测试成功,表示Spring和Mybatis已经整合成功了。输出信息使用的是Log4j打印到控制台。
注意:映射文件mapping的一一对应。
到这一步,我们已经完成了Spring和mybatis这两大框架的整合,下面在继续进行SpringMVC的整合。
上面已经完成了2大框架的整合,SpringMVC的配置文件单独放,然后在web.xml中配置整合。
主要是自动扫描控制器
,视图模式
,注解的启动
这三个
<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">
<context:component-scan base-package="com.oep.ldw.controller" />
<bean id="mappingJacksonHttpMessageConverter"
class="org.springframework.http.converter.json.MappingJacksonHttpMessageConverter">
<property name="supportedMediaTypes">
<list>
<value>text/html;charset=UTF-8value>
list>
property>
bean>
<bean
class="org.springframework.web.servlet.mvc.annotation.AnnotationMethodHandlerAdapter">
<property name="messageConverters">
<list>
<ref bean="mappingJacksonHttpMessageConverter" />
list>
property>
bean>
<bean class="org.springframework.web.servlet.view.InternalResourceViewResolver">
<property name="prefix" value="/WEB-INF/jsp/" />
<property name="suffix" value=".jsp" />
bean>
<bean id="multipartResolver"
class="org.springframework.web.multipart.commons.CommonsMultipartResolver">
<property name="defaultEncoding" value="utf-8" />
<property name="maxUploadSize" value="10485760000" />
<property name="maxInMemorySize" value="40960" />
bean>
beans>
这里面对spring-mybatis.xml的引入以及配置的spring-mvc的Servlet就是为了完成SSM整合,之前2框架整合不需要在此处进行任何配置。配置一样有详细注释,不多解释了。
web.xml
<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"
version="3.0">
<display-name>Archetype Created Web Applicationdisplay-name>
<context-param>
<param-name>contextConfigLocationparam-name>
<param-value>classpath:spring-mybatis.xmlparam-value>
context-param>
<filter>
<filter-name>encodingFilterfilter-name>
<filter-class>org.springframework.web.filter.CharacterEncodingFilterfilter-class>
<async-supported>trueasync-supported>
<init-param>
<param-name>encodingparam-name>
<param-value>UTF-8param-value>
init-param>
filter>
<filter-mapping>
<filter-name>encodingFilterfilter-name>
<url-pattern>/*url-pattern>
filter-mapping>
<listener>
<listener-class>org.springframework.web.context.ContextLoaderListenerlistener-class>
listener>
<listener>
<listener-class>org.springframework.web.util.IntrospectorCleanupListenerlistener-class>
listener>
<servlet>
<servlet-name>SpringMVCservlet-name>
<servlet-class>org.springframework.web.servlet.DispatcherServletservlet-class>
<init-param>
<param-name>contextConfigLocationparam-name>
<param-value>classpath:spring-mvc.xmlparam-value>
init-param>
<load-on-startup>1load-on-startup>
<async-supported>trueasync-supported>
servlet>
<servlet-mapping>
<servlet-name>SpringMVCservlet-name>
<url-pattern>/url-pattern>
servlet-mapping>
<welcome-file-list>
<welcome-file>/index.jspwelcome-file>
welcome-file-list>
web-app>
新建jsp页面
userShow.jsp此页面仅输出一下用户名,完成一个完整的简单流程。
<%@ page language="java" import="java.util.*" pageEncoding="utf-8"%>
<html>
<head>
<title>测试title>
head>
<body>
${user.userName}
${user.age }
body>
html>
UserController.java 控制器
package com.oep.ldw.controller;
import javax.annotation.Resource;
import javax.servlet.http.HttpServletRequest;
import org.springframework.stereotype.Controller;
import org.springframework.ui.Model;
import org.springframework.web.bind.annotation.RequestMapping;
import com.oep.ldw.pojo.User;
import com.oep.ldw.service.IUserService;
@Controller
@RequestMapping("/user")
public class UserController {
@Resource
private IUserService userService;
@RequestMapping("/userShow")
public String toIndex(HttpServletRequest request, Model model) {
int userId = Integer.parseInt(request.getParameter("id"));
User user = this.userService.getUserById(userId);
model.addAttribute("user", user);
return "userShow";
}
}
如果你直接使用Run as来运行tomcat无误的话,那么恭喜你,你运气太好了。
结果应该是这样子的:
下面介绍下我的部署过程:
首先把tomcat的conf目录下的tomcat-users.xml导数第二行添加
<role rolename="manager"/>
<role rolename="admin"/>
<role rolename="manager-gui"/>
<user username = "admin" password = "password" roles = "admin,manager,manager-gui,manager-script,manager-jmx,manager-status" />
然后修改maven安装路径下的setting.xml文件,在servers节点中,添加server内容
<server>
<id>tomcatid>
<username>adminusername>
<password>passwordpassword>
server>
接着maven配置文件pom.xml里的tomcat插件一般像下面这样配置:
<plugin>
<artifactId>maven-war-pluginartifactId>
<version>2.1.1version>
<configuration>
<packagingExcludes>WEB-INF/web.xmlpackagingExcludes>
configuration>
plugin>
<plugin>
<groupId>org.codehaus.mojogroupId>
<artifactId>tomcat-maven-pluginartifactId>
<version>1.1version>
<configuration>
<url>http://localhost:8080/manager/texturl>
<server>tomcatserver>
<username>adminusername>
<password>passwordpassword>
<update>trueupdate>
configuration>
plugin>
然后按照下面的方法部署项目,(保证tomcat7是启动的):
然后使用tomcat:redeploy部署项目:
好了,整个项目的配置到此结束,如有问题,请留言即可。