关于spring+spring mvc+mybatis项目配置其实网上资料比较多了,但是本人发现大多资料其实不全,甚至有些有误导人的嫌疑。为了自己做个记录方便日后查阅,同时也方便他人,这里再不厌其烦的做一次基础的梳理。
创建项目
打开Intellij IDEA新建maven-archetype-webapp项目,基本按照如下图顺序照做就行了。
2、接下来的步骤
GroupId和ArtifactId跟着感觉走,随便填写,下一步默认图片省略,最后一步填写项目名称和项目地址图片也省略了,最后finish完成项目创建,这里创建一个名叫Spring的项目。
引入相关jar包
这里使用的是maven进行包管理那么在pom.xml中直接引用相关包,这里直接贴出完整的pom.xml代码,方便引用。
<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>4.0.0modelVersion>
<groupId>com.yorykygroupId>
<artifactId>SpringartifactId>
<packaging>warpackaging>
<version>1.0-SNAPSHOTversion>
<name>Spring Maven Webappname>
<url>http://maven.apache.orgurl>
<dependencies>
<dependency>
<groupId>junitgroupId>
<artifactId>junitartifactId>
<version>3.8.1version>
<scope>testscope>
dependency>
<dependency>
<groupId>javaeegroupId>
<artifactId>javaee-apiartifactId>
<version>5version>
dependency>
<dependency>
<groupId>org.springframeworkgroupId>
<artifactId>spring-coreartifactId>
<version>4.2.3.RELEASEversion>
dependency>
<dependency>
<groupId>org.springframeworkgroupId>
<artifactId>spring-beansartifactId>
<version>4.2.3.RELEASEversion>
dependency>
<dependency>
<groupId>org.springframeworkgroupId>
<artifactId>spring-contextartifactId>
<version>4.2.3.RELEASEversion>
dependency>
<dependency>
<groupId>org.springframeworkgroupId>
<artifactId>spring-txartifactId>
<version>4.2.3.RELEASEversion>
dependency>
<dependency>
<groupId>org.springframeworkgroupId>
<artifactId>spring-aspectsartifactId>
<version>4.2.3.RELEASEversion>
dependency>
<dependency>
<groupId>org.springframeworkgroupId>
<artifactId>spring-context-supportartifactId>
<version>4.2.3.RELEASEversion>
dependency>
<dependency>
<groupId>org.springframeworkgroupId>
<artifactId>spring-jdbcartifactId>
<version>4.2.3.releaseversion>
dependency>
<dependency>
<groupId>org.springframeworkgroupId>
<artifactId>spring-testartifactId>
<version>4.2.3.RELEASEversion>
dependency>
<dependency>
<groupId>org.springframeworkgroupId>
<artifactId>spring-webartifactId>
<version>4.2.3.RELEASEversion>
dependency>
<dependency>
<groupId>org.springframeworkgroupId>
<artifactId>spring-webmvcartifactId>
<version>4.2.3.RELEASEversion>
dependency>
<dependency>
<groupId>org.mybatisgroupId>
<artifactId>mybatisartifactId>
<version>3.2.2version>
dependency>
<dependency>
<groupId>org.mybatisgroupId>
<artifactId>mybatis-springartifactId>
<version>1.3.0version>
dependency>
<dependency>
<groupId>org.javassistgroupId>
<artifactId>javassistartifactId>
<version>3.17.1-GAversion>
dependency>
<dependency>
<groupId>cglibgroupId>
<artifactId>cglibartifactId>
<version>2.2.2version>
dependency>
<dependency>
<groupId>c3p0groupId>
<artifactId>c3p0artifactId>
<version>0.9.1.2version>
dependency>
<dependency>
<groupId>com.github.norauigroupId>
<artifactId>ojdbc7artifactId>
<version>12.1.0.2version>
dependency>
<dependency>
<groupId>org.postgresqlgroupId>
<artifactId>postgresqlartifactId>
<version>9.4-1206-jdbc42version>
dependency>
dependencies>
<build>
<finalName>SpringfinalName>
build>
project>
成功后可在External Libraries中查看引用后的包,但然有时会出现网络问题引用不起的现象,比如博主在家里就出现了这种情况,暂时不管,估计得换了映像地址之类的,先跳过。
spring mvc路由
1、修改web.xml代码,直接贴出:
<web-app xmlns="http://xmlns.jcp.org/xml/ns/javaee"
xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
xsi:schemaLocation="http://xmlns.jcp.org/xml/ns/javaee http://xmlns.jcp.org/xml/ns/javaee/web-app_3_1.xsd"
version="3.1">
<context-param>
<param-name>contextConfigLocationparam-name>
<param-value>classpath:applicationContext.xmlparam-value>
context-param>
<listener>
<listener-class>org.springframework.web.context.ContextLoaderListenerlistener-class>
listener>
<servlet>
<servlet-name>springmvcservlet-name>
<servlet-class>org.springframework.web.servlet.DispatcherServletservlet-class>
<init-param>
<param-name>contextConfigLocationparam-name>
<param-value>classpath:applicationContext.xmlparam-value>
init-param>
<load-on-startup>1load-on-startup>
servlet>
<servlet-mapping>
<servlet-name>springmvcservlet-name>
<url-pattern>/url-pattern>
servlet-mapping>
<filter>
<filter-name>CharacterEncodingFilterfilter-name>
<filter-class>org.springframework.web.filter.CharacterEncodingFilterfilter-class>
<init-param>
<param-name>encodingparam-name>
<param-value>utf-8param-value>
init-param>
<init-param>
<param-name>forceEncodingparam-name>
<param-value>trueparam-value>
init-param>
filter>
<filter-mapping>
<filter-name>CharacterEncodingFilterfilter-name>
<url-pattern>/*url-pattern>
<url-pattern>/views/*url-pattern>
filter-mapping>
web-app>
2、resources资源目录下创建applicationContext.xml配置文件,贴出代码:
<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:context="http://www.springframework.org/schema/context"
xmlns:p="http://www.springframework.org/schema/p"
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/aop
http://www.springframework.org/schema/aop/spring-aop-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/context
http://www.springframework.org/schema/context/spring-context-4.1.xsd
http://www.springframework.org/schema/mvc
http://www.springframework.org/schema/mvc/spring-mvc.xsd">
<context:component-scan base-package="com.yoryky.controller"/>
<context:component-scan base-package="com.yoryky.service"/>
<context:component-scan base-package="com.yoryky.dao"/>
<mvc:default-servlet-handler/>
<mvc:annotation-driven/>
<bean id="jspViewResolver" class="org.springframework.web.servlet.view.InternalResourceViewResolver">
<property name="prefix" value="/WEB-INF/views/"/>
<property name="suffix" value=".jsp"/>
bean>
<bean id="dataSource" class="com.mchange.v2.c3p0.ComboPooledDataSource">
<property name="driverClass" value="${jdbc.driverClass}">property>
<property name="jdbcUrl" value="${jdbc.jdbcUrl}">property>
<property name="user" value="${jdbc.user}">property>
<property name="password" value="${jdbc.password}">property>
bean>
<context:property-placeholder location="classpath:jdbc.properties"/>
<bean id="sessionFactory" class="org.mybatis.spring.SqlSessionFactoryBean">
<property name="configLocation" value="classpath:mybatis-config.xml">property>
<property name="dataSource" ref="dataSource">property>
<property name="mapperLocations" value="classpath:mapping/*.xml"/>
bean>
<bean class="org.mybatis.spring.mapper.MapperScannerConfigurer">
<property name="sqlSessionFactoryBeanName" value="sessionFactory">property>
<property name="basePackage" value="com.yoryky.dao">property>
bean>
<bean id="transactionManager" class="org.springframework.jdbc.datasource.DataSourceTransactionManager">
<property name="dataSource" ref="dataSource">property>
bean>
<tx:advice id="txAdvice" transaction-manager="transactionManager">
<tx:attributes>
<tx:method name="add*" isolation="DEFAULT" propagation="REQUIRED"/>
tx:attributes>
tx:advice>
<aop:config>
<aop:pointcut expression="execution(* *..service.*.*(..))" id="stockPointcut"/>
<aop:advisor advice-ref="txAdvice" pointcut-ref="stockPointcut"/>
aop:config>
beans>
其中以下代码负责配置注解controller路由:
<context:component-scan base-package="com.yoryky.controller"/>
<mvc:annotation-driven/>
以下代码代码负责指定视图地址,及视图文件类型:
<bean id="jspViewResolver" class="org.springframework.web.servlet.view.InternalResourceViewResolver">
<property name="prefix" value="/WEB-INF/views/"/>
<property name="suffix" value=".jsp"/>
bean>
如下图目录结构创建controller目录,同时把其它文件目录结构一起照着创建了吧,具体干啥的看看目录名应该就知道了啦,不解释。贴出BaseController和UserController代码:
1、BaseController代码:
package com.yoryky.controller;
import org.springframework.web.bind.annotation.ModelAttribute;
import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;
/**
* Created by yoryky on 2017/8/9.
*/
public class BaseController {
protected HttpServletRequest request;
protected HttpServletResponse response;
@ModelAttribute
public void setRequestAndResponse(HttpServletRequest request, HttpServletResponse response){
this.request = request;
this.response = response;
}
}
2、UserInfoController代码:
package com.yoryky.controller;
import com.yoryky.entity.UserInfo;
import com.yoryky.service.IUserInfoService;
import org.springframework.stereotype.Controller;
import org.springframework.web.bind.annotation.RequestMapping;
import org.springframework.web.bind.annotation.RequestMethod;
import javax.annotation.Resource;
/**
* Created by yoryky on 2017/8/9.
*/
@Controller
@RequestMapping(value = "/user")
public class UserController extends BaseController {
@Resource
private IUserInfoService service;
@RequestMapping(value = "/",method = RequestMethod.GET)
public String indexAction(){
return "user/welcome";
}
@RequestMapping(value = "/save",method = RequestMethod.POST)
public String save(){
String uname = request.getParameter("name");
Integer uage = Integer.valueOf(request.getParameter("age"));
UserInfo info = new UserInfo();
info.setAge(uage);
info.setName(uname);
service.add(info);
return "user/welcome";
}
@RequestMapping(value = "/home",method = RequestMethod.GET)
public String home(){
return "user/home";
}
}
至于IUserInfoService 在测试路由这一块用不到,还有save方法都是后面测试mybatis的,也用不到,在这里可以注释掉。
WEB-INF->views->user目录下创建home.jsp页面,随便写点东西,测试显示用。
测试时通过你配置的localhost:port/user/home/访问home方法。其中RequestMapping注释定义路由路径,而return 返回视图路径,根视图在前面已经配置成了views目录 ;
这样一来路由访问页面的问题解决了。
mybatis访问数据库
1、entity中创建UserInfo实体类:
public class UserInfo {
private Integer id;
private String name;
private Integer age;
public Integer getId() {
return id;
}
public void setId(Integer id) {
this.id = id;
}
public String getName() {
return name;
}
public void setName(String name) {
this.name = name;
}
public Integer getAge() {
return age;
}
public void setAge(Integer age) {
this.age = age;
}
}
这里写代码片
2、dao中创建接口IUserInfoDAO,并且该接口不需自己代码实例化,添加@Repository(“userInfoDAO”)代码自行实例化,“userInfoDAO”字段与后面的@Resource(“userInfoDAO”)中的字段对应就行。
package com.yoryky.dao;
import com.yoryky.entity.UserInfo;
import org.springframework.stereotype.Repository;
/**
* Created by yoryky on 2017/8/9.
*/
@Repository("userInfoDAO")
public interface IUserInfoDAO {
public void add(UserInfo info);
}
3、service中实现IUserInfoService借口,和实现该接口的UserInfoService实例。
package com.yoryky.service;
import com.yoryky.entity.UserInfo;
/**
* Created by yoryky on 2017/8/9.
*/
public interface IUserInfoService {
public void add(UserInfo info);
}
package com.yoryky.service;
import com.yoryky.dao.IUserInfoDAO;
import com.yoryky.entity.UserInfo;
import org.springframework.stereotype.Service;
import javax.annotation.Resource;
/**
* Created by yoryky on 2017/8/9.
*/
@Service
public class UserInfoService implements IUserInfoService {
@Resource(name = "userInfoDAO")
private IUserInfoDAO dao;
public void add(UserInfo info) {
dao.add(info);
}
public IUserInfoDAO getDao() {
return dao;
}
public void setDao(IUserInfoDAO dao) {
this.dao = dao;
}
}
这里注意dao的@Resouce注释和UserInfoService的@Service注释,后者的注释对应UserInfoController中的service的@Resouce注释,使service自行完成实例化。现在可以使用UserInfoController的save方法了。
4、测试mybatis访问数据库
添加index.jsp代码:
<%@ page language="java" import="java.util.*" pageEncoding="utf-8"%>
<%
String path = request.getContextPath();
String basePath = request.getScheme()+"://"+request.getServerName()+":"+request.getServerPort()+path+"/";
%>
<html>
<head>
<base href="<%=basePath%>">
<style type="text/css">
form{
margin:0px auto;
width:500px;
padding:20px;
}
style>
<title>title>
head>
<body>
<h1>SSM整合h1>
<form action="/user/save" method="post">
用户名:<input name="name"/> <br/>
用户年龄<input name="age"/><br/>
<input type="submit" value="save"/>
form>
body>
html>
在resouces目录下添加jdbc.properties数据库配置文件,这里贴出本局域网的配置,这里是配置得连接到postgresql的数据库。
jdbc.driverClass=org.postgresql.Driver
jdbc.jdbcUrl=jdbc:postgresql://localhost:5432/yoryky
jdbc.user=sa
jdbc.password=6915
//定义初始连接数
initialSize=2
//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
对应applicationContext.xml中的配置
<bean id="dataSource" class="com.mchange.v2.c3p0.ComboPooledDataSource">
<property name="driverClass" value="${jdbc.driverClass}">property>
<property name="jdbcUrl" value="${jdbc.jdbcUrl}">property>
<property name="user" value="${jdbc.user}">property>
<property name="password" value="${jdbc.password}">property>
bean>
<context:property-placeholder location="classpath:jdbc.properties"/>
添加mybatis-config.xml,mybatis配置文件,对应applicationContext.xml中的配置:
<bean id="sessionFactory" class="org.mybatis.spring.SqlSessionFactoryBean">
<property name="configLocation" value="classpath:mybatis-config.xml">property>
<property name="dataSource" ref="dataSource">property>
<property name="mapperLocations" value="classpath:mapping/*.xml"/>
bean>
这里注意到有个配置
<property name="mapperLocations" value="classpath:mapping/*.xml"/>
对应recources->mapping目录下的xml文件,实际上的数据库访问代码,其中的方法和dao接口方法一一对应,在mapping目录下添加IUserInfoDAO.xml文件,代码为:
<mapper namespace="com.yoryky.dao.IUserInfoDAO">
<select id="add" parameterType="UserInfo">
insert into t_userinfo(name,age) values(#{name},#{age})
select>
mapper>
最后在applicationContext.xml中添加对dao和service自动扫描的配置(如果没有的话,因为前面应该一起添加过了):
<context:component-scan base-package="com.yoryky.service"/>
<context:component-scan base-package="com.yoryky.dao"/>
在本地postgresql添加对应的yoryky数据库和t_userinfo表后,程序正常运行。由于本博客基本已经贴出了所有的代码就不另外上传demo了。
补充说明
1、可在WEB-INF->classes目录下添加logging.properties文件,error-debug**文件可记录下tomcat运行错误信息。
logging.properties文件内容为:
handlers = org.apache.juli.FileHandler, java.util.logging.ConsoleHandler
############################################################
# Handler specific properties.
# Describes specific configuration info for Handlers.
############################################################
org.apache.juli.FileHandler.level = FINE
org.apache.juli.FileHandler.directory = ${catalina.base}/logs
org.apache.juli.FileHandler.prefix = error-debug.
java.util.logging.ConsoleHandler.level = FINE
java.util.logging.ConsoleHandler.formatter = java.util.logging.SimpleFormatter
2、关于静态资料访问配置
在WEB-INF->assets创建css、img、js三个资源目录,在应用静态资源的时候发现无法正常应用,在applicatonContext.xml中添加静态资源路径映射
<mvc:resources location="/WEB-INF/assets/" mapping="/resources/**"/>
其中location对应资源路径,而mapping对应location的映射路径。如按照以上配置在对js、css路径中资源资源访问就类似于
<script src="/resources/js/jquery-1.11.3.min.js">script>
<link rel="stylesheet" href="/resources/css/bootstrap.min.css">
这样的路径方式进行访问。
博主后面将jdbc.properties、mybatis.config.xml、applicationContext.xml分了下类,移到新的目录下,一般而言路径变更IDE会自动在配置文件中更新对应路径配置,如果出现问题,applicationContext.xml配置路径请查看web.xml文件,而另外两个文件的路径配置在applicationContext.xml文件中。
参考文献
1、http://www.cnblogs.com/jingpeipei/p/6291071.html;
2、http://www.importnew.com/22880.html;
3、http://blog.csdn.net/Evankaka/article/details/45790533
4、http://www.cnblogs.com/fangqi/archive/2012/10/28/2743108.html