基本环境:jdkk1.8+idea2017+windows10
[TOC]
第一部分:新建工程以及相关目录结构
- 1,新建maven project,不选择模板,默认即可
- 2,指定工程坐标(GroupId和ArtifactId(项目名)))
- 3,添加基本的package:controller,dao.impl, service.impl
- 4,resources文件夹下新建文件夹 mybatis,spring,source
效果是这样的:
- 3,添加基本的package:controller,dao.impl, service.impl
第二部分:添加相关pom依赖
修改pom.xml文件:
代码如下:
<?xml version="1.0" encoding="UTF-8"?>
<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/xsd/maven-4.0.0.xsd">
<modelVersion>4.0.0</modelVersion>
<groupId>top.yuanfei666</groupId>
<artifactId>build-ssm</artifactId>
<version>1.0-SNAPSHOT</version>
<!-- 集中定义依赖版本号 -->
<properties>
<junit.version>4.12</junit.version>
<spring.version>4.1.3.RELEASE</spring.version>
<mybatis.version>3.2.8</mybatis.version>
<mybatis.spring.version>1.2.2</mybatis.spring.version>
<mybatis.paginator.version>1.2.15</mybatis.paginator.version>
<mysql.version>5.1.32</mysql.version>
<slf4j.version>1.6.4</slf4j.version>
<jackson.version>2.4.2</jackson.version>
<jacksonannoatation.version>2.6.0</jacksonannoatation.version>
<druid.version>1.0.9</druid.version>
<httpclient.version>4.3.5</httpclient.version>
<jstl.version>1.2</jstl.version>
<servlet-api.version>2.5</servlet-api.version>
<jsp-api.version>2.0</jsp-api.version>
<joda-time.version>2.5</joda-time.version>
<commons-lang3.version>3.3.2</commons-lang3.version>
<commons-io.version>1.3.2</commons-io.version>
<commons-net.version>3.3</commons-net.version>
<pagehelper.version>3.4.2-fix</pagehelper.version>
<jsqlparser.version>0.9.1</jsqlparser.version>
<commons-fileupload.version>1.3.1</commons-fileupload.version>
<jedis.version>2.7.2</jedis.version>
<solrj.version>4.10.3</solrj.version>
</properties>
<dependencies>
<!-- 时间操作组件 -->
<dependency>
<groupId>joda-time</groupId>
<artifactId>joda-time</artifactId>
<version>${joda-time.version}</version>
</dependency>
<!-- Apache工具组件 -->
<dependency>
<groupId>org.apache.commons</groupId>
<artifactId>commons-lang3</artifactId>
<version>${commons-lang3.version}</version>
</dependency>
<dependency>
<groupId>org.apache.commons</groupId>
<artifactId>commons-io</artifactId>
<version>${commons-io.version}</version>
</dependency>
<dependency>
<groupId>commons-net</groupId>
<artifactId>commons-net</artifactId>
<version>${commons-net.version}</version>
</dependency>
<!-- Jackson Json处理工具包 -->
<dependency>
<groupId>com.fasterxml.jackson.core</groupId>
<artifactId>jackson-databind</artifactId>
<version>${jackson.version}</version>
</dependency>
<dependency>
<groupId>com.fasterxml.jackson.core</groupId>
<artifactId>jackson-annotations</artifactId>
<version>${jacksonannoatation.version}</version>
</dependency>
<!-- httpclient -->
<dependency>
<groupId>org.apache.httpcomponents</groupId>
<artifactId>httpclient</artifactId>
<version>${httpclient.version}</version>
</dependency>
<!-- 单元测试 -->
<dependency>
<groupId>junit</groupId>
<artifactId>junit</artifactId>
<version>${junit.version}</version>
<scope>test</scope>
</dependency>
<!-- 日志处理 -->
<dependency>
<groupId>org.slf4j</groupId>
<artifactId>slf4j-log4j12</artifactId>
<version>${slf4j.version}</version>
</dependency>
<!-- Mybatis -->
<dependency>
<groupId>org.mybatis</groupId>
<artifactId>mybatis</artifactId>
<version>${mybatis.version}</version>
</dependency>
<dependency>
<groupId>org.mybatis</groupId>
<artifactId>mybatis-spring</artifactId>
<version>${mybatis.spring.version}</version>
</dependency>
<dependency>
<groupId>com.github.miemiedev</groupId>
<artifactId>mybatis-paginator</artifactId>
<version>${mybatis.paginator.version}</version>
</dependency>
<dependency>
<groupId>com.github.pagehelper</groupId>
<artifactId>pagehelper</artifactId>
<version>${pagehelper.version}</version>
</dependency>
<!-- MySql -->
<dependency>
<groupId>mysql</groupId>
<artifactId>mysql-connector-java</artifactId>
<version>${mysql.version}</version>
</dependency>
<!-- 连接池 -->
<dependency>
<groupId>com.alibaba</groupId>
<artifactId>druid</artifactId>
<version>${druid.version}</version>
</dependency>
<!-- Spring -->
<dependency>
<groupId>org.springframework</groupId>
<artifactId>spring-context</artifactId>
<version>${spring.version}</version>
</dependency>
<dependency>
<groupId>org.springframework</groupId>
<artifactId>spring-beans</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-jdbc</artifactId>
<version>${spring.version}</version>
</dependency>
<dependency>
<groupId>org.springframework</groupId>
<artifactId>spring-aspects</artifactId>
<version>${spring.version}</version>
</dependency>
<!-- JSP相关 -->
<dependency>
<groupId>jstl</groupId>
<artifactId>jstl</artifactId>
<version>${jstl.version}</version>
</dependency>
<dependency>
<groupId>javax.servlet</groupId>
<artifactId>servlet-api</artifactId>
<version>${servlet-api.version}</version>
<scope>provided</scope>
</dependency>
<dependency>
<groupId>javax.servlet</groupId>
<artifactId>jsp-api</artifactId>
<version>${jsp-api.version}</version>
<scope>provided</scope>
</dependency>
<!-- 文件上传组件 -->
<dependency>
<groupId>commons-fileupload</groupId>
<artifactId>commons-fileupload</artifactId>
<version>${commons-fileupload.version}</version>
</dependency>
<!-- Redis客户端 -->
<dependency>
<groupId>redis.clients</groupId>
<artifactId>jedis</artifactId>
<version>${jedis.version}</version>
</dependency>
<!-- solr客户端 -->
<dependency>
<groupId>org.apache.solr</groupId>
<artifactId>solr-solrj</artifactId>
<version>${solrj.version}</version>
</dependency>
</dependencies>
<!-- 如果不添加此节点mybatis的mapper.xml文件都会被漏掉。 -->
<build>
<resources>
<resource>
<directory>src/main/java</directory>
<includes>
<include>**/*.properties</include>
<include>**/*.xml</include>
</includes>
<filtering>false</filtering>
</resource>
</resources>
</build>
</project>
第三部分:添加相关xml文件
数据库配置文件:db.properties
内容:
jdbc.url=jdbc:mysql://localhost:3306/test
jdbc.username=root
jdbc.password=18142513872
jdbc.driver=com.mysql.jdbc.Driver
mybatis配置文件:sqlMapConfig.xml
<?xml version="1.0" encoding="UTF-8" ?>
<!DOCTYPE configuration
PUBLIC "-//mybatis.org//DTD Config 3.0//EN"
"http://mybatis.org/dtd/mybatis-3-config.dtd">
<configuration>
<settings>
<!-- 打印查询语句 -->
<setting name="logImpl" value="STDOUT_LOGGING" />
</settings>
<!--配置分页插件-->
<plugins>
<plugin interceptor="com.github.pagehelper.PageHelper">
<!--设置数据库类型-->
<property name="dialect" value="mysql"/>
</plugin>
</plugins>
</configuration>
spring相关配置文件以及相关作用
- 1 applicationContext-dao.xml
<?xml version="1.0" encoding="UTF-8"?>
<beans xmlns="http://www.springframework.org/schema/beans"
xmlns:context="http://www.springframework.org/schema/context" xmlns:p="http://www.springframework.org/schema/p"
xmlns:aop="http://www.springframework.org/schema/aop" xmlns:tx="http://www.springframework.org/schema/tx"
xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
xsi:schemaLocation="http://www.springframework.org/schema/beans http://www.springframework.org/schema/beans/spring-beans-4.0.xsd
http://www.springframework.org/schema/context http://www.springframework.org/schema/context/spring-context-4.0.xsd
http://www.springframework.org/schema/aop http://www.springframework.org/schema/aop/spring-aop-4.0.xsd http://www.springframework.org/schema/tx http://www.springframework.org/schema/tx/spring-tx-4.0.xsd
http://www.springframework.org/schema/util http://www.springframework.org/schema/util/spring-util-4.0.xsd">
<!-- 数据库连接池 -->
<!-- 加载配置文件 -->
<context:property-placeholder location="classpath:resource/*.properties" />
<!-- 数据库连接池 -->
<bean id="dataSource" class="com.alibaba.druid.pool.DruidDataSource"
destroy-method="close">
<property name="url" value="${jdbc.url}" />
<property name="username" value="${jdbc.username}" />
<property name="password" value="${jdbc.password}" />
<property name="driverClassName" value="${jdbc.driver}" />
<property name="maxActive" value="10" />
<property name="minIdle" value="5" />
</bean>
<!-- 配置sqlsessionFactory -->
<bean id="sqlSessionFactory" class="org.mybatis.spring.SqlSessionFactoryBean">
<property name="configLocation" value="classpath:mybatis/sqlMapConfig.xml"></property>
<property name="dataSource" ref="dataSource"></property>
</bean>
<!-- 配置扫描包,加载mapper代理对象 -->
<bean class="org.mybatis.spring.mapper.MapperScannerConfigurer">
<!--注意这里是扫描到.dao,而不是扫描到.impl,毕竟是为了将dao下的接口和dao.impl下的接口实现xml文件
扫描组装-->
<property name="basePackage" value="top.yuanfei666.dao"></property>
</bean>
</beans>
- 2 applicationContext-trans.xml
<?xml version="1.0" encoding="UTF-8"?>
<beans xmlns="http://www.springframework.org/schema/beans"
xmlns:context="http://www.springframework.org/schema/context" xmlns:p="http://www.springframework.org/schema/p"
xmlns:aop="http://www.springframework.org/schema/aop" xmlns:tx="http://www.springframework.org/schema/tx"
xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
xsi:schemaLocation="http://www.springframework.org/schema/beans http://www.springframework.org/schema/beans/spring-beans-4.0.xsd
http://www.springframework.org/schema/context http://www.springframework.org/schema/context/spring-context-4.0.xsd
http://www.springframework.org/schema/aop http://www.springframework.org/schema/aop/spring-aop-4.0.xsd http://www.springframework.org/schema/tx http://www.springframework.org/schema/tx/spring-tx-4.0.xsd
http://www.springframework.org/schema/util http://www.springframework.org/schema/util/spring-util-4.0.xsd">
<!-- 事务管理器 -->
<bean id="transactionManager"
class="org.springframework.jdbc.datasource.DataSourceTransactionManager">
<!-- 数据源 -->
<property name="dataSource" ref="dataSource" />
</bean>
<!-- 通知 -->
<tx:advice id="txAdvice" transaction-manager="transactionManager">
<tx:attributes>
<!-- 传播行为 -->
<tx:method name="save*" propagation="REQUIRED" />
<tx:method name="insert*" propagation="REQUIRED" />
<tx:method name="add*" propagation="REQUIRED" />
<tx:method name="create*" propagation="REQUIRED" />
<tx:method name="delete*" propagation="REQUIRED" />
<tx:method name="update*" propagation="REQUIRED" />
<tx:method name="find*" propagation="SUPPORTS" read-only="true" />
<tx:method name="select*" propagation="SUPPORTS" read-only="true" />
<tx:method name="get*" propagation="SUPPORTS" read-only="true" />
</tx:attributes>
</tx:advice>
<!-- 切面 -->
<aop:config>
<aop:advisor advice-ref="txAdvice"
pointcut="execution(* top.yuanfei666.service.*.*(..))" />
</aop:config>
</beans>
- 3 applicationContext-service.xml
<?xml version="1.0" encoding="UTF-8"?>
<beans xmlns="http://www.springframework.org/schema/beans"
xmlns:context="http://www.springframework.org/schema/context" xmlns:p="http://www.springframework.org/schema/p"
xmlns:aop="http://www.springframework.org/schema/aop" xmlns:tx="http://www.springframework.org/schema/tx"
xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
xsi:schemaLocation="http://www.springframework.org/schema/beans http://www.springframework.org/schema/beans/spring-beans-4.0.xsd
http://www.springframework.org/schema/context http://www.springframework.org/schema/context/spring-context-4.0.xsd
http://www.springframework.org/schema/aop http://www.springframework.org/schema/aop/spring-aop-4.0.xsd http://www.springframework.org/schema/tx http://www.springframework.org/schema/tx/spring-tx-4.0.xsd
http://www.springframework.org/schema/util http://www.springframework.org/schema/util/spring-util-4.0.xsd">
<!-- 扫描包加载Service实现类 -->
<context:component-scan base-package="top.yuanfei666.service"></context:component-scan>
</beans>
- 4 springMVC.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.xsd
http://www.springframework.org/schema/mvc http://www.springframework.org/schema/mvc/spring-mvc-4.0.xsd
http://www.springframework.org/schema/context http://www.springframework.org/schema/context/spring-context.xsd">
<context:component-scan base-package="top.yuanfei666.controller" />
<mvc:annotation-driven />
<bean
class="org.springframework.web.servlet.view.InternalResourceViewResolver">
<property name="prefix" value="/WEB-INF/jsp/" />
<property name="suffix" value=".jsp" />
</bean>
<!--<!– 资源映射 –>-->
<!--<mvc:resources location="/WEB-INF/css/" mapping="/css/**"/>-->
<!--<mvc:resources location="/WEB-INF/js/" mapping="/js/**"/>-->
<!---->
<!-- 解决返回json 406错误 -->
<!-- <bean id="mappingJacksonHttpMessageConverter"
class="org.springframework.http.converter.json.MappingJackson2HttpMessageConverter">
<property name="supportedMediaTypes">
<list>
<value>application/json;charset=UTF-8</value>
<value>text/html;charset=UTF-8</value>
</list>
</property>
</bean>
-->
<!--<!– 定义文件上传解析器 –>-->
<!--<bean id="multipartResolver"-->
<!--class="org.springframework.web.multipart.commons.CommonsMultipartResolver">-->
<!--<!– 设定默认编码 –>-->
<!--<property name="defaultEncoding" value="UTF-8"></property>-->
<!--<!– 设定文件上传的最大值5MB,5*1024*1024 –>-->
<!--<property name="maxUploadSize" value="5242880"></property>-->
<!--</bean>-->
</beans>
各xml文件作用:
applicationContext-dao.xml 配置数据库连接池 dataSourcc ,sessionFactory,扫描mapper代理对象
applicationContext-service.xml 扫描service实现类
applicationContext-trans.xml 事务管理(引用dataSource),通知(txAdvice),切面
出现的问题:
问题1:sqlMapConfig.xml中 url is not registered
解决:
问题2: applicationContext-tans.xml中:
dataSource引用失败:
解决:File-》Project structure-》modules-》spring-》
点击apply之后,查看效果
第四部分 编写相关代码
1,数据库结构:
/*
Navicat MySQL Data Transfer
Source Server : bendi
Source Server Version : 50721
Source Host : localhost:3306
Source Database : test
Target Server Type : MYSQL
Target Server Version : 50721
File Encoding : 65001
Date: 2018-06-25 00:44:20
*/
SET FOREIGN_KEY_CHECKS=0;
-- ----------------------------
-- Table structure for tb_user
-- ----------------------------
DROP TABLE IF EXISTS `tb_user`;
CREATE TABLE `tb_user` (
`id` int(11) NOT NULL AUTO_INCREMENT,
`name` varchar(255) DEFAULT NULL,
`password` varchar(255) DEFAULT NULL,
PRIMARY KEY (`id`)
) ENGINE=InnoDB AUTO_INCREMENT=2 DEFAULT CHARSET=utf8;
-- ----------------------------
-- Records of tb_user
-- ----------------------------
INSERT INTO `tb_user` VALUES ('1', 'python', '123');
2,pojo(javabean) TbUser
package top.yuanfei666.pojo;
public class TbUser {
private Integer id;
private String name;
private String password;
public TbUser() {
}
public TbUser(Integer id, String name, String password) {
this.id = id;
this.name = name;
this.password = password;
}
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 String getPassword() {
return password;
}
public void setPassword(String password) {
this.password = password;
}
}
3,UserMapper与UserMapper.xml
package top.yuanfei666.dao;
import top.yuanfei666.pojo.TbUser;
public interface UserMapper {
TbUser getUserByID(final Integer id);
}
<?xml version="1.0" encoding="UTF-8" ?>
<!DOCTYPE mapper PUBLIC "-//mybatis.org//DTD Mapper 3.0//EN" "http://mybatis.org/dtd/mybatis-3-mapper.dtd" >
<mapper namespace="top.yuanfei666.dao.UserMapper" >
<sql id="userColumns">
tbUser.id as "id",
tbUser.name as "name",
tbUser.password as "password"
</sql>
<select id="getUserByID" parameterType="java.lang.Integer" resultType="top.yuanfei666.pojo.TbUser">
select
<include refid="userColumns"/>
from tb_user tbUser
where id=#{id}
</select>
</mapper>
4,ExampleService以及ExampleServiceImpl
package top.yuanfei666.service;
import top.yuanfei666.pojo.TbUser;
public interface ExampleService {
String example();
TbUser getUser(final int id);
@Service
public class ExampleServiceImpl implements ExampleService {
@Autowired
private UserMapper userMapper;
public ExampleServiceImpl() {
}
@Override
public TbUser getUser(int id) {
return this.userMapper.getUserByID(id);
}
@Override
public String example() {
return "ExampleSrvice!";
}
}
第五部分:框架测试以及问题解决
1,web.xml的修改:
如果没有webapp目录,则按照如下操作:
file-》projectStructure-》modules-》+ -》web-》create artifact
web.xml内容:
注意: /build-ssm/*
<?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" xmlns:web="http://java.sun.com/xml/ns/javaee/web-app_2_5.xsd"
xsi:schemaLocation="http://java.sun.com/xml/ns/javaee http://java.sun.com/xml/ns/javaee/web-app_2_5.xsd"
version="2.5">
<display-name>build-ssm</display-name>
<welcome-file-list>
<welcome-file>index.html</welcome-file>
<welcome-file>index.htm</welcome-file>
<welcome-file>index.jsp</welcome-file>
</welcome-file-list>
<!-- 加载spring容器 -->
<context-param>
<param-name>contextConfigLocation</param-name>
<param-value>classpath:spring/applicationContext-*.xml</param-value>
</context-param>
<listener>
<listener-class>org.springframework.web.context.ContextLoaderListener</listener-class>
</listener>
<!-- 解决post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>
<!-- springmvc的前端控制器 -->
<servlet>
<servlet-name>springMVC</servlet-name>
<servlet-class>org.springframework.web.servlet.DispatcherServlet</servlet-class>
<!-- contextConfigLocation不是必须的, 如果不配置contextConfigLocation, springmvc的配置文件默认在:WEB-INF/servlet的name+"-servlet.xml" -->
<init-param>
<param-name>contextConfigLocation</param-name>
<param-value>classpath:spring/springmvc.xml</param-value>
</init-param>
<load-on-startup>1</load-on-startup>
</servlet>
<servlet-mapping>
<servlet-name>springMVC</servlet-name>
<!--特别注意这里-->
<url-pattern>/build-ssm/*</url-pattern>
</servlet-mapping>
</web-app>
2,启动项目
先指定tomcat,再启动
启动效果:
输入:
http://localhost:8080/build-ssm/example
效果:
问题:
1,
解决:applicationContext-dao.xml
启动:
进一步解决:
提示非法绑定,你没找到,是ibatis相关的,getUserByID
还是mapper的映射文件出现问题,
解决:方式1:
将UserMapper.xml移动到dao下
效果:
解决方式2;待补充
最终的目录结构图: