零.前期设置
0.项目需求
根据表设置一个前后端交互的ssm项目如图
1.pom.xml依赖
<properties>
<project.build.sourceEncoding>UTF-8</project.build.sourceEncoding>
<maven.compiler.source>1.8</maven.compiler.source>
<maven.compiler.target>1.8</maven.compiler.target>
<!-- 版本锁定 -->
<spring.version>5.0.2.RELEASE</spring.version>
<slf4j.version>1.6.6</slf4j.version>
<log4j.version>1.2.12</log4j.version>
<shiro.version>1.2.3</shiro.version>
<mysql.version>5.1.6</mysql.version>
<mybatis.version>3.4.5</mybatis.version>
<spring.security.version>5.0.1.RELEASE</spring.security.version>
</properties>
<dependencies>
<!-- spring -->
<dependency>
<groupId>org.aspectj</groupId>
<artifactId>aspectjweaver</artifactId>
<version>1.6.8</version>
</dependency>
<dependency>
<groupId>org.springframework</groupId>
<artifactId>spring-aop</artifactId>
<version>${spring.version}</version>
</dependency>
<dependency>
<groupId>org.springframework</groupId>
<artifactId>spring-context</artifactId>
<version>${spring.version}</version>
</dependency>
<dependency>
<groupId>org.springframework</groupId>
<artifactId>spring-context-support</artifactId>
<version>${spring.version}</version>
</dependency>
<dependency>
<groupId>org.springframework</groupId>
<artifactId>spring-web</artifactId>
<version>${spring.version}</version>
</dependency>
<dependency>
<groupId>org.springframework</groupId>
<artifactId>spring-orm</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-core</artifactId>
<version>${spring.version}</version>
</dependency>
<dependency>
<groupId>org.springframework</groupId>
<artifactId>spring-test</artifactId>
<version>${spring.version}</version>
</dependency>
<dependency>
<groupId>org.springframework</groupId>
<artifactId>spring-webmvc</artifactId>
<version>${spring.version}</version>
</dependency>
<dependency>
<groupId>org.springframework</groupId>
<artifactId>spring-tx</artifactId>
<version>${spring.version}</version>
</dependency>
<dependency>
<groupId>junit</groupId>
<artifactId>junit</artifactId>
<version>4.12</version>
<scope>test</scope>
</dependency>
<dependency>
<groupId>mysql</groupId>
<artifactId>mysql-connector-java</artifactId>
<version>${mysql.version}</version>
</dependency>
<dependency>
<groupId>javax.servlet</groupId>
<artifactId>javax.servlet-api</artifactId>
<version>3.1.0</version>
<scope>provided</scope>
</dependency>
<dependency>
<groupId>javax.servlet.jsp</groupId>
<artifactId>jsp-api</artifactId>
<version>2.0</version>
<scope>provided</scope>
</dependency>
<dependency>
<groupId>jstl</groupId>
<artifactId>jstl</artifactId>
<version>1.2</version>
</dependency>
<!-- log start -->
<dependency>
<groupId>log4j</groupId>
<artifactId>log4j</artifactId>
<version>${log4j.version}</version>
</dependency>
<dependency>
<groupId>org.slf4j</groupId>
<artifactId>slf4j-api</artifactId>
<version>${slf4j.version}</version>
</dependency>
<dependency>
<groupId>org.slf4j</groupId>
<artifactId>slf4j-log4j12</artifactId>
<version>${slf4j.version}</version>
</dependency>
<!-- log end -->
<dependency>
<groupId>org.mybatis</groupId>
<artifactId>mybatis</artifactId>
<version>${mybatis.version}</version>
</dependency>
<dependency>
<groupId>org.mybatis</groupId>
<artifactId>mybatis-spring</artifactId>
<version>1.3.0</version>
</dependency>
<dependency>
<groupId>c3p0</groupId>
<artifactId>c3p0</artifactId>
<version>0.9.1.2</version>
<type>jar</type>
<scope>compile</scope>
</dependency>
<dependency>
<groupId>com.github.pagehelper</groupId>
<artifactId>pagehelper</artifactId>
<version>5.1.2</version>
</dependency>
<dependency>
<groupId>org.springframework.security</groupId>
<artifactId>spring-security-web</artifactId>
<version>${spring.security.version}</version>
</dependency>
<dependency>
<groupId>org.springframework.security</groupId>
<artifactId>spring-security-config</artifactId>
<version>${spring.security.version}</version>
</dependency>
<dependency>
<groupId>org.springframework.security</groupId>
<artifactId>spring-security-core</artifactId>
<version>${spring.security.version}</version>
</dependency>
<dependency>
<groupId>org.springframework.security</groupId>
<artifactId>spring-security-taglibs</artifactId>
<version>${spring.security.version}</version>
</dependency>
<dependency>
<groupId>com.alibaba</groupId>
<artifactId>druid</artifactId>
<version>1.0.9</version>
</dependency>
<dependency>
<groupId>junit</groupId>
<artifactId>junit</artifactId>
<version>4.13</version>
<scope>test</scope>
</dependency>
</dependencies>
<!-- 添加tomcat7插件 -->
<build>
<plugins>
<plugin>
<groupId>org.apache.tomcat.maven</groupId>
<artifactId>tomcat7-maven-plugin</artifactId>
<version>2.2</version>
</plugin>
</plugins>
</build>
2.父子工程细节1
(1)父工程
(2)子模块
3.模块之间的交互方式【细节2】
(1)代码块
<!-- 其他模块的导入 -->
<dependency>
<groupId>公司名</groupId>
<artifactId>模块名称</artifactId>
<version>版本号</version>
(2)范例
一.springMVC【表现层】
1.web.xml
(1)代码块
<!-- 配置中文过滤器 -->
<filter>
<filter-name>encoding</filter-name>
<filter-class>org.springframework.web.filter.CharacterEncodingFilter</filter-class>
<!-- 配置编码 -->
<init-param>
<param-name>encoding</param-name>
<param-value>utf-8</param-value>
</init-param>
<!-- 加载编码 -->
<init-param>
<param-name>forceEncoding</param-name>
<param-value>true</param-value>
</init-param>
</filter>
<filter-mapping>
<filter-name>encoding</filter-name>
<url-pattern>/*</url-pattern>
</filter-mapping>
<!-- 配置springMVC的服务器 -->
<servlet>
<servlet-name>dispatcherServlet</servlet-name>
<servlet-class>org.springframework.web.servlet.DispatcherServlet</servlet-class>
<init-param>
<param-name>contextConfigLocation</param-name>
<param-value>classpath:springMVC.xml</param-value>
</init-param>
<!-- 设置加载顺序 -->
<load-on-startup>1</load-on-startup>
</servlet>
<servlet-mapping>
<servlet-name>dispatcherServlet</servlet-name>
<url-pattern>/</url-pattern>
</servlet-mapping>
<!-- 配置核心监听器的路径 -->
<context-param>
<param-name>contextConfigLocation</param-name>
<param-value>classpath:applicationContext_service.xml</param-value>
</context-param>
<!-- spring核心监听器 -->
<listener>
<listener-class>org.springframework.web.context.ContextLoaderListener</listener-class>
(2)范例
2.controller类
(1)代码块
import cn.domain.Cost;
import cn.service.CostService;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.stereotype.Controller;
import org.springframework.ui.Model;
import org.springframework.web.bind.annotation.RequestMapping;
import javax.servlet.http.HttpServletResponse;
import java.io.IOException;
import java.util.List;
@Controller
@RequestMapping("/cost")
public class CostController {
@Autowired
private CostService costService;
@RequestMapping("/findAll")
public String findAll(Model model){
System.out.println("表现层执行中");
List<Cost> list = costService.findAll();
for(Cost cost : list){
System.out.println(cost);
}
model.addAttribute("list",list);
return "success";
}
@RequestMapping("/addCost")
public void addCost(Cost cost,HttpServletResponse response) throws IOException {
System.out.println("表现层执行中");
System.out.println(cost);
costService.addCost(cost);
Cost cost2 = costService.findByName(cost.getKname());
response.setContentType("text/html;charset=utf-8");
response.getWriter().write("添加成功" + cost2);
}
@RequestMapping("/deleteById")
public void deleteById(Integer id){
System.out.println("表现层执行中");
costService.deleteById(id);
}
@RequestMapping("/deleteByName")
public void deleteByName(String kname){
System.out.println("表现层执行中");
costService.deleteByName(kname);
}
}
(2)范例
3.日期转换类【自定义转换器】
(1)代码块
import org.springframework.core.convert.converter.Converter;
/**
* 日期类格式转换
*/
import java.text.DateFormat;
import java.text.SimpleDateFormat;
import java.util.Date;
public class DateConverter implements Converter<String, Date> {
@Override
public Date convert(String s) {
//1.判断是否为空
if(s == null){
System.out.println("数据值为空");
}
//2.定义日期格式
DateFormat df = new SimpleDateFormat("yyyy-MM-dd");
//3.转换格式
try {
return df.parse(s);
}catch (Exception e){
throw new RuntimeException("数据不合理");
}
}
}
(2)范例
4.springMVC配置文件
(1)代码块
<?xml version="1.0" encoding="UTF-8"?>
<beans xmlns="http://www.springframework.org/schema/beans"
xmlns:mvc="http://www.springframework.org/schema/mvc"
xmlns:context="http://www.springframework.org/schema/context"
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.xsd
http://www.springframework.org/schema/mvc
http://www.springframework.org/schema/mvc/spring-mvc.xsd
http://www.springframework.org/schema/context
http://www.springframework.org/schema/context/spring-context.xsd">
<!-- 开启注解扫描 -->
<context:component-scan base-package="cn.controller">
<!-- 设置只扫描Controller -->
<context:include-filter type="annotation" expression="org.springframework.stereotype.Controller"/>
</context:component-scan>
<!-- 配置视图解析器 -->
<bean id="internalResourceViewResolver" class="org.springframework.web.servlet.view.InternalResourceViewResolver">
<property name="prefix" value="/WEB-INF/pages/"></property>
<property name="suffix" value=".jsp"></property>
</bean>
<!-- 设置静态资源不过滤 -->
<mvc:resources location="/css/" mapping="css/**" />
<mvc:resources location="/images/" mapping="images/**" />
<mvc:resources location="/js/" mapping="js/**" />
<!-- 配置日期转换器 -->
<bean id="conversionService" class="org.springframework.format.support.FormattingConversionServiceFactoryBean">
<property name="converters">
<set>
<bean class="cn.util.DateConverter"></bean>
</set>
</property>
</bean>
<!-- 开启springMVC的注解支持 -->
<mvc:annotation-driven conversion-service="conversionService"/>
(2)范例
5.前端页面
6.成功页面【查询成功跳转页面】
二.spring【业务层】
1.接口类
(1)代码块
import cn.domain.Cost;
import java.util.List;
public interface CostService {
/**
* 查询所有
* @return
*/
public List<Cost> findAll();
/**
* 根据指定名称查询用户
* @param kname
* @return
*/
Cost findByName(String kname);
/**
* 添加商品
* @param cost
*/
public void addCost(Cost cost);
/**
* 根据id删除指定列
* @param id
*/
void deleteById(Integer id);
/**
* 根据名称删除指定列
* @param kname
*/
void deleteByName(String kname);
}
(2)范例
2.实现类
(1)代码块
import cn.dao.CostDao;
import cn.service.CostService;
import cn.domain.Cost;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.stereotype.Service;
import java.util.List;
@Service("costService")
public class CostServiceImpl implements CostService{
@Autowired
private CostDao costDao;
@Override
public List<Cost> findAll() {
System.out.println("执行业务层");
return costDao.findAll();
}
@Override
public Cost findByName(String kname) {
return costDao.findByName(kname);
}
@Override
public void addCost(Cost cost) {
System.out.println("执行业务层");
costDao.addCost(cost);
}
@Override
public void deleteById(Integer id) {
System.out.println("执行业务层");
costDao.deleteById(id);
}
@Override
public void deleteByName(String kname) {
System.out.println("执行业务层");
costDao.deleteByName(kname);
}
}
(2)范例
3.applicationContextService配置文件
(1)代码块
<?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:context="http://www.springframework.org/schema/context"
xmlns:aop="http://www.springframework.org/schema/aop"
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/context
http://www.springframework.org/schema/context/spring-context.xsd
http://www.springframework.org/schema/aop
http://www.springframework.org/schema/aop/spring-aop.xsd
http://www.springframework.org/schema/tx
http://www.springframework.org/schema/tx/spring-tx.xsd">
<!-- 导入资源 -->
<import resource="classpath:spring/applicationContext_dao.xml"/>
<!-- 业务层配置文件开始 -->
<!-- 组件扫描 -->
<context:component-scan base-package="cn.service"/>
<!-- 配置事务管理器,底层是AOP,AOP又称面向切面,切面指的是切入点和通知的组合 -->
<bean id="transactionManager" class="org.springframework.jdbc.datasource.DataSourceTransactionManager">
<property name="dataSource" ref="dataSource"/>
</bean>
<!-- 配置事务通知 -->
<tx:advice id="advice">
<tx:attributes>
<tx:method name="save*" propagation="REQUIRED"/>
<tx:method name="update*" propagation="REQUIRED"/>
<tx:method name="delete*" propagation="REQUIRED"/>
<tx:method name="find*" read-only="true"/>
</tx:attributes>
</tx:advice>
<!-- 配置切面 -->
<aop:config>
<aop:pointcut id="pointcut" expression="execution(* *.*.*.*.*(..))"/>
<aop:advisor advice-ref="advice" pointcut-ref="pointcut"></aop:advisor>
</aop:config>
<!-- 业务层配置文件结束 -->
(2)范例
4.log4j配置文件
(1)代码块
# Set root category priority to INFO and its only appender to CONSOLE.
#log4j.rootCategory=INFO, CONSOLE debug info warn error fatal
log4j.rootCategory=debug, CONSOLE, LOGFILE
# Set the enterprise logger category to FATAL and its only appender to CONSOLE.
log4j.logger.org.apache.axis.enterprise=FATAL, CONSOLE
# CONSOLE is set to be a ConsoleAppender using a PatternLayout.
log4j.appender.CONSOLE=org.apache.log4j.ConsoleAppender
log4j.appender.CONSOLE.layout=org.apache.log4j.PatternLayout
log4j.appender.CONSOLE.layout.ConversionPattern=%d{ISO8601} %-6r [%15.15t] %-5p %30.30c %x - %m\n
# LOGFILE is set to be a File appender using a PatternLayout.
log4j.appender.LOGFILE=org.apache.log4j.FileAppender
log4j.appender.LOGFILE.File=d:\axis.log
log4j.appender.LOGFILE.Append=true
log4j.appender.LOGFILE.layout=org.apache.log4j.PatternLayout
log4j.appender.LOGFILE.layout.ConversionPattern=%d{ISO8601} %-6r [%15.15t] %-5p %30.30c %x - %m\n
(2)范例
5.pom.xml
三.dao【持久层】
1.接口类
(1)代码块
import cn.domain.Cost;
import org.apache.ibatis.annotations.Delete;
import org.apache.ibatis.annotations.Select;
import org.apache.ibatis.annotations.Update;
import org.springframework.stereotype.Repository;
import java.util.List;
@Repository("costDao")
public interface CostDao {
/**
* 查询所有
* @return
*/
public List<Cost> findAll();
/**
* 查询指定名称
* @param kname
* @return
*/
Cost findByName(String kname);
/**
* 添加商品
* @param cost
*/
public void addCost(Cost cost);
/**
* 根据id删除指定列
* @param number
*/
void deleteById(Integer number);
/**
* 根据名称删除指定列
* @param kname
*/
void deleteByName(String kname);
}
(2)范例
2.对象类
(1)代码块
import java.io.Serializable;
import java.util.Date;
public class Cost implements Serializable {
private Integer id; //主键
private String kname; //名称
private Date kdate; //日期
private Double price; //价格
private Double p_number;//数量
private Double money; //总计
@Override
public String toString() {
return "Cost{" +
"id=" + id +
", kname='" + kname + '\'' +
", kdate=" + kdate +
", price=" + price +
", p_number=" + p_number +
", money=" + money +
'}';
}
public String getKname() {
return kname;
}
public void setKname(String kname) {
this.kname = kname;
}
public Integer getId() {
return id;
}
public void setId(Integer id) {
this.id = id;
}
public Date getKdate() {
return kdate;
}
public void setKdate(Date kdate) {
this.kdate = kdate;
}
public Double getPrice() {
return price;
}
public void setPrice(Double price) {
this.price = price;
}
public Double getP_number() {
return p_number;
}
public void setP_number(Double p_number) {
this.p_number = p_number;
}
public Double getMoney() {
return money;
}
public void setMoney(Double money) {
this.money = money;
}
}
(2)范例
3.applicationContext配置文件【spring框架】
(1)代码块
<?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:context="http://www.springframework.org/schema/context"
xmlns:aop="http://www.springframework.org/schema/aop"
xmlns:tx="http://www.springframework.org/schema/tx"
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/context
http://www.springframework.org/schema/context/spring-context.xsd
http://www.springframework.org/schema/aop
http://www.springframework.org/schema/aop/spring-aop.xsd
http://www.springframework.org/schema/tx
http://www.springframework.org/schema/tx/spring-tx.xsd
http://www.springframework.org/schema/mvc
http://www.springframework.org/schema/mvc/spring-mvc.xsd">
<!-- dao层配置文件开始 -->
<!-- 数据库连接池 -->
<bean id="dataSource" class="com.alibaba.druid.pool.DruidDataSource">
<property name="driverClassName" value="com.mysql.jdbc.Driver"></property>
<property name="url" value="jdbc:mysql://localhost:3306/father_work"></property>
<property name="username" value="root"></property>
<property name="password" value="root"></property>
</bean>
<!-- 配置生产sqlSession工厂 -->
<bean id="sqlSessionFactory" class="org.mybatis.spring.SqlSessionFactoryBean">
<!-- 注入数据源 -->
<property name="dataSource" ref="dataSource"/>
</bean>
<!-- 扫描接口的包路径,生成接口包下的所有接口代理对象 -->
<bean class="org.mybatis.spring.mapper.MapperScannerConfigurer">
<property name="basePackage" value="cn.dao"/>
</bean>
<!-- dao层配置文件结束 -->
(2)范例
4.costDao配置文件【mybatis框架】
(1)代码块
<?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="cn.dao.CostDao">
<select id="findAll" resultType="cn.domain.Cost">
select * from kufang
</select>
<select id="findByName" parameterType="cn.domain.Cost" resultType="cn.domain.Cost">
select * from kufang where kname = #{kname}
</select>
<insert id="addCost" parameterType="cn.domain.Cost">
insert into kufang(kname,kdate,price,p_number,money) values(#{kname},#{kdate},#{price},#{p_number},#{money});
</insert>
<delete id="deleteById" parameterType="Integer">
delete from kufang where id = #{number}
</delete>
<delete id="deleteByName" parameterType="String">
delete from kufang where kname = #{kname}
</delete>
</mapper>