SSM项目整合

一、maven工程

pom.xml

<?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>com.zengqingfa</groupId>  
  <artifactId>ssm</artifactId>  
  <version>1.0-SNAPSHOT</version>
  <packaging>war</packaging>

  <dependencies>
    <!--spring核心包-->
    <dependency>
      <groupId>org.springframework</groupId>
      <artifactId>spring-context</artifactId>
      <version>5.0.2.RELEASE</version>
    </dependency>
    <!--spring aop支持包-->
    <dependency>
      <groupId>org.aspectj</groupId>
      <artifactId>aspectjweaver</artifactId>
      <version>1.8.7</version>
    </dependency>
    <!--spring 事务包-->
    <dependency>
      <groupId>org.springframework</groupId>
      <artifactId>spring-tx</artifactId>
      <version>5.0.2.RELEASE</version>
    </dependency>
    <dependency>
      <groupId>org.springframework</groupId>
      <artifactId>spring-jdbc</artifactId>
      <version>5.0.2.RELEASE</version>
    </dependency>
    <!--springmvc包-->
    <dependency>
      <groupId>org.springframework</groupId>
      <artifactId>spring-webmvc</artifactId>
      <version>5.0.2.RELEASE</version>
    </dependency>
    <!--mybatis包-->
    <dependency>
      <groupId>org.mybatis</groupId>
      <artifactId>mybatis</artifactId>
      <version>3.4.5</version>
    </dependency>
    <!--spring整合mybatis支持包-->
    <dependency>
      <groupId>org.mybatis</groupId>
      <artifactId>mybatis-spring</artifactId>
      <version>1.3.1</version>
    </dependency>
    <!--数据库驱动包、连接池-->
    <dependency>
      <groupId>mysql</groupId>
      <artifactId>mysql-connector-java</artifactId>
      <version>5.1.30</version>
    </dependency>
    <dependency>
      <groupId>com.alibaba</groupId>
      <artifactId>druid</artifactId>
      <version>1.1.10</version>
    </dependency>
    <!--servlet支持包-->
    <dependency>
      <groupId>javax.servlet</groupId>
      <artifactId>servlet-api</artifactId>
      <version>2.5</version>
    </dependency>
    <dependency>
      <groupId>javax.servlet</groupId>
      <artifactId>jsp-api</artifactId>
      <version>2.0</version>
    </dependency>
    <!--junit测试包、spring对junit支持包-->
    <dependency>
      <groupId>junit</groupId>
      <artifactId>junit</artifactId>
      <version>4.12</version>
    </dependency>
    <dependency>
      <groupId>org.springframework</groupId>
      <artifactId>spring-test</artifactId>
      <version>5.0.2.RELEASE</version>
    </dependency>
    <!--添加jstl依赖-->
    <dependency>
      <groupId>jstl</groupId>
      <artifactId>jstl</artifactId>
      <version>1.2</version>
    </dependency>
    <!--json支持-->
    <dependency>
      <groupId>com.fasterxml.jackson.core</groupId>
      <artifactId>jackson-core</artifactId>
      <version>2.9.0</version>
    </dependency>

    <dependency>
      <groupId>com.fasterxml.jackson.core</groupId>
      <artifactId>jackson-databind</artifactId>
      <version>2.9.0</version>
    </dependency>

    <dependency>
      <groupId>com.fasterxml.jackson.core</groupId>
      <artifactId>jackson-annotations</artifactId>
      <version>2.9.0</version>
    </dependency>

  </dependencies>

  <build>
    <plugins>
      <!-- tomcat 插件 -->
      <plugin>
        <groupId>org.apache.tomcat.maven</groupId>
        <artifactId>tomcat7-maven-plugin</artifactId>
        <version>2.2</version>
        <configuration>
          <path>/</path>
          <port>9005</port>
        </configuration>
      </plugin>

      <plugin>
        <groupId>org.apache.maven.plugins</groupId>
        <artifactId>maven-compiler-plugin</artifactId>
        <configuration>
          <source>1.8</source>
          <target>1.8</target>
        </configuration>
      </plugin>
    </plugins>

  </build>

</project>

二、domain

1、Account.java

package com.zengqingfa.entity;

/*
 *  @ author  zengqingfa
 *  @ created in    2019/2/17  16:22
 *
 */

/**
 * PO(Persistence Object)持久化类
 * 7个规范
 * 1. 公有类
 * 2. 公有无参构造
 * 3. 私有属性
 * 4. 公有的getter与setter
 * 5. 实现java.io.Serializable接口
 * 6. 不能用final修饰
 * 7. 如果是基础类型，要使用它的包装类
 */

import java.io.Serializable;

public class Account implements Serializable {
    private Integer accountid;
    private Integer uid;
    private Double money;

    public Integer getAccountId() {
        return accountid;
    }

    public void setAccountId(Integer accountId) {
        this.accountid = accountid;
    }

    public Integer getUid() {
        return uid;
    }

    public void setUid(Integer uid) {
        this.uid = uid;
    }

    public Double getMoney() {
        return money;
    }

    public void setMoney(Double money) {
        this.money = money;
    }
}

三、controller

1、AccountController.java

package com.zengqingfa.controller;

import com.zengqingfa.entity.Account;
import com.zengqingfa.service.IAccountService;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.stereotype.Controller;
import org.springframework.web.bind.annotation.RequestMapping;
import org.springframework.web.bind.annotation.ResponseBody;
import org.springframework.web.servlet.ModelAndView;

import java.util.Date;
import java.util.List;

@Controller
public class AccountController {

    // 注入service
    @Autowired
    private IAccountService accountService;

    // 查询全部
    @RequestMapping("/findAll")
    public ModelAndView findAll() {
        //1.调用service查询
        List<Account> list = accountService.findAll();
        //2.返回结果
        ModelAndView mv = new ModelAndView();
        mv.setViewName("list");
        mv.addObject("list", list);
        mv.addObject("date", new Date());
        return mv;
    }

    @RequestMapping("/findAll2")
    @ResponseBody
    public List<Account> findAll2() {
        //1.调用service查询
        return accountService.findAll();
    }
}

四、service

1、service接口

package com.zengqingfa.service;



import com.zengqingfa.entity.Account;

import java.util.List;

public interface IAccountService {
    /**
     * 查询全部
     */
    List<Account> findAll();
}

2、service实现

package com.zengqingfa.service.impl;

import com.zengqingfa.dao.IAccountDao;
import com.zengqingfa.entity.Account;
import com.zengqingfa.service.IAccountService;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.stereotype.Service;

import java.util.List;

// 创建service对象
@Service
public class AccountServiceImpl implements IAccountService {

    // 注入dao
    @Autowired
    private IAccountDao accountDao;

    @Override
    public List<Account> findAll() {
        return accountDao.findAll();
    }
}

五、dao

1、dao接口

package com.zengqingfa.dao;


import com.zengqingfa.entity.Account;
import org.apache.ibatis.annotations.Select;

import java.util.List;


public interface IAccountDao {
    /**
     * 查询全部
     */
    @Select("select * from account")
    List<Account> findAll();
}

六、配置文件

1、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_2_5.xsd"
    version="2.5">

    <!--加载Spring的容器的核心配置文件-->
    <listener>
        <listener-class>org.springframework.web.context.ContextLoaderListener</listener-class>
    </listener>
    <!--配置要加载的容器的配置文件-->
    <context-param>
        <param-name>contextConfigLocation</param-name>
        <param-value>classpath:applicationContext.xml</param-value>
    </context-param>

    <!--SpringMVC前端控制器-->
    <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>
        <load-on-startup>1</load-on-startup>
    </servlet>
    <servlet-mapping>
        <servlet-name>dispatcherServlet</servlet-name>
        <url-pattern>/</url-pattern>
    </servlet-mapping>

</web-app>

2、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: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/context http://www.springframework.org/schema/context/spring-context.xsd http://www.springframework.org/schema/mvc http://www.springframework.org/schema/mvc/spring-mvc.xsd">

    <!--1.注解扫描-->
    <context:component-scan base-package="com.zengqingfa.controller" />
    <!--2.视图解析器-->
    <bean class="org.springframework.web.servlet.view.InternalResourceViewResolver">
        <property name="prefix" value="/pages/"></property>
        <property name="suffix" value=".jsp"></property>
    </bean>
    <!--3.注解驱动-->
    <mvc:annotation-driven />
</beans>

3、applicationContext.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:comtext="http://www.springframework.org/schema/context"
       xmlns:context="http://www.springframework.org/schema/context" xmlns:tx="http://www.springframework.org/schema/tx"
       xmlns:aop="http://www.springframework.org/schema/aop"
       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/tx http://www.springframework.org/schema/tx/spring-tx.xsd http://www.springframework.org/schema/aop http://www.springframework.org/schema/aop/spring-aop.xsd">

    <!--1.开启注解扫描,只扫描service-->
    <comtext:component-scan base-package="com.zengqingfa.service" />

    <!--2. 加载配置文件-->
    <context:property-placeholder location="classpath:jdbc.properties"/>

    <!--3. 创建连接池-->
    <bean id="dataSource" class="com.alibaba.druid.pool.DruidDataSource">
        <property name="driverClassName" value="${jdbc.driver}"></property>
        <property name="url" value="${jdbc.url}"></property>
        <property name="username" value="${jdbc.username}"></property>
        <property name="password" value="${jdbc.password}"></property>
    </bean>

    <!--4.Spring整合Mybatis，把SqlSessionFactory对象的创建交给Spring管理-->
    <bean class="org.mybatis.spring.SqlSessionFactoryBean">
        <property name="dataSource" ref="dataSource"></property>
    </bean>

    <!--5. 创建包扫描器，扫描dao接口。自动对dao接口生成代理对象-->
    <bean class="org.mybatis.spring.mapper.MapperScannerConfigurer">
        <property name="basePackage" value="com.zengqingfa.dao"></property>
    </bean>

    <!--6. Spring声明式事务管理-->
    <!--6.1 事务管理器-->
    <bean id="txManager" class="org.springframework.jdbc.datasource.DataSourceTransactionManager">
        <property name="dataSource" ref="dataSource"></property>
    </bean>
    <!--6.2 事务通知规则(切入点表达式拦截到方法后如何应用事务)-->
    <tx:advice id="txAdvice" transaction-manager="txManager">
        <tx:attributes>
            <tx:method name="find*" propagation="SUPPORTS" read-only="true" />
            <tx:method name="*" propagation="REQUIRED" read-only="false"/>
        </tx:attributes>
    </tx:advice>
    <!--6.3 Aop配置-->
    <aop:config>
        <!--6.3.1 配置切入点表达式-->
        <aop:pointcut id="pt" expression="execution(* com..*ServiceImpl.*(..))"></aop:pointcut>
        <!--6.3.2 建立切入点表达式与通知规则的关系-->
        <aop:advisor advice-ref="txAdvice" pointcut-ref="pt"></aop:advisor>
    </aop:config>
</beans>

4、jdbc.properties

jdbc.driver=com.mysql.jdbc.Driver
jdbc.url=jdbc:mysql://localhost:3306/vue?characterEncoding=utf8
jdbc.username=root
jdbc.password=root
jdbc.initialSize=3
jdbc.maxActive=10

5、log4j.properties

# 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

七、页面

list.jsp

<%@ page import="java.util.Date" %>
<%@ page contentType="text/html;charset=UTF-8" language="java" %>
<%--1.核心标签库--%>
<%@taglib prefix="c" uri="http://java.sun.com/jsp/jstl/core" %>
<%--2.格式化与国际化标签库--%>
<%@taglib prefix="fmt" uri="http://java.sun.com/jsp/jstl/fmt" %>
<%--3.函数库--%>
<%@taglib prefix="fn" uri="http://java.sun.com/jsp/jstl/functions" %>

<html>
<head>
    <title>list</title>
</head>
<body>
    <h3>foreach遍历标签:遍历数字</h3>
    <c:forEach var="num" begin="1" end="10" step="2">
        ${num},
    </c:forEach>

    <h3>foreach遍历request域数据</h3>
    <table border="1" cellspacing="0" cellpadding="3">
        <tr>
            <td>序号</td>
            <td>编号</td>
            <td>用户id</td>
            <td>金额</td>
        </tr>
        <c:forEach var="account" items="${list}" varStatus="vs">
            <tr>
                <td>${vs.count}</td>
                <td>${account.accountId}</td>
                <td>${account.uid}</td>
                <td>${account.money}</td>
            </tr>
        </c:forEach>
    </table>

    <h3>格式化金额、日期</h3>
    <%--pattern="0.00 保留2位小数，不够两位自动补0--%>
    <fmt:formatNumber value="1" pattern="0.00"></fmt:formatNumber> ,
    <fmt:formatNumber value="1.985" pattern="0.00"></fmt:formatNumber> ,

    <%--pattern="#.## 保留2位小数，不够两位不会自动补0--%>
    <fmt:formatNumber value="1" pattern="#.##"></fmt:formatNumber> ,
    <fmt:formatNumber value="1.985" pattern="#.##"></fmt:formatNumber> ,

    <%--格式化日期：value 就是日期值（java.util.Date）--%>
    <fmt:formatDate value="${date}" pattern="yyyy/MM/dd"></fmt:formatDate>

    <h3>函数库（方便页面操作字符串函数）</h3>
    ${fn:contains("itcast", "cast")}
</body>
</html>

八、展示

1、http://localhost:8080/findAll.do

2、http://localhost:8080/findAll2.do

[{"uid":45,"money":1000.0,"accountId":1},{"uid":46,"money":1000.0,"accountId":2},{"uid":46,"money":2000.0,"accountId":3}]