ssm记录

记录一下ssm简单框架的搭建。

package com.cxb.dao;

import java.util.List;

import com.cxb.entity.Book;
import org.apache.ibatis.annotations.Param;


public interface BookDao {

   /**
    * 通过ID查询单本图书
    * 
    * @param id
    * @return
    */
   Book queryById(long id);

   /**
    * 查询所有图书
    * 
    * @param offset 查询起始位置
    * @param limit 查询条数
    * @return
    */
   List<Book> queryAll(@Param("offset") int offset, @Param("limit") int limit);

   /**
    * 减少馆藏数量
    * 
    * @param bookId
    * @return 如果影响行数等于>1，表示更新的记录行数
    */
   int reduceNumber(long bookId);

}

package com.cxb.entity;

/**
 * 图书实体
 */
public class Book {

   private long bookId;// 图书ID

   private String name;// 图书名称

   private int number;// 馆藏数量

   public Book() {
   }

   public Book(long bookId, String name, int number) {
      this.bookId = bookId;
      this.name = name;
      this.number = number;
   }

   public long getBookId() {
      return bookId;
   }

   public void setBookId(long bookId) {
      this.bookId = bookId;
   }

   public String getName() {
      return name;
   }

   public void setName(String name) {
      this.name = name;
   }

   public int getNumber() {
      return number;
   }

   public void setNumber(int number) {
      this.number = number;
   }

   @Override
   public String toString() {
      return "Book [bookId=" + bookId + ", name=" + name + ", number=" + number + "]";
   }


}

package com.cxb.service;

import com.cxb.entity.Book;

import java.util.List;

/**
 * 业务接口：站在"使用者"角度设计接口 三个方面：方法定义粒度，参数，返回类型（return 类型/异常）
 */
public interface BookService {

   /**
    * 查询一本图书
    * 
    * @param bookId
    * @return
    */
   Book getById(long bookId);

   /**
    * 查询所有图书
    * 
    * @return
    */
   List<Book> getList();

}

package com.cxb.service.impl;

import java.util.List;

import com.cxb.dao.BookDao;
import com.cxb.entity.Book;
import com.cxb.service.BookService;
import org.slf4j.Logger;
import org.slf4j.LoggerFactory;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.stereotype.Service;


@Service
public class BookServiceImpl implements BookService {

   private Logger logger = LoggerFactory.getLogger(this.getClass());

   // 注入Service依赖
   @Autowired
   private BookDao bookDao;

   @Override
   public Book getById(long bookId) {
      return bookDao.queryById(bookId);
   }

   @Override
   public List<Book> getList() {
      return bookDao.queryAll(0, 1000);
   }

}

package com.cxb.web;

import java.util.List;

import com.cxb.entity.Book;
import com.cxb.service.BookService;

import org.apache.log4j.Logger;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.stereotype.Controller;
import org.springframework.ui.Model;
import org.springframework.web.bind.annotation.PathVariable;
import org.springframework.web.bind.annotation.RequestMapping;
import org.springframework.web.bind.annotation.RequestMethod;

@Controller
@RequestMapping("/book") // url:/模块/资源/{id}/细分 /seckill/list
public class BookController {

   private final Logger log = Logger.getLogger(BookController.class);

   @Autowired
   private BookService bookService;

   //http://localhost:8080/book/list
   @RequestMapping(value = "/list", method = RequestMethod.GET)
   //@ResponseBody   加上这句话只是返回的list这个字符串哦
   private String list(Model model) {
      List<Book> list = bookService.getList();
      log.info("访问book/list***>"+list);
      model.addAttribute("list", list);
      // list.jsp + model = ModelAndView
      return "list";// WEB-INF/jsp/"list".jsp
   }

   //http://localhost:8080/book/detail/1000    这里会自动将1000 赋值给bookId
   @RequestMapping(value = "/detail/{bookId}", method = RequestMethod.GET)
   private String detail(@PathVariable("bookId") Long bookId, Model model) {
      if (bookId == null) {
         return "redirect:/book/list";
      }
      Book book = bookService.getById(bookId);
      log.error("访问book/detail/1000***>"+book);
      if (book == null) {
         return "forward:/book/list";
      }
      model.addAttribute("book", book);
      return "detail";
   }
}

BookDao.xml

<?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="com.cxb.dao.BookDao">
   <!-- 目的：为dao接口方法提供sql语句配置 -->
   <select id="queryById" resultType="Book" parameterType="long">
      <!-- 具体的sql -->
      SELECT
         book_id,
         name,
         number
      FROM
         book
      WHERE
         book_id = #{bookId}
   </select>
   
   <select id="queryAll" resultType="Book">
      SELECT
         book_id,
         name,
         number
      FROM
         book
      ORDER BY
         book_id
      LIMIT #{offset}, #{limit}
   </select>
   
   <update id="reduceNumber">
      UPDATE book
      SET number = number - 1
      WHERE
         book_id = #{bookId}
      AND number > 0
   </update>
</mapper>

spring-dao.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"
   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">
   <!-- 配置整合mybatis过程 -->
   <!-- 1.配置数据库相关参数properties的属性：${url} -->
   <context:property-placeholder location="classpath:jdbc.properties" />

   <!-- 2.数据库连接池 -->
   <!-- 阿里 druid 数据库连接池 -->
   <bean id = "dataSource" class = "com.alibaba.druid.pool.DruidDataSource" destroy-method = "close" >
      <!-- 数据库基本信息配置 -->
      <property name = "driverClassName" value = "${jdbc.driver}" />
      <property name = "url" value = "${jdbc.url}" />
      <property name = "username" value = "${jdbc.username}" />
      <property name = "password" value = "${jdbc.password}" />
      <property name = "filters" value = "${filters}" />
      <!-- 最大并发连接数 -->
      <property name = "maxActive" value = "${maxActive}" />
      <!-- 初始化连接数量 -->
      <property name = "initialSize" value = "${initialSize}" />
      <!-- 配置获取连接等待超时的时间 -->
      <property name = "maxWait" value = "${maxWait}" />
      <!-- 最小空闲连接数 -->
      <property name = "minIdle" value = "${minIdle}" />
      <!-- 配置间隔多久才进行一次检测，检测需要关闭的空闲连接，单位是毫秒 -->
      <property name = "timeBetweenEvictionRunsMillis" value ="${timeBetweenEvictionRunsMillis}" />
      <!-- 配置一个连接在池中最小生存的时间，单位是毫秒 -->
      <property name = "minEvictableIdleTimeMillis" value ="${minEvictableIdleTimeMillis}" />
      <property name = "validationQuery" value = "${validationQuery}" />
      <property name = "maxOpenPreparedStatements" value ="${maxOpenPreparedStatements}" />
      <!-- 1800 秒，也就是 30 分钟 -->
      <property name = "removeAbandonedTimeout" value ="${removeAbandonedTimeout}" />
   </bean >

   <!-- 3.配置SqlSessionFactory对象 -->
   <bean id="sqlSessionFactory" class="org.mybatis.spring.SqlSessionFactoryBean">
      <!-- 注入数据库连接池 -->
      <property name="dataSource" ref="dataSource" />
      <!-- 配置MyBaties全局配置文件:mybatis-config.xml -->
      <property name="configLocation" value="classpath:mybatis-config.xml" />
      <!-- 扫描entity包 使用别名 -->
      <property name="typeAliasesPackage" value="com.cxb.entity" />
      <!-- 扫描sql配置文件:mapper需要的xml文件 -->
      <property name="mapperLocations" value="classpath:mapper/*.xml" />
   </bean>

   <!-- 4.配置扫描Dao接口包，动态实现Dao接口，注入到spring容器中 -->
   <bean class="org.mybatis.spring.mapper.MapperScannerConfigurer">
      <!-- 注入sqlSessionFactory -->
      <property name="sqlSessionFactoryBeanName" value="sqlSessionFactory" />
      <!-- 给出需要扫描Dao接口包 -->
      <property name="basePackage" value="com.cxb.dao" />
   </bean>
</beans>

spring-service.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: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/tx
   http://www.springframework.org/schema/tx/spring-tx.xsd">
   <!-- 扫描service包下所有使用注解的类型 -->
   <context:component-scan base-package="com.cxb.service" />

   <import resource="spring-dao.xml"/>
   <!-- 配置事务管理器 -->
   <bean id="transactionManager"
      class="org.springframework.jdbc.datasource.DataSourceTransactionManager">
      <!-- 注入数据库连接池 -->
      <property name="dataSource" ref="dataSource" />
   </bean>

   <!-- 配置基于注解的声明式事务 -->
   <tx:annotation-driven transaction-manager="transactionManager" />
</beans>

spring-web.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-3.0.xsd">
   <!-- 配置SpringMVC -->
   <!-- 1.开启SpringMVC注解模式 -->
   <!-- 简化配置： 
      (1)自动注册DefaultAnootationHandlerMapping,AnotationMethodHandlerAdapter 
      (2)提供一些列：数据绑定，数字和日期的format @NumberFormat, @DateTimeFormat, xml,json默认读写支持 
   -->
   <mvc:annotation-driven />
   
   <!-- 2.静态资源默认servlet配置
      (1)加入对静态资源的处理：js,gif,png
      (2)允许使用"/"做整体映射
    -->
    <mvc:default-servlet-handler/>
    
    <!-- 3.配置jsp 显示ViewResolver -->
    <bean class="org.springframework.web.servlet.view.InternalResourceViewResolver">
      <property name="viewClass" value="org.springframework.web.servlet.view.JstlView" />
      <property name="prefix" value="/WEB-INF/jsp/" />
      <property name="suffix" value=".jsp" />
    </bean>
    
    <!-- 4.扫描web相关的bean -->
    <context:component-scan base-package="com.cxb.web" />
</beans>

jdbc.properties

jdbc.driver=com.mysql.jdbc.Driver
jdbc.url=jdbc:mysql://localhost:3306/ssm?useUnicode=true&characterEncoding=utf8
jdbc.username=root
jdbc.password=123456
filters: stat  
maxActive: 20  
initialSize: 1  
maxWait: 60000  
minIdle: 10  
timeBetweenEvictionRunsMillis: 60000  
minEvictableIdleTimeMillis: 300000  
validationQuery: SELECT 'x'  
maxOpenPreparedStatements: 20  
removeAbandonedTimeout: 1800  

mybatis-config.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>
   <!-- 配置全局属性 -->
   <settings>
      <!-- 使用jdbc的getGeneratedKeys获取数据库自增主键值 -->
      <setting name="useGeneratedKeys" value="true" />

      <!-- 使用列别名替换列名 默认:true -->
      <setting name="useColumnLabel" value="true" />

      <!-- 开启驼峰命名转换:Table{create_time} -> Entity{createTime} -->
      <setting name="mapUnderscoreToCamelCase" value="true" />
   </settings>
</configuration>

web.xml

<!DOCTYPE web-app PUBLIC
 "-//Sun Microsystems, Inc.//DTD Web Application 2.3//EN"
 "http://java.sun.com/dtd/web-app_2_3.dtd" >

<web-app>
  <display-name>Archetype Created Web Application</display-name>
  <servlet>
    <servlet-name>mvc-dispatcher</servlet-name>
    <servlet-class>org.springframework.web.servlet.DispatcherServlet</servlet-class>
    <!-- 配置springMVC需要加载的配置文件
        spring-dao.xml,spring-service.xml,spring-web.xml
        Mybatis - > spring -> springmvc
     -->
    <init-param>
      <param-name>contextConfigLocation</param-name>
      <param-value>classpath:spring/spring-*.xml</param-value>
    </init-param>
  </servlet>
  <servlet-mapping>
    <servlet-name>mvc-dispatcher</servlet-name>
    <!-- 默认匹配所有的请求 -->
    <url-pattern>/</url-pattern>
  </servlet-mapping>

</web-app>

list.jsp

<%@ page contentType="text/html; charset=UTF-8"%>
<%@ page isELIgnored="false" %>
<%@ taglib uri="http://java.sun.com/jsp/jstl/core" prefix="c" %>
<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN">
<html>
<head>
    <title>Jsp使用c:forEach遍历List集合</title>
</head>
<body>
<p>遍历List集合的全部元素：</p>
<c:forEach items="${list}" var="book" varStatus="vs">
    <tr>
        <td>
            <s:property value="#vs.index+1"/>
        </td><br>
        <td align = "center">${book.bookId}</td><br>
        <td align = "center">${book.name}</td><br>
        <td align = "center">${book.number}</td><br>
    </tr>
</c:forEach>
</body>
</html>

detail.jsp

<%@ page contentType="text/html; charset=UTF-8"%>
<%--这句话要加 不然不会显示真正的数据库值  只显示${book.bookId} 字符串--%>
<%@ page isELIgnored="false" %>
<%@ taglib uri="http://java.sun.com/jsp/jstl/core" prefix="c" %>
<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN">
<html>
<head>
    <title>Book详情页面</title>
</head>
<body>
    <p>Book详情页面</p>
    <p>${book.bookId}</p><br>
    <p>${book.name}</p><br>
    <p>${book.number}</p><br>
</body>
</html>

数据库sql：

-- 创建图书表
CREATE TABLE `book` (
`book_id` bigint(20) NOT NULL AUTO_INCREMENT COMMENT '图书ID',
`name` varchar(100) NOT NULL COMMENT '图书名称',
`number` int(11) NOT NULL COMMENT '馆藏数量',
PRIMARY KEY (`book_id`)
) ENGINE=InnoDB AUTO_INCREMENT=1000 DEFAULT CHARSET=utf8 COMMENT='图书表';

-- 初始化图书数据
INSERT INTO `book` (`book_id`, `name`, `number`)
VALUES
(1000, 'Java程序设计', 20),
(1001, '数据结构', 60),
(1002, '设计模式', 30),
(1003, '编译原理', 55);

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.cxb</groupId>
  <artifactId>ssm</artifactId>
  <version>1.0-SNAPSHOT</version>
  <packaging>war</packaging>

  <name>ssm Maven Webapp</name>
  <!-- FIXME change it to the project's website -->
  <url>http://www.example.com</url>

  <properties>
    <project.build.sourceEncoding>UTF-8</project.build.sourceEncoding>
    <maven.compiler.source>1.7</maven.compiler.source>
    <maven.compiler.target>1.7</maven.compiler.target>
  </properties>

  <dependencies>
    <dependency>
      <groupId>junit</groupId>
      <artifactId>junit</artifactId>
      <version>4.11</version>
      <scope>test</scope>
    </dependency>
    <!-- 单元测试 -->
    <dependency>
      <groupId>junit</groupId>
      <artifactId>junit</artifactId>
      <version>4.11</version>
    </dependency>

    <!-- 1.日志 -->
    <!--log4j 日志框架配置  -->
    <dependency>
      <groupId>log4j</groupId>
      <artifactId>log4j</artifactId>
      <version>1.2.17</version>
    </dependency>

    <!-- 2.数据库 -->
    <dependency>
      <groupId>mysql</groupId>
      <artifactId>mysql-connector-java</artifactId>
      <version>5.1.37</version>
      <scope>runtime</scope>
    </dependency>
    <!-- https://mvnrepository.com/artifact/com.alibaba/druid -->
    <dependency>
      <groupId>com.alibaba</groupId>
      <artifactId>druid</artifactId>
      <version>1.1.6</version>
    </dependency>


    <!-- DAO: MyBatis -->
    <dependency>
      <groupId>org.mybatis</groupId>
      <artifactId>mybatis</artifactId>
      <version>3.3.0</version>
    </dependency>
    <dependency>
      <groupId>org.mybatis</groupId>
      <artifactId>mybatis-spring</artifactId>
      <version>1.2.3</version>
    </dependency>

    <!-- 3.Servlet web -->
    <dependency>
      <groupId>taglibs</groupId>
      <artifactId>standard</artifactId>
      <version>1.1.2</version>
    </dependency>
    <dependency>
      <groupId>jstl</groupId>
      <artifactId>jstl</artifactId>
      <version>1.2</version>
    </dependency>
    <dependency>
      <groupId>com.fasterxml.jackson.core</groupId>
      <artifactId>jackson-databind</artifactId>
      <version>2.5.4</version>
    </dependency>
    <dependency>
      <groupId>javax.servlet</groupId>
      <artifactId>javax.servlet-api</artifactId>
      <version>3.1.0</version>
    </dependency>

    <!-- 4.Spring -->
    <!-- 1)Spring核心 -->
    <dependency>
      <groupId>org.springframework</groupId>
      <artifactId>spring-core</artifactId>
      <version>4.1.7.RELEASE</version>
    </dependency>
    <dependency>
      <groupId>org.springframework</groupId>
      <artifactId>spring-beans</artifactId>
      <version>4.1.7.RELEASE</version>
    </dependency>
    <dependency>
      <groupId>org.springframework</groupId>
      <artifactId>spring-context</artifactId>
      <version>4.1.7.RELEASE</version>
    </dependency>
    <!-- 2)Spring DAO层 -->
    <dependency>
      <groupId>org.springframework</groupId>
      <artifactId>spring-jdbc</artifactId>
      <version>4.1.7.RELEASE</version>
    </dependency>
    <dependency>
      <groupId>org.springframework</groupId>
      <artifactId>spring-tx</artifactId>
      <version>4.1.7.RELEASE</version>
    </dependency>
    <!-- 3)Spring web -->
    <dependency>
      <groupId>org.springframework</groupId>
      <artifactId>spring-web</artifactId>
      <version>4.1.7.RELEASE</version>
    </dependency>
    <dependency>
      <groupId>org.springframework</groupId>
      <artifactId>spring-webmvc</artifactId>
      <version>4.1.7.RELEASE</version>
    </dependency>
    <!-- 4)Spring test -->
    <dependency>
      <groupId>org.springframework</groupId>
      <artifactId>spring-test</artifactId>
      <version>4.1.7.RELEASE</version>
    </dependency>

    <!-- redis客户端:Jedis -->
    <dependency>
      <groupId>redis.clients</groupId>
      <artifactId>jedis</artifactId>
      <version>2.7.3</version>
    </dependency>
    <dependency>
      <groupId>com.dyuproject.protostuff</groupId>
      <artifactId>protostuff-core</artifactId>
      <version>1.0.8</version>
    </dependency>
    <dependency>
      <groupId>com.dyuproject.protostuff</groupId>
      <artifactId>protostuff-runtime</artifactId>
      <version>1.0.8</version>
    </dependency>

    <!-- Map工具类 -->
    <dependency>
      <groupId>commons-collections</groupId>
      <artifactId>commons-collections</artifactId>
      <version>3.2</version>
    </dependency>

  </dependencies>

  <build>
    <finalName>ssm</finalName>
    <pluginManagement><!-- lock down plugins versions to avoid using Maven defaults (may be moved to parent pom) -->
      <plugins>
        <plugin>
          <artifactId>maven-clean-plugin</artifactId>
          <version>3.0.0</version>
        </plugin>
        <!-- see http://maven.apache.org/ref/current/maven-core/default-bindings.html#Plugin_bindings_for_war_packaging -->
        <plugin>
          <artifactId>maven-resources-plugin</artifactId>
          <version>3.0.2</version>
        </plugin>
        <plugin>
          <artifactId>maven-compiler-plugin</artifactId>
          <version>3.7.0</version>
        </plugin>
        <plugin>
          <artifactId>maven-surefire-plugin</artifactId>
          <version>2.20.1</version>
        </plugin>
        <plugin>
          <artifactId>maven-war-plugin</artifactId>
          <version>3.2.0</version>
        </plugin>
        <plugin>
          <artifactId>maven-install-plugin</artifactId>
          <version>2.5.2</version>
        </plugin>
        <plugin>
          <artifactId>maven-deploy-plugin</artifactId>
          <version>2.8.2</version>
        </plugin>
      </plugins>
    </pluginManagement>
  </build>
</project>

log4j.properties

 ### \u8BBE\u7F6E###
log4j.rootLogger = info,debug,stdout,D,E

### \u8F93\u51FA\u4FE1\u606F\u5230\u63A7\u5236\u62AC ###
log4j.appender.stdout = org.apache.log4j.ConsoleAppender
log4j.appender.stdout.Target = System.out
log4j.appender.stdout.layout = org.apache.log4j.PatternLayout
log4j.appender.stdout.layout.ConversionPattern = [%-5p] %d{yyyy-MM-dd HH:mm:ss,SSS} method:%l%n%m%n

### \u8F93\u51FADEBUG \u7EA7\u522B\u4EE5\u4E0A\u7684\u65E5\u5FD7\u5230=E://logs/error.log ###
log4j.appender.D = org.apache.log4j.DailyRollingFileAppender
log4j.appender.D.File = D://SSM/logs/info_log.log
log4j.appender.D.Append = true
log4j.appender.D.Threshold = INFO 
log4j.appender.D.layout = org.apache.log4j.PatternLayout
log4j.appender.D.layout.ConversionPattern = %-d{yyyy-MM-dd HH:mm:ss}  [ %t:%r ] - [ %p ]  %m%n

### \u8F93\u51FAERROR \u7EA7\u522B\u4EE5\u4E0A\u7684\u65E5\u5FD7\u5230=E://logs/error.log ###
log4j.appender.E = org.apache.log4j.DailyRollingFileAppender
log4j.appender.E.File =D://SSM/logs/error_log.log
log4j.appender.E.Append = true
log4j.appender.E.Threshold = ERROR 
log4j.appender.E.layout = org.apache.log4j.PatternLayout
log4j.appender.E.layout.ConversionPattern = %-d{yyyy-MM-dd HH:mm:ss}  [ %t:%r ] - [ %p ]  %m%n

//根据不同的日志级别在日志文件中查看

最后启动，并访问：http://localhost:8080/book/list  （list页面）                  

                              http://localhost:8080/book/detail/1000  （detail页面）