<?xml version="1.0" encoding="UTF-8"?>
<web-app xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xmlns="http://xmlns.jcp.org/xml/ns/javaee" xsi:schemaLocation="http://xmlns.jcp.org/xml/ns/javaee http://xmlns.jcp.org/xml/ns/javaee/web-app_3_1.xsd" id="WebApp_ID" version="3.1">
 <display-name>CoolWeb</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>default.html</welcome-file>
  <welcome-file>default.htm</welcome-file>
  <welcome-file>default.jsp</welcome-file>
 </welcome-file-list>


 <servlet>
   <servlet-name>CoolWeb</servlet-name>
   <servlet-class>org.springframework.web.servlet.DispatcherServlet</servlet-class>
   <init-param>
      <param-name>contextConfigLocation</param-name>
      <!-- <param-value>classpath:application-context.xml</param-value> -->
      <param-value>classpath:CoolWeb-servlet.xml</param-value> 
   </init-param><!-- classpath：只会到你的class路径中查找找文件; 
      classpath*：不仅包含class路径，还包括jar文件中(class路径)进行查找. -->
   <load-on-startup>1</load-on-startup>
 </servlet>

  <!-- 如果不配置servlet-mapping服务器就无法响应/请求 -->
 <servlet-mapping>
    <servlet-name>CoolWeb</servlet-name>
    <url-pattern>/</url-pattern>
 </servlet-mapping>

</web-app>

<?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/mvc http://www.springframework.org/schema/mvc/spring-mvc-4.3.xsd
    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-4.3.xsd">


  <!-- 开启SpringMVC注解 -->
  <context:component-scan base-package="com.vincent.lwx"/>
  <mvc:annotation-driven/>


</beans>

<?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/mvc http://www.springframework.org/schema/mvc/spring-mvc-4.3.xsd
    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-4.3.xsd">


  <context:component-scan base-package="com.vincent.lwx"/>
  <mvc:annotation-driven/>

  <!-- User实体类 -->
  <bean id="user" class="com.vincent.lwx.bean.User"/>

   <!-- 支持上传文件 --> 
  <bean id="multipartResolver" class="org.springframework.web.multipart.commons.CommonsMultipartResolver">
    <property name="defaultEncoding" value="UTF-8"/>
    <!-- max size:10M -->
    <property name="maxUploadSize" value="10485760"/>  
  </bean> 

</beans>

<?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>
  <environments default="development">
    <environment id="development">
      <transactionManager type="JDBC" />
      <!-- 配置数据库连接信息 -->
      <dataSource type="POOLED">
        <property name="driver" value="com.mysql.jdbc.Driver" />
        <!-- 注意3306后面是数据库名称 autoReconnect自动重连-->
        <property name="url" value="jdbc:mysql://localhost:3306/cool?useUnicode=true&characterEncoding=utf-8&useSSL=false&autoReconnect=true" />
        <property name="username" value="root" />
        <property name="password" value="root" />
      </dataSource>
    </environment>
  </environments>
  <mappers>
    <mapper resource="com/vincent/lwx/dao/UserMapping.xml" />
  </mappers>

</configuration>

<?xml version="1.0" encoding="UTF-8"?>
<configuration status="debug">
  <appenders>
    <Console name="Console" target="SYSTEM_OUT">
      <ThresholdFilter level="trace" onMatch="ACCEPT" onMismatch="DENY" />
      <PatternLayout
        pattern="%d{yyyy-MM-dd HH:mm:ss.SSS} %-5level %class{36} %L %M - %msg%xEx%n" />
    </Console>
    <RollingFile name="RollingFile" fileName="D:logs/schoolmallapi.log"
      filePattern="log/$${date:yyyy-MM}yimoServiceRun-%d{MM-dd-yyyy}-%i.log.gz">
      <PatternLayout pattern="%d{yyyy-MM-dd 'at' HH:mm:ss z} %-5level %class{36} %L %M - %msg%xEx%n" />
      <SizeBasedTriggeringPolicy size="15MB" />
    </RollingFile>
  </appenders>
  <loggers>
    <root level="DEBUG">
      <appender-ref ref="RollingFile" />
      <appender-ref ref="Console" />
    </root>
  </loggers>

  <!-- 下面是打印 mybatis语句的配置 --> 
  <logger name="com.ibatis" additivity="true"> 
    <level value="DEBUG" /> 
  </logger> 

  <logger name="java.sql.Connection" additivity="true"> 
    <level value="DEBUG" /> 
  </logger> 

  <logger name="java.sql.Statement" additivity="true"> 
    <level value="DEBUG" /> 
  </logger> 

  <logger name="java.sql.PreparedStatement" additivity="true"> 
    <level value="DEBUG" /> 
  </logger> 

  <logger name="java.sql.ResultSet" additivity="true"> 
    <level value="DEBUG" /> 
  </logger> 

  <root> 
    <level value="DEBUG" /> 
    <appender-ref ref="CONSOLE" /> 
<!--     <appender-ref ref="FILE" /> --> 
<!--     <appender-ref ref="framework" /> --> 
  </root> 
</configuration>

package com.vincent.lwx.bean;

import java.io.Serializable;

import lombok.Data;
import lombok.Getter;
import lombok.Setter;

/**  
* @Title: User.java 
* @Package com.vincent.lwx.bean 
* @Description: TODO(用一句话描述该文件做什么) 
* @author Vincent  
* @date 2017年3月3日 下午6:36:58 
* @version V1.0  
*/
public class User implements Serializable{

  /**
   * 序列化id
   */
  private static final long serialVersionUID = -6375697395831845246L;

  /**
   * 用户id
   */
  private @Getter String user_id;

  /**
   * 用户手机号码
   */
  private @Setter@Getter String phone;

  /**
   * 密码
   */
  private @Setter@Getter String password;

  /**
   * 用户名
   */
  private @Setter@Getter String nickname;

  /**
   * 用户头像地址
   */
  private @Setter@Getter String head;

  /**
   * 性别
   */
  private @Setter@Getter String sex;

  /**
   * 生日
   */
  private @Setter@Getter String birthday;

  /**
   * 生活状态(发表的说说)
   */
  private @Setter@Getter String live_status;


}

<?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.vincent.lwx.mapping.UserMapping">

  <!-- 根据手机号码查询用户是否存在 -->
  <select id="selectUser" parameterType="String" resultType="com.vincent.lwx.bean.User">
    select * from user where phone = #{phone}
  </select>

</mapper>

package com.vincent.lwx.db;

import java.io.IOException;
import java.io.Reader;
import java.util.Timer;
import java.util.TimerTask;

import org.apache.ibatis.io.Resources;
import org.apache.ibatis.session.SqlSession;
import org.apache.ibatis.session.SqlSessionFactory;
import org.apache.ibatis.session.SqlSessionFactoryBuilder;

import com.vincent.lwx.util.EatTimerTask;


/**
 * @Title: MyBatisUtils.java
 * @Package com.vincent.julie.config
 * @Description: TODO(��һ�仰�������ļ���ʲô)
 * @author Vincent
 * @date 2017��2��18�� ����12:05:35
 * @version V1.0
 */

public class MyBatisUtils {
  private static SqlSessionFactory sqlSessionFactory;
  private static SqlSession sqlSession;
  private static long timeInterval;//上一次运行的时间
  private static TimerTask task =null;

  static {
    String resource = "mybatis.xml";
    Reader reader = null;
    try {
      reader = Resources.getResourceAsReader(resource);
    } catch (IOException e) {
      System.out.println(e.getMessage());

    }
    sqlSessionFactory = new SqlSessionFactoryBuilder().build(reader);
  }
  /**
   * 
   * @return
   */
  public static SqlSessionFactory getSqlSessionFactory() {
    return sqlSessionFactory;
  }

  /**
   * ��ȡsqlSession����
   * @return
   */
  public static SqlSession getSqlSession(){
    if (task != null){
       task.cancel(); //将原任务从队列中移除
     }
    task = new EatTimerTask();
    timeInterval = System.currentTimeMillis();
     //间隔�?1小时
     long period = 1000 * 60 * 60;  
     //测试时间每分钟一�?
     //period = 1000 * 60;    
     Timer timer = new Timer(); 
     timer.schedule(task, timeInterval, period);

    if(sqlSessionFactory == null){
      sqlSessionFactory = MyBatisUtils.getSqlSessionFactory();
    }
    sqlSession = sqlSessionFactory.openSession();
    return sqlSession;
  }


}

package com.vincent.lwx.controller;

import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;

import org.apache.ibatis.session.SqlSession;
import org.apache.log4j.LogManager;
import org.apache.log4j.Logger;
import org.springframework.stereotype.Controller;
import org.springframework.web.bind.annotation.RequestMapping;
import org.springframework.web.bind.annotation.RequestMethod;
import org.springframework.web.bind.annotation.RequestParam;

import com.vincent.lwx.bean.ServiceStatus;
import com.vincent.lwx.bean.User;
import com.vincent.lwx.db.MyBatisUtils;
import com.vincent.lwx.util.ResponseUtils;

/**  
* @Title: UserControl.java 
* @Package com.vincent.lwx.mapping 
* @Description: TODO(��һ�仰�������ļ���ʲô) 
* @author Vincent  
* @date 2017��3��3�� ����6:28:37 
* @version V1.0  
*/
@Controller
public class UserController {

  private static final Logger logger = LogManager.getLogger(UserController.class);

  /**
   * 注册
   * @param phone
   * @param password
   * @param request
   * @param response
   */
  @RequestMapping(value = "register", method = RequestMethod.POST)
  public void registerUser(@RequestParam("phone")String phone,@RequestParam("password")String password,HttpServletRequest request,HttpServletResponse response){
    if(hasUserPhone(phone)){
      //用户已存在，无须再次注册
      ResponseUtils.renderJsonDataFail(response, ServiceStatus.RUNTIME_EXCEPTION, "该号码已被注册");
      return;
    }
  }


  /**
   * 根据手机号码查询用户是否存在
   * @param phone
   * @return
   */
  public boolean hasUserPhone(String phone){
    /**sql 语句 完整的包名类名和方法id，*/
    String sql = "com.vincent.lwx.mapping.UserMapping.selectUser";
    SqlSession session = MyBatisUtils.getSqlSession();
    /**返回一个User对象*/
    User user = session.selectOne(sql, phone);
    if(user!=null){
      //用户已存在
      return true;
    }else{
      //用户不存在
      return false;
    }
  }
}

CREATE DETABASE cool;
//创建数据库并指定字符编码集
CREATE DATABASE cool DEFAULT CHARACTER SET utf8 COLLATE utf8_general_ci;

//创建表
create table user(
user_id int(10) not null primary key auto_increment,
phone varchar(11) not null,
password varchar(16) not null,
nickname varchar(36),
head varchar(50),
sex varchar(3),
birthday varchar(10) default '1992-01-01',
live_status varchar(255)
)engine = InnoDB default charset=utf8;

//限制最小id=10000
 alter table user AUTO_INCREMENT=10000;设置已经存在的表的默认值
//限制手机号码唯一性
alter table user add unique(phone); 字段值唯一性约束

insert into user(phone,password) values(
'18696855784',
'555555');