SpringMVC+MyBatis （druid、logback）

時間 2019-11-11

標籤 springmvc+mybatis springmvc mybatis druid logback 欄目 Spring 简体版

原文原文鏈接

數據庫鏈接池是阿里巴巴的druid、日誌框架式logbackcss

1.整合SpringMVC
springMybatis-servlet.xml：java

<?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">  
      
        <!-- 啓用spring mvc 註解-->  
    <mvc:annotation-driven>   
    </mvc:annotation-driven>  
      
    <!-- 自動掃描的包名 ，使Spring支持自動檢測組件，如註解的Controller-->  
    <context:component-scan base-package="com.alibaba.controller" />  
    <context:component-scan base-package="com.alibaba.service"/>  
      
      
    <!-- 視圖解析器:定義跳轉的文件的先後綴 -->    
    <bean id="viewResolver" class="org.springframework.web.servlet.view.InternalResourceViewResolver">    
        <property name="prefix" value="/WEB-INF/jsp/" />    
        <property name="suffix" value=".jsp" />  <!--可爲空,方便實現自已的依據擴展名來選擇視圖解釋類的邏輯  -->  
    </bean>    
  
    <!--配置攔截器, 多個攔截器,順序執行 -->   
    <mvc:interceptors>    
        <mvc:interceptor>    
            <!-- 匹配的是url路徑  -->  
            <mvc:mapping path="/" />  
            <mvc:mapping path="/user/**" />  
            <mvc:mapping path="/test/**" />  
              
            <bean class="com.alibaba.interceptor.CommonInterceptor"></bean>    
        </mvc:interceptor>  
        <!-- 當設置多個攔截器時，先按順序調用preHandle方法，而後逆序調用每一個攔截器的postHandle和afterCompletion方法 -->  
    </mvc:interceptors>  
        
</beans>

2.整合Mybatismysql

spring-dao.xml:web

<?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:mybatis="http://mybatis.org/schema/mybatis-spring"  
       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://mybatis.org/schema/mybatis-spring http://mybatis.org/schema/mybatis-spring.xsd  
       http://www.springframework.org/schema/context http://www.springframework.org/schema/context/spring-context.xsd">  
      
    <!-- 該包下的類支持註解，表示會被看成{@code mybatis mapper}處理 配置了以後表示能夠自動引入mapper類-->  
    <mybatis:scan base-package="com.alibaba.dao"/>  
    <!--引入屬性文件 -->  
    <context:property-placeholder location="classpath:configuration.properties"/>  
      
    <!--數據庫鏈接-->  
    <bean id="dataSource" class="com.alibaba.druid.pool.DruidDataSource" init-method="init" destroy-method="close">   
        <property name="url" value="${jdbc.url}" />  
        <property name="username" value="${jdbc.username}"/>  
        <property name="password" value="${jdbc.password}"/>  
        <!-- 配置初始化大小、最小、最大 -->  
        <property name="initialSize"><value>1</value></property>  
        <property name="maxActive"><value>5</value></property>  
        <property name="minIdle"><value>1</value></property>  
        <!-- 配置獲取鏈接等待超時的時間 -->  
        <property name="maxWait"><value>60000</value></property>  
        <!-- 配置監控統計攔截的filters -->  
        <property name="filters"><value>stat</value></property>  
        <!-- 配置間隔多久才進行一次檢測，檢測須要關閉的空閒鏈接，單位是毫秒 -->  
        <property name="timeBetweenEvictionRunsMillis"><value>60000</value></property>  
        <!-- 配置一個鏈接在池中最小生存的時間，單位是毫秒 -->  
        <property name="minEvictableIdleTimeMillis"><value>300000</value></property>  
        <!--  
        <property name="validationQuery"><value>SELECT 'x'</value></property>  
        <property name="testWhileIdle"><value>true</value></property>  
        <property name="testOnBorrow"><value>false</value></property>  
        <property name="testOnReturn"><value>false</value></property>  
        <property name="poolPreparedStatements"><value>true</value></property>  
        <property name="maxOpenPreparedStatements"><value>20</value></property>  
         -->  
    </bean>  
      
    <!-- mybatis配置 -->  
    <bean id="sqlSessionFactory" class="org.mybatis.spring.SqlSessionFactoryBean">  
        <property name="dataSource" ref="dataSource" />  
    </bean>   
</beans>

　　3.web.xml整合SpringMVC和Mybatisspring

<?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_3_0.xsd" version="3.0">  
    <!--　該servlet爲tomcat,jetty等容器提供,將靜態資源映射從/改成/static/目錄，如原來訪問　http://localhost/foo.css　,如今http://localhost/static/foo.css　-->  
    <!-- 不攔截靜態文件 -->  
    <servlet-mapping>  
        <servlet-name>default</servlet-name>  
        <url-pattern>/js/*</url-pattern>  
        <url-pattern>/css/*</url-pattern>  
        <url-pattern>/images/*</url-pattern>  
        <url-pattern>/fonts/*</url-pattern>  
    </servlet-mapping>  
      
    <!-- 配置字符集 -->  
    <filter>  
        <filter-name>encodingFilter</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>  
        <init-param>  
            <param-name>forceEncoding</param-name>  
            <param-value>true</param-value>  
        </init-param>  
    </filter>  
    <filter-mapping>  
        <filter-name>encodingFilter</filter-name>  
        <url-pattern>/*</url-pattern>  
    </filter-mapping>  
      
    <!-- 初始化 DispatcherServlet時，該框架在 web應用程序WEB-INF目錄中尋找一個名爲[servlet-名稱]-servlet.xml的文件，  
            並在那裏定義相關的Beans，重寫在全局中定義的任何Beans -->  
    <servlet>  
        <servlet-name>springMybatis</servlet-name>  
        <servlet-class>org.springframework.web.servlet.DispatcherServlet</servlet-class>  
        <load-on-startup>1</load-on-startup>  
    </servlet>  
    <servlet-mapping>  
        <servlet-name>springMybatis</servlet-name>  
        <!-- 全部的的請求，都會被DispatcherServlet處理 -->  
        <url-pattern>/</url-pattern>  
    </servlet-mapping>  
       
    <context-param>  
        <param-name>contextConfigLocation</param-name>  
        <param-value>/WEB-INF/config/spring-*.xml</param-value>  
    </context-param>  
    <listener>  
        <listener-class>org.springframework.web.context.ContextLoaderListener</listener-class>  
    </listener>  
    <!-- druid web 監控 -->  
    <servlet>  
        <servlet-name>DruidStatView</servlet-name>  
        <servlet-class>com.alibaba.druid.support.http.StatViewServlet</servlet-class>  
    </servlet>  
    <servlet-mapping>  
        <servlet-name>DruidStatView</servlet-name>  
        <url-pattern>/druid/*</url-pattern>  
    </servlet-mapping>  
      
    <error-page>  
        <error-code>404</error-code>  
        <location>/error/404.jsp</location>  
    </error-page>  
    <error-page>  
        <error-code>500</error-code>  
        <location>/error/500.jsp</location>  
    </error-page>  
</web-app>

　　4.logback.xml日誌配置sql

<?xml version="1.0" encoding="UTF-8"?>  
<configuration>  
  
  <appender name="STDOUT" class="ch.qos.logback.core.ConsoleAppender">  
    <encoder>    
        <pattern>%d{HH:mm:ss.SSS} [%thread] %-5level %logger{36} - %msg%n</pattern>  
    </encoder>  
  </appender>  
    
  <logger name="test.LogbackTest" level="TRACE"/>  
    
  <logger name="com.alibaba.controller.TestController" level="TRACE"/>  
    
  <logger name="org.springframework.web.servlet.DispatcherServlet" level="DEBUG" />  
  <logger name="druid.sql" level="INFO" /><!-- 若是spring-config裏面沒有配置slf4j,就不會顯示sql日誌，logback只是slf4j的一個實現 -->  
  <root level="debug">  
    <appender-ref ref="STDOUT" />  
  </root>  
</configuration>

　　5.configuration.properties配置數據庫

jdbc.url=jdbc\:mysql\://localhost\:3306/druid?useUnicode\=true&characterEncoding\=UTF-8&zeroDateTimeBehavior\=convertToNull  
jdbc.username=root  
jdbc.password=123456

6.測試搭建是否成功，後臺代碼apache

首先是登陸，用了加密，能夠去掉spring-mvc

package com.alibaba.controller;  
  
  
import javax.annotation.Resource;  
import javax.servlet.http.HttpServletRequest;  
  
import org.apache.commons.codec.digest.DigestUtils;  
import org.slf4j.Logger;  
import org.slf4j.LoggerFactory;  
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.alibaba.model.User;  
import com.alibaba.service.UserService;  
import com.alibaba.util.RequestUtil;  
  
/** 
 * @author tfj 
 * 2014-7-26 
 */  
@Controller  
public class SystemController {  
    private final Logger log = LoggerFactory.getLogger(SystemController.class);  
    @Resource  
    private UserService userService;  
      
    @RequestMapping(value = "/",method = RequestMethod.GET)  
    public String home() {  
        log.info("返回首頁！");  
        return "index";  
    }  
      
    @RequestMapping(value = "/test/hello",method = RequestMethod.GET)  
    public String testHello() {  
        log.info("執行了testHello方法！");  
        return "testHello";  
    }  
      
    @RequestMapping(value = "/login",method = RequestMethod.POST)  
    public String testLogin(HttpServletRequest request,@RequestParam String username, @RequestParam String password) {  
        log.info("執行了testLogin方法！");  
        User user = userService.findUserByName(username);  
        if(user!=null){  
            if(user.getPassword().equals(DigestUtils.md5Hex(password))){  
                request.getSession().setAttribute("userId", user.getId());    
                request.getSession().setAttribute("user", username);    
                return "redirect:" + RequestUtil.retrieveSavedRequest();//跳轉至訪問頁面  
            }else{  
                log.info("密碼錯誤");    
                request.getSession().setAttribute("message", "用戶名密碼錯誤，請從新登陸");  
                return "login";   
            }  
        }else{  
            log.info("用戶名不存在");    
            request.getSession().setAttribute("message", "用戶名不存在，請從新登陸");  
            return "login";   
        }  
    }  
}

　　關於service和model就不寫了，寫一下mybatis的mapper類映射tomcat

<?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.alibaba.dao.UserMapper">      
    <select id="findUserByName" resultType="com.alibaba.model.User">  
        select id, username , password from sysuser where username = #{username}   
    </select>  
</mapper>

7.前臺jsp主要是登陸和登陸成功的頁面，就不寫了

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