src/main/java/com/utils/MD5Utils.java

@@ -0,0 +1,28 @@
+package com.utils;
+
+import java.math.BigInteger;
+import java.security.MessageDigest;
+import java.security.NoSuchAlgorithmException;
+
+/**
+ * @ClassName MD5Utils
+ * @Description TODO
+ * @Author YHT
+ * @Date 2021/5/29 19:10
+ */
+public class MD5Utils {
+    public static String stringToMD5(String plainText) {
+        byte[] secretBytes = null;
+        try {
+            secretBytes = MessageDigest.getInstance("md5").digest(
+                    plainText.getBytes());
+        } catch (NoSuchAlgorithmException e) {
+            throw new RuntimeException("没有这个md5算法！");
+        }
+        String md5code = new BigInteger(1, secretBytes).toString(16);
+        for (int i = 0; i < 32 - md5code.length(); i++) {
+            md5code = "0" + md5code;
+        }
+        return md5code;
+    }
+}

src/main/resources/applicationContext-SpringMVC.xml

@@ -0,0 +1,41 @@
+<?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:p="http://www.springframework.org/schema/p"
+       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-3.1.xsd
+                        http://www.springframework.org/schema/context
+                        http://www.springframework.org/schema/context/spring-context-3.1.xsd
+                        http://www.springframework.org/schema/mvc
+                        http://www.springframework.org/schema/mvc/spring-mvc-4.0.xsd">
+    <!-- 自动扫描该包，使SpringMVC认为包下用了@controller注解的类是控制器 -->
+    <context:component-scan base-package="com.*" />
+    <mvc:annotation-driven></mvc:annotation-driven>
+
+    <!-- 定义跳转的文件的前后缀 ，视图模式配置-->
+    <bean class="org.springframework.web.servlet.view.InternalResourceViewResolver">
+        <!-- 这里的配置我的理解是自动给后面action的方法return的字符串加上前缀和后缀，变成一个 可用的url地址 -->
+        <property name="prefix" value="/WEB-INF/pages/" />
+        <property name="suffix" value=".jsp" />
+    </bean>
+
+    <!--浏览器请求静态资源时jsp中的：/css/**路径将映射到 /WEB-INF/css/**路径，而且该请求不会被DispatcherServlet拦截-->
+
+    <mvc:resources location="/css/" mapping="/css/**"/>
+    <mvc:resources location="/img/" mapping="/img/**"/>
+    <mvc:resources location="/js/" mapping="/js/**"/>
+    <mvc:resources location="/bootstrap/" mapping="/bootstrap/**"/>
+
+    <!-- 配置文件上传，如果没有使用文件上传可以不用配置，当然如果不配，那么配置文件中也不必引入上传组件包 -->
+    <bean id="multipartResolver"
+          class="org.springframework.web.multipart.commons.CommonsMultipartResolver">
+        <!-- 默认编码 -->
+        <property name="defaultEncoding" value="utf-8" />
+        <!-- 文件大小最大值 -->
+        <property name="maxUploadSize" value="10485760000" />
+        <!-- 内存中的最大值 -->
+        <property name="maxInMemorySize" value="40960" />
+    </bean>
+
+</beans>

src/main/resources/applicationContext-mybatis.xml

@@ -0,0 +1,57 @@
+<?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:p="http://www.springframework.org/schema/p"
+       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-3.1.xsd
+                        http://www.springframework.org/schema/context
+                        http://www.springframework.org/schema/context/spring-context-3.1.xsd
+                        http://www.springframework.org/schema/mvc
+                        http://www.springframework.org/schema/mvc/spring-mvc-4.0.xsd">
+    <!-- 自动扫描 -->
+    <context:component-scan base-package="com" />
+    <!-- 引入配置文件 -->
+    <bean id="propertyConfigurer"
+          class="org.springframework.beans.factory.config.PropertyPlaceholderConfigurer">
+        <property name="location" value="classpath:jdbc.properties" />
+    </bean>
+
+    <bean id="dataSource" class="org.apache.commons.dbcp.BasicDataSource"
+          destroy-method="close">
+        <property name="driverClassName" value="${driver}" />
+        <property name="url" value="${url}" />
+        <property name="username" value="${username}" />
+        <property name="password" value="${password}" />
+        <!-- 初始化连接大小 -->
+        <property name="initialSize" value="${initialSize}"></property>
+        <!-- 连接池最大数量 -->
+        <property name="maxActive" value="${maxActive}"></property>
+        <!-- 连接池最大空闲 -->
+        <property name="maxIdle" value="${maxIdle}"></property>
+        <!-- 连接池最小空闲 -->
+        <property name="minIdle" value="${minIdle}"></property>
+        <!-- 获取连接最大等待时间 -->
+        <property name="maxWait" value="${maxWait}"></property>
+    </bean>
+
+    <!-- spring和MyBatis完美整合，不需要mybatis的配置映射文件 -->
+    <bean id="sqlSessionFactory" class="org.mybatis.spring.SqlSessionFactoryBean">
+        <property name="dataSource" ref="dataSource" />
+        <!-- 自动扫描mapping.xml文件 -->
+        <property name="mapperLocations" value="classpath:mapper/*.xml"></property>
+    </bean>
+
+    <!-- DAO接口所在包名，Spring会自动查找其下的类 -->
+    <bean class="org.mybatis.spring.mapper.MapperScannerConfigurer">
+        <property name="basePackage" value="com.dao" />
+        <property name="sqlSessionFactoryBeanName" value="sqlSessionFactory"></property>
+    </bean>
+
+    <!-- (事务管理)transaction manager, use JtaTransactionManager for global tx -->
+    <bean id="transactionManager"
+          class="org.springframework.jdbc.datasource.DataSourceTransactionManager">
+        <property name="dataSource" ref="dataSource" />
+    </bean>
+
+</beans>

src/main/resources/jdbc.properties

@@ -0,0 +1,14 @@
+driver=com.mysql.jdbc.Driver
+url=jdbc:mysql://127.0.0.1:3306/sp_emp
+username=root
+password=root
+#定义初始连接数
+initialSize=0
+#定义最大连接数
+maxActive=20
+#定义最大空闲
+maxIdle=20
+#定义最小空闲
+minIdle=1
+#定义最长等待时间
+maxWait=60000

src/main/resources/log4j.properties

@@ -0,0 +1,19 @@
+#定义LOG输出级别
+log4j.rootLogger=INFO,Console,File
+#定义日志输出目的地为控制台
+log4j.appender.Console=org.apache.log4j.ConsoleAppender
+log4j.appender.Console.Target=System.out
+#可以灵活地指定日志输出格式，下面一行是指定具体的格式
+log4j.appender.Console.layout = org.apache.log4j.PatternLayout
+log4j.appender.Console.layout.ConversionPattern=[%c] - %m%n
+
+#文件大小到达指定尺寸的时候产生一个新的文件
+log4j.appender.File = org.apache.log4j.RollingFileAppender
+#指定输出目录
+log4j.appender.File.File = logs/ssm.log
+#定义文件最大大小
+log4j.appender.File.MaxFileSize = 10MB
+# 输出所以日志，如果换成DEBUG表示输出DEBUG以上级别日志
+log4j.appender.File.Threshold = ALL
+log4j.appender.File.layout = org.apache.log4j.PatternLayout
+log4j.appender.File.layout.ConversionPattern =[%p] [%d{yyyy-MM-dd HH\:mm\:ss}][%c]%m%n