创建父工程
创建统一的父工程,用来管理依赖及其版本
可以删除src目录,只写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.ityang.parent</groupId>
<artifactId>ssm</artifactId>
<version>1.0.0-SNAPSHOT</version>
<packaging>pom</packaging>
<!-- 集中定义依赖版本号 -->
<properties>
<junit.version>4.12</junit.version>
<spring.version>4.3.13.RELEASE</spring.version>
<mybatis.version>3.2.8</mybatis.version>
<mybatis.spring.version>1.2.2</mybatis.spring.version>
<mybatis.paginator.version>1.2.15</mybatis.paginator.version>
<mysql.version>5.1.32</mysql.version>
<slf4j.version>1.6.4</slf4j.version>
<jackson.version>2.9.0</jackson.version>
<druid.version>1.0.9</druid.version>
<httpclient.version>4.3.5</httpclient.version>
<jstl.version>1.2</jstl.version>
<servlet-api.version>2.5</servlet-api.version>
<jsp-api.version>2.0</jsp-api.version>
<joda-time.version>2.5</joda-time.version>
<commons-lang3.version>3.3.2</commons-lang3.version>
<commons-io.version>1.3.2</commons-io.version>
</properties>
<dependencyManagement>
<dependencies>
<!-- 单元测试 -->
<dependency>
<groupId>junit</groupId>
<artifactId>junit</artifactId>
<version>${junit.version}</version>
<scope>test</scope>
</dependency>
<dependency>
<groupId>org.springframework</groupId>
<artifactId>spring-test</artifactId>
<version>${spring.version}</version>
<scope>test</scope>
</dependency>
<!-- Spring -->
<dependency>
<groupId>org.springframework</groupId>
<artifactId>spring-context</artifactId>
<version>${spring.version}</version>
</dependency>
<dependency>
<groupId>org.springframework</groupId>
<artifactId>spring-beans</artifactId>
<version>${spring.version}</version>
</dependency>
<dependency>
<groupId>org.springframework</groupId>
<artifactId>spring-webmvc</artifactId>
<version>${spring.version}</version>
</dependency>
<dependency>
<groupId>org.springframework</groupId>
<artifactId>spring-jdbc</artifactId>
<version>${spring.version}</version>
</dependency>
<dependency>
<groupId>org.springframework</groupId>
<artifactId>spring-aspects</artifactId>
<version>${spring.version}</version>
</dependency>
<!-- Mybatis -->
<dependency>
<groupId>org.mybatis</groupId>
<artifactId>mybatis</artifactId>
<version>${mybatis.version}</version>
</dependency>
<dependency>
<groupId>org.mybatis</groupId>
<artifactId>mybatis-spring</artifactId>
<version>${mybatis.spring.version}</version>
</dependency>
<dependency>
<groupId>com.github.miemiedev</groupId>
<artifactId>mybatis-paginator</artifactId>
<version>${mybatis.paginator.version}</version>
</dependency>
<!-- MySql -->
<dependency>
<groupId>mysql</groupId>
<artifactId>mysql-connector-java</artifactId>
<version>${mysql.version}</version>
<scope>runtime</scope>
</dependency>
<dependency>
<groupId>org.slf4j</groupId>
<artifactId>slf4j-log4j12</artifactId>
<version>${slf4j.version}</version>
</dependency>
<!-- Jackson Json处理工具包 -->
<dependency>
<groupId>com.fasterxml.jackson.core</groupId>
<artifactId>jackson-databind</artifactId>
<version>${jackson.version}</version>
</dependency>
<!-- 连接池 -->
<dependency>
<groupId>com.alibaba</groupId>
<artifactId>druid</artifactId>
<version>${druid.version}</version>
</dependency>
<!-- httpclient -->
<dependency>
<groupId>org.apache.httpcomponents</groupId>
<artifactId>httpclient</artifactId>
<version>${httpclient.version}</version>
</dependency>
<!-- JSP相关 -->
<dependency>
<groupId>jstl</groupId>
<artifactId>jstl</artifactId>
<version>${jstl.version}</version>
</dependency>
<dependency>
<groupId>javax.servlet</groupId>
<artifactId>servlet-api</artifactId>
<version>${servlet-api.version}</version>
<scope>provided</scope>
</dependency>
<dependency>
<groupId>javax.servlet</groupId>
<artifactId>jsp-api</artifactId>
<version>${jsp-api.version}</version>
<scope>provided</scope>
</dependency>
<!-- 时间操作组件 -->
<dependency>
<groupId>joda-time</groupId>
<artifactId>joda-time</artifactId>
<version>${joda-time.version}</version>
</dependency>
<!-- Apache工具组件 -->
<dependency>
<groupId>org.apache.commons</groupId>
<artifactId>commons-lang3</artifactId>
<version>${commons-lang3.version}</version>
</dependency>
<dependency>
<groupId>org.apache.commons</groupId>
<artifactId>commons-io</artifactId>
<version>${commons-io.version}</version>
</dependency>
</dependencies>
</dependencyManagement>
<build>
<finalName>${project.artifactId}</finalName>
<plugins>
<!-- 资源文件拷贝插件 -->
<plugin>
<groupId>org.apache.maven.plugins</groupId>
<artifactId>maven-resources-plugin</artifactId>
<version>2.7</version>
<configuration>
<encoding>UTF-8</encoding>
</configuration>
</plugin>
<!-- java编译插件 -->
<plugin>
<groupId>org.apache.maven.plugins</groupId>
<artifactId>maven-compiler-plugin</artifactId>
<version>3.2</version>
<configuration>
<source>1.7</source>
<target>1.7</target>
<encoding>UTF-8</encoding>
</configuration>
</plugin>
</plugins>
<pluginManagement>
<plugins>
<!-- 配置Tomcat插件 -->
<plugin>
<groupId>org.apache.tomcat.maven</groupId>
<artifactId>tomcat7-maven-plugin</artifactId>
<version>2.2</version>
</plugin>
</plugins>
</pluginManagement>
</build>
</project>
Spring整合SpringMVC
1、创建模块工程,引入依赖
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">
<parent>
<artifactId>ssm</artifactId>
<groupId>com.ityang.parent</groupId>
<version>1.0.0-SNAPSHOT</version>
</parent>
<modelVersion>4.0.0</modelVersion>
<groupId>com.ityang</groupId>
<artifactId>demo-ssm</artifactId>
<version>1.0.0-SNAPSHOT</version>
<packaging>war</packaging>
<dependencies>
<dependency>
<groupId>junit</groupId>
<artifactId>junit</artifactId>
</dependency>
<dependency>
<groupId>org.springframework</groupId>
<artifactId>spring-test</artifactId>
</dependency>
<dependency>
<groupId>org.springframework</groupId>
<artifactId>spring-webmvc</artifactId>
</dependency>
<dependency>
<groupId>org.springframework</groupId>
<artifactId>spring-jdbc</artifactId>
</dependency>
<dependency>
<groupId>org.springframework</groupId>
<artifactId>spring-aspects</artifactId>
</dependency>
<dependency>
<groupId>org.mybatis</groupId>
<artifactId>mybatis</artifactId>
</dependency>
<!-- spring整合mybatis -->
<dependency>
<groupId>org.mybatis</groupId>
<artifactId>mybatis-spring</artifactId>
</dependency>
<dependency>
<groupId>mysql</groupId>
<artifactId>mysql-connector-java</artifactId>
</dependency>
<dependency>
<groupId>org.slf4j</groupId>
<artifactId>slf4j-log4j12</artifactId>
</dependency>
<dependency>
<groupId>com.alibaba</groupId>
<artifactId>druid</artifactId>
</dependency>
<dependency>
<groupId>jstl</groupId>
<artifactId>jstl</artifactId>
</dependency>
<dependency>
<groupId>javax.servlet</groupId>
<artifactId>servlet-api</artifactId>
</dependency>
<dependency>
<groupId>javax.servlet</groupId>
<artifactId>jsp-api</artifactId>
</dependency>
</dependencies>
<build>
<plugins>
<!-- 配置Tomcat插件 -->
<plugin>
<groupId>org.apache.tomcat.maven</groupId>
<artifactId>tomcat7-maven-plugin</artifactId>
<configuration>
<port>8080</port>
<path>/</path>
</configuration>
</plugin>
</plugins>
</build>
</project>
2、web.xml中配置spring核心监听器
<!-- 指定spring配置文件路径 -->
<context-param>
<param-name>contextConfigLocation</param-name>
<param-value>classpath:spring/applicationContext*.xml</param-value>
</context-param>
<!-- 工程启动时,创建IOC容器 -->
<listener>
<listener-class>org.springframework.web.context.ContextLoaderListener</listener-class>
</listener>
3、log4j 配置日志输出(log4j.properties)
### 设置###
log4j.rootLogger = debug,stdout,D,E
### 输出信息到控制抬 ###
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
### 输出DEBUG 级别以上的日志到=E://logs/error.log ###
log4j.appender.D = org.apache.log4j.DailyRollingFileAppender
log4j.appender.D.File = E://logs/log.log
log4j.appender.D.Append = true
log4j.appender.D.Threshold = DEBUG
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
### 输出ERROR 级别以上的日志到=E://logs/error.log ###
log4j.appender.E = org.apache.log4j.DailyRollingFileAppender
log4j.appender.E.File =E://logs/error.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
4、创建jdbc.properties
jdbc.driverClass=com.mysql.jdbc.Driver
jdbc.url=jdbc:mysql://localhost:3306/mybatis
jdbc.username=root
jdbc.password=123456
5、创建spring核心配置文件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:aop="http://www.springframework.org/schema/aop"
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/aop
http://www.springframework.org/schema/aop/spring-aop.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">
<!-- 引入外部的属性资源文件 -->
<context:property-placeholder location="classpath:jdbc.properties" />
<!-- 开启spring注解扫描,此处扫描的是业务包,controller交给springmvc扫描,mapper不用扫描,spring会自己创建mapper -->
<context:component-scan base-package="com.ityang.service"></context:component-scan>
<!-- 配置数据源,什么数据源都可以,c3p0也行,这里我们配置druid -->
<bean id="dataSource" class="com.alibaba.druid.pool.DruidDataSource">
<property name="driverClassName" value="${jdbc.driverClass}"></property>
<property name="url" value="${jdbc.url}"></property>
<property name="username" value="${jdbc.username}"></property>
<property name="password" value="${jdbc.password}"></property>
</bean>
</beans>
6、web.xml中配置springmvc入口
<!-- springmvc入口 -->
<servlet>
<servlet-name>springmvc</servlet-name>
<servlet-class>org.springframework.web.servlet.DispatcherServlet</servlet-class>
<!-- 指定springmvc配置文件路径 -->
<init-param>
<param-name>contextConfigLocation</param-name>
<param-value>classpath:spring/springmvc-servlet.xml</param-value>
</init-param>
<load-on-startup>1</load-on-startup>
</servlet>
<servlet-mapping>
<servlet-name>springmvc</servlet-name>
<!-- /表示拦截除了jsp以外的所有请求 -->
<url-pattern>/</url-pattern>
</servlet-mapping>
7、创建springmvc配置文件(springmvc-servlet.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:aop="http://www.springframework.org/schema/aop"
xmlns:context="http://www.springframework.org/schema/context" xmlns:tx="http://www.springframework.org/schema/tx"
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/aop
http://www.springframework.org/schema/aop/spring-aop.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/mvc
http://www.springframework.org/schema/mvc/spring-mvc.xsd">
<!-- 开启注解扫描,扫描controller包 -->
<context:component-scan base-package="com.ityang.controller"></context:component-scan>
<!-- mvc注解驱动 -->
<mvc:annotation-driven></mvc:annotation-driven>
<!-- 配置视图解析器 -->
<bean class="org.springframework.web.servlet.view.InternalResourceViewResolver">
<property name="prefix" value="/WEB-INF/jsp/"></property>
<property name="suffix" value=".jsp"></property>
</bean>
<!-- 入口处拦截除了jsp以外的所有请求(包括静态资源),这里处理静态资源拦截问题 -->
<mvc:default-servlet-handler/>
</beans>
8、创建包结构,引入资源
9、创建Controller类并访问测试
@Controller
@RequestMapping("user")
public class UserController {
@RequestMapping("list")
public String getList(){
return "users";
}
}
Spring整合Mybatis
1、创建aplicationContext-mybatis.xml文件
aplicationContext-mybatis.xml文件,专门用来存放spring整合mybatis的配置
<?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:aop="http://www.springframework.org/schema/aop"
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/aop
http://www.springframework.org/schema/aop/spring-aop.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">
<!-- 把SqlSessionFactory交给spring管理 -->
<bean id="sqlSessionFactory" class="org.mybatis.spring.SqlSessionFactoryBean">
<!-- 注入数据源 -->
<property name="dataSource" ref="dataSource"></property>
<!-- 注入mybatis配置文件路径 -->
<property name="configLocation" value="classpath:mybatis/mybatis-config.xml"></property>
</bean>
</beans>
2、配置mapper接口
在applicationContext.xml中我们只配置了扫描service层,那么dao包也要扫描,怎么办?
在mybatis中,dao类也可以称为mapper类,为了简化代码,我们使用maper接口的动态代理实现。现在,就要把mapper接口的动态代理实现交给spring管理(动态代理终极优化)
<!-- aplicationContext-mybatis.xml文件中把mapper接口的动态代理实现交给spring来管理 -->
<bean id="userMapper" class="org.mybatis.spring.mapper.MapperFactoryBean">
<!-- 注入SqlSessionFactory -->
<property name="sqlSessionFactory" ref="sqlSessionFactory"></property>
<!-- 注入mapper接口 -->
<property name="mapperInterface" value="com.ityang.mapper.UserMapper"></property>
</bean>
3、创建mapper接口和映射文件
public interface UserMapper {
/**
* 查询所有用户
* @return
*/
public List<User> findAllUsers();
}
<?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">
<!-- namespace与接口的全路径名一致 -->
<mapper namespace="com.ityang.mapper.UserMapper">
<!-- id与接口中的方法名一致 -->
<select id="findAllUsers" resultType="User">
select * from tb_user
</select>
</mapper>
4、创建mybatis核心配置文件
<?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>
<settings>
<!-- 开启驼峰匹配:完成从经典的数据库列名(下划线)到驼峰式属性的映射 -->
<setting name="mapUnderscoreToCamelCase" value="true"/>
</settings>
<typeAliases>
<!-- 类型别名简化 -->
<package name="com.ityang.domain"/>
</typeAliases>
<mappers>
<mapper resource="mybatis/mapper/UserMapper.xml"/>
</mappers>
</configuration>
5、Spring整合Mybatis优化
- Mapper接口的配置过于麻烦,每一个接口要都配置;
优化:aplicationContext-mybatis.xml配置接口扫描
<!-- 配置mapper接口扫描,mapper接口动态代理交给spring管理 -->
<bean class="org.mybatis.spring.mapper.MapperScannerConfigurer">
<property name="basePackage" value="com.ityang.mapper"></property>
</bean>
- Mapper映射文件,每次都需要在mybatis-config.xml中引入;
优化:aplicationContext-mybatis.xml中注入映射文件路径
<!-- 把SqlSessionFactory交给spring管理 -->
<bean id="sqlSessionFactory" class="org.mybatis.spring.SqlSessionFactoryBean">
<!-- 注入数据源 -->
<property name="dataSource" ref="dataSource"></property>
<!-- 注入mybatis配置文件路径 -->
<property name="configLocation" value="classpath:mybatis/mybatis-config.xml"></property>
<!-- 注入映射文件路径,mybatis/mapper/**/*.xml表示匹配mybatis/mapper目录及子目录下所有的xml文件 -->
<property name="mapperLocations" value="classpath:mybatis/mapper/**/*.xml"></property>
</bean>
- mybatis别名能否交给spring管理?
优化:aplicationContext-mybatis.xml中配置别名扫描
<!-- 把SqlSessionFactory交给spring管理 -->
<bean id="sqlSessionFactory" class="org.mybatis.spring.SqlSessionFactoryBean">
<!-- 注入数据源 -->
<property name="dataSource" ref="dataSource"></property>
<!-- 注入mybatis配置文件路径 -->
<property name="configLocation" value="classpath:mybatis/mybatis-config.xml"></property>
<!-- 注入映射文件路径,mybatis/mapper/**/*.xml表示匹配mybatis/mapper目录及子目录下所有的xml文件 -->
<property name="mapperLocations" value="classpath:mybatis/mapper/**/*.xml"></property>
<!-- 别名扫描 -->
<property name="typeAliasesPackage" value="com.ityang.domain"></property>
</bean>
到此基本整合完毕
查询用户信息案例
1、编写Controller
@Controller
@RequestMapping("user")
public class UserController {
@Autowired
private UserService userService;
@RequestMapping("list")
public String getList(Model model){
List<User> users = userService.findAllUsers();
model.addAttribute("users",users);
return "users";
}
}
2、编写Service
@Service
public class UserServiceImpl implements UserService{
@Autowired
private UserMapper userMapper;
@Override
public List<User> findAllUsers() {
List<User> users = userMapper.findAllUsers();
return users;
}
}
3、编写users.jsp页面
<%@ page language="java" contentType="text/html; charset=UTF-8"
pageEncoding="UTF-8"%>
<%@ taglib uri="http://java.sun.com/jsp/jstl/core" prefix="c"%>
<%@ taglib uri="http://java.sun.com/jsp/jstl/fmt" prefix="fmt"%>
<!DOCTYPE html PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN" "http://www.w3.org/TR/html4/loose.dtd">
<html>
<head>
<meta http-equiv="Content-Type" content="text/html; charset=UTF-8">
<title>Insert title here</title>
<link rel="stylesheet" type="text/css" href="/css/user.css" />
</head>
<body>
<table id="customers">
<tr>
<th>编号</th>
<th>用户名</th>
<th>姓名</th>
<th>年龄</th>
<th>性别</th>
<th>出生日期</th>
<th>创建时间</th>
<th>更新时间</th>
</tr>
<c:forEach items="${users}" var="user">
<tr>
<td>${user.id}</td>
<td>${user.userName}</td>
<td>${user.name}</td>
<td>${user.age}</td>
<td>
<c:choose>
<c:when test="${user.sex==1}">
男
</c:when>
<c:otherwise>
女
</c:otherwise>
</c:choose>
</td>
<td>
<fmt:formatDate value="${user.birthday}" pattern="yyyy-MM-dd"/>
</td>
<td>
<fmt:formatDate value="${user.created}" pattern="yyyy-MM-dd HH:mm:ss"/>
</td>
<td>
<fmt:formatDate value="${user.updated}" pattern="yyyy-MM-dd HH:mm:ss"/>
</td>
</tr>
</c:forEach>
</table>
</body>
</html>
4、启动测试
spring配置事务
增删改操作是要放在事务里的,多个增删改操作,要么全部成功,要么全部取消,保证数据的一致性与正确性。
创建applicationContext-tx.xml文件,专门存放与事物相关的配置
<?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:aop="http://www.springframework.org/schema/aop"
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/aop
http://www.springframework.org/schema/aop/spring-aop.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">
<!-- 配置事务管理器 -->
<bean id="transactionManager" class="org.springframework.jdbc.datasource.DataSourceTransactionManager">
<property name="dataSource" ref="dataSource"></property>
</bean>
<!-- 配置事务属性 -->
<tx:advice id="txAdvice" transaction-manager="transactionManager">
<tx:attributes>
<tx:method name="find*" read-only="true" />
<tx:method name="*" />
</tx:attributes>
</tx:advice>
<!-- 配置事务切面 -->
<aop:config>
<aop:pointcut expression="execution(* com.ityang.service.impl.*.*(..))" id="pt"/>
<aop:advisor advice-ref="txAdvice" pointcut-ref="pt"/>
</aop:config>
</beans>
解决中文乱码问题
在web.xml中配置一个编码过滤器,集中解决中文参数乱码问题
<!-- 字符编码过滤器 -->
<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>
</filter>
<filter-mapping>
<filter-name>encodingFilter</filter-name>
<url-pattern>/*</url-pattern>
</filter-mapping>
日期处理
1、有时候,用户输入的日期格式和系统需要接收的日期格式不符,就会报400参数列表错误,怎么办?
- 在实体类的日期属性上加@DateTimeFormat注解
// 出生日期
@DateTimeFormat(pattern = "yyyy-MM-dd")
private Date birthday;
2、如果我们需要单独接收一个日期参数,例如,在日常工作中,经常要以日期作为条件查询数据,那么springmvc怎么单独接收日期类型参数呢?
- 接收日期类型参数时指定格式
@RequestMapping("date")
public String test(@DateTimeFormat(pattern = "yyyy-MM-dd")@RequestParam("date")Date date){
System.out.println(date);
return "hello";
}