1、新建web项目，并在web.xml加入spring mvc的servlet
<!-- spring mvc容器和servlet的定义 --> <servlet> <servlet-name>springMVC</servlet-name> <servlet-class>org.springframework.web.servlet.DispatcherServlet</servlet-class> <!-- 这里的参数如果不配置，则默认查找web-inf下的{servlet-name}-servlet.xml文件 --> <init-param> <param-name>contextConfigLocation</param-name> <param-value>/WEB-INF/springMVC.xml</param-value> </init-param> <load-on-startup>1</load-on-startup> </servlet> <servlet-mapping> <servlet-name>springMVC</servlet-name> <url-pattern>/</url-pattern> </servlet-mapping>
2、加入spring mvc的依赖jar包
备注:我这里除了spring的jar包外还添加了一些其他的功能（quartz、JSR303的hibernate实现、c3p0连接池、DB2驱动、spring json的支持(jackson)），这里并未完全加入spring的包，可根据项目的需要增减jar.
3、配置spring mvc的配置文件。
<?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:tx="http://www.springframework.org/schema/tx" xmlns:context="http://www.springframework.org/schema/context" xmlns:aop="http://www.springframework.org/schema/aop" xmlns:mvc="http://www.springframework.org/schema/mvc" xmlns:task="http://www.springframework.org/schema/task" xsi:schemaLocation="http://www.springframework.org/schema/beans http://www.springframework.org/schema/beans/spring-beans-4.0.xsd http://www.springframework.org/schema/tx http://www.springframework.org/schema/tx/spring-tx-4.0.xsd http://www.springframework.org/schema/context http://www.springframework.org/schema/context/spring-context-4.0.xsd http://www.springframework.org/schema/aop http://www.springframework.org/schema/aop/spring-aop-4.0.xsd http://www.springframework.org/schema/mvc http://www.springframework.org/schema/mvc/spring-mvc-4.0.xsd http://www.springframework.org/schema/task http://www.springframework.org/schema/task/spring-task-4.0.xsd"> <!-- Spring MVC配置 --> <context:annotation-config /> <!--扫描注解 --> <context:component-scan base-package="com.tf" /> <!--默认的mvc注解映射的支持 --> <mvc:annotation-driven/> <!-- 支持异步方法执行 --> <task:annotation-driven /> <!-- 视图解析器和json解析器 --> <bean class="org.springframework.web.servlet.view.ContentNegotiatingViewResolver"> <property name="mediaTypes"> <map> <entry key="html" value="text/html"/> <entry key="json" value="application/json"/> </map> </property> <property name="viewResolvers"> <list> <bean class="org.springframework.web.servlet.view.InternalResourceViewResolver"> <property name="prefix" value="/WEB-INF/jsp/" /> <!--可为空,方便实现自已的依据扩展名来选择视图解释类的逻辑 --> <property name="suffix" value=".jsp"/> </bean> </list> </property> <property name="defaultViews"> <list> <bean class="org.springframework.web.servlet.view.json.MappingJackson2JsonView" /> </list> </property> </bean> <!-- 文件上传解析器 --> <bean id="multipartResolver" class="org.springframework.web.multipart.commons.CommonsMultipartResolver"> <!-- one of the properties available; the maximum file size in bytes --> <property name="maxUploadSize" value="-1"/> </bean> <!-- 总错误处理 --> <bean id="exceptionResolver" class="org.springframework.web.servlet.handler.SimpleMappingExceptionResolver"> <property name="defaultErrorView"> <value>/error</value> </property> <property name="defaultStatusCode"> <value>500</value> </property> <property name="warnLogCategory"> <value>org.springframework.web.servlet.handler.SimpleMappingExceptionResolver </value> </property> </bean> <!-- 对静态资源文件的访问 --> <mvc:resources mapping="/images/**" location="/images/" cache-period="31556926" /> <mvc:resources mapping="/js/**" location="/js/" cache-period="31556926" /> <mvc:resources mapping="/css/**" location="/css/" cache-period="31556926" /> <!-- 数据库和事务配置 --> <!-- 加载配置文件 --> <context:property-placeholder location="classpath:jdbc.properties" /> <!-- 定义数据源 --> <bean id="dataSource" class="com.mchange.v2.c3p0.ComboPooledDataSource" destroy-method="close"> <property name="driverClass"> <value>${jdbc.driverClass}</value> </property> <property name="jdbcUrl"> <value>${jdbc.url}</value> </property> <property name="user"> <value>${jdbc.username}</value> </property> <property name="password"> <value>${jdbc.password}</value> </property> <!--连接池中保留的最小连接数。 --> <property name="minPoolSize"> <value>${c3p0.minPoolSize}</value> </property> <!--连接池中保留的最大连接数。Default: 15 --> <property name="maxPoolSize"> <value>${c3p0.maxPoolSize}</value> </property> <!--初始化时获取的连接数，取值应在minPoolSize与maxPoolSize之间。Default: 3 --> <property name="initialPoolSize"> <value>${c3p0.initialPoolSize}</value> </property> <!--每30秒检查所有连接池中的空闲连接。Default: 0 --> <property name="idleConnectionTestPeriod"> <value>${c3p0.idleConnectionTestPeriod}</value> </property> </bean> <!-- weblogic推荐使用jndi连接池 --> <!-- <bean id="dataSource" class="org.springframework.jndi.JndiObjectFactoryBean"> <property name="jndiName"> <value>java:comp/env/jdbc/myDatasource</value> </property> </bean> --> <!-- 定义jdbcTemplate --> <bean id="jdbcTemplate" class="org.springframework.jdbc.core.JdbcTemplate"> <property name="dataSource"> <ref bean="dataSource"/> </property> </bean> <bean id="namedParameterJdbcTemplate" class="org.springframework.jdbc.core.namedparam.NamedParameterJdbcTemplate"> <constructor-arg><ref bean="dataSource"/></constructor-arg> </bean> <!-- 定义事务管理器 --> <bean id="transactionManager" class="org.springframework.jdbc.datasource.DataSourceTransactionManager"> <property name="dataSource"> <ref bean="dataSource" /> </property> </bean> <!-- 配置事务特性 ，配置add、delete和update开始的方法，事务传播特性为required --> <tx:advice id="txAdvice" transaction-manager="transactionManager"> <tx:attributes> <tx:method name="save*" propagation="REQUIRED" /> <tx:method name="insert*" propagation="REQUIRED" /> <tx:method name="delete*" propagation="REQUIRED" /> <tx:method name="update*" propagation="REQUIRED" /> <tx:method name="login*" propagation="REQUIRED" /> <tx:method name="regist*" propagation="REQUIRED" /> <tx:method name="*" read-only="true" /> </tx:attributes> </tx:advice> <!-- 配置那些类的方法进行事务管理 --> <aop:config> <aop:pointcut id="allManagerMethod" expression="execution (* com.tf.*.service.*.*(..))" /> <aop:advisor advice-ref="txAdvice" pointcut-ref="allManagerMethod" /> </aop:config> </beans>
4、配置log4j
log4j.rootCategory=INFO, stdout , R
log4j.appender.stdout=org.apache.log4j.ConsoleAppender
log4j.appender.stdout.layout=org.apache.log4j.PatternLayout
log4j.appender.stdout.layout.ConversionPattern=[TF] %p [%t] %C.%M(%L) | %m%n
log4j.appender.R=org.apache.log4j.DailyRollingFileAppender
log4j.appender.R.File=E:/mylog.log
log4j.appender.R.layout=org.apache.log4j.PatternLayout
log4j.appender.R.Threshold = WARN
log4j.appender.R.layout.ConversionPattern=%d-[TF] %p %t %c - %m%n
#全局异常记录
log4j.logger.org.springframework.web.servlet.handler.SimpleMappingExceptionResolver=WARN
#项目的异常记录
log4j.logger.com.tf=ERROR
5、编写测试代码
package com.tf.model1.controller; import java.util.HashMap; import java.util.List; import java.util.Map; import javax.annotation.Resource; import javax.servlet.http.HttpServletRequest; import javax.validation.Valid; import org.springframework.stereotype.Controller; import org.springframework.validation.BindingResult; import org.springframework.validation.ObjectError; import org.springframework.web.bind.annotation.PathVariable; import org.springframework.web.bind.annotation.RequestMapping; import org.springframework.web.bind.annotation.RequestMethod; import org.springframework.web.bind.annotation.RequestParam; import org.springframework.web.bind.annotation.ResponseBody; import org.springframework.web.context.WebApplicationContext; import org.springframework.web.multipart.MultipartFile; import org.springframework.web.servlet.mvc.support.RedirectAttributes; import org.springframework.web.servlet.support.RequestContextUtils; import com.tf.model1.bean.User; import com.tf.model1.service.TestService; @Controller //@RequestMapping(value="/test") public class TestRestController { @Resource private TestService testService; //接收get请求 @RequestMapping(value="/test",method=RequestMethod.GET) //可以自动根据名称映射参数，也可以手动指定 public String test(@RequestParam(value="name",defaultValue="admin")String username,HttpServletRequest request){ //public String test(@RequestParam("name")String username,HttpServletRequest request){ //public String test(String name,HttpServletRequest request){ //获取到spring的applicationContext对象 WebApplicationContext context = RequestContextUtils.getWebApplicationContext(request); System.out.println("-------------------> name:" +username); return "test"; } //redirect/forward:url方式转到另一个Action进行连续的处理 @RequestMapping("/redirect") public String testRedirect(){ return "redirect:/index.jsp"; } //重定向并携带参数 @RequestMapping("/redirectAttribute") public String testRdirectWithAttribute(RedirectAttributes attributes){ attributes.addAttribute("name", "zhangsan"); return "redirect:/login.jsp"; } //上传1 @RequestMapping(value = "/upload", method = RequestMethod.POST) public String upload(@RequestParam("name") String name, @RequestParam("file") MultipartFile file,RedirectAttributes attributes){ System.out.println("param:"+name); if(!file.isEmpty()){ System.out.println("upload ok"); } attributes.addAttribute("name", "upload success"); return "redirect:/login.jsp"; } //接收ajax请求 //使用url的表达式动态传递参数 //返回json @RequestMapping("/uri/{userId}") //多个url参数可以用多个注解和方法参数来接收 public @ResponseBody Map uriTemplate(@PathVariable String userId){ //也可以这么写 //public @ResponseBody Map uriTemplate(@PathVariable("userId") String loginUserId){ System.out.println("url的参数为:"+userId); Map<String, String> map = new HashMap<String, String>(); map.put("user", userId); return map; } //测试另外一种json方式 @RequestMapping(value="/nextjson",produces="application/json") //写在方法上还是返回参数前效果一致 //@ResponseBody public @ResponseBody String testNextJson(){ return "json"; } //调用业务类执行保存操作 @RequestMapping(value="/save",produces="application/json") public @ResponseBody Map<String, String> testSave(){ this.testService.save(); Map<String, String> map = new HashMap<String, String>(); map.put("isOk", "success"); return map; } //spring使用hibernate的valid进行数据校验 @RequestMapping("/login") public String testValid(@Valid User user, BindingResult result){ if (result.hasErrors()){ List<ObjectError> errorList = result.getAllErrors(); for(ObjectError error : errorList){ System.out.println(error.getDefaultMessage()); } } return "test"; } }
package com.tf.model1.bean; import javax.validation.constraints.Max; import javax.validation.constraints.NotNull; import org.hibernate.validator.constraints.Email; import com.tf.common.db.PK; import com.tf.common.db.Table; /** * @Null 限制只能为null @NotNull 限制必须不为null @AssertFalse 限制必须为false @AssertTrue 限制必须为true @DecimalMax(value) 限制必须为一个不大于指定值的数字 @DecimalMin(value) 限制必须为一个不小于指定值的数字 @Digits(integer,fraction) 限制必须为一个小数，且整数部分的位数不能超过integer，小数部分的位数不能超过fraction @Future 限制必须是一个将来的日期 @Max(value) 限制必须为一个不大于指定值的数字 @Min(value) 限制必须为一个不小于指定值的数字 @Past 限制必须是一个过去的日期 @Pattern(value) 限制必须符合指定的正则表达式 @Size(max,min) 限制字符长度必须在min到max之间 * * @author yzl * */ @Table("T_USER") public class User { @PK private String userId; @NotNull(message="名字不能为空") private String userName; @Max(value=120,message="年龄最大不能查过120") private int age; @Email(message="邮箱格式错误") private String email; public String getEmail() { return email; } public void setEmail(String email) { this.email = email; } public String getUserId() { return userId; } public void setUserId(String userId) { this.userId = userId; } public String getUserName() { return userName; } public void setUserName(String userName) { this.userName = userName; } public int getAge() { return age; } public void setAge(int age) { this.age = age; } }
<mvc:annotation-driven /> 是一种简写形式，完全可以手动配置替代这种简写形式，简写形式可以让初学都快速应用默认配置方案。
<mvc:annotation-driven />
会自动注册DefaultAnnotationHandlerMapping与AnnotationMethodHandlerAdapter
两个bean,是spring
MVC为@Controllers分发请求所必须的。
并提供了：数据绑定支持，@NumberFormatannotation支持，@DateTimeFormat支持，@Valid支持，读写XML的支持（JAXB），读写JSON的支持（Jackson）。
原文：http://www.cnblogs.com/yangzhilong/p/3724934.html