springMVC 注解方式实现全程+文件上传

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springmvc的注解框架的实现吧：

Web.xml文件

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<?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_2_5.xsd" id="WebApp_ID" version="2.5">
<servlet>
<servlet-name>dispatcher</servlet-name> <servlet-class>org.springframework.web.servlet.DispatcherServlet</servlet-class>
</servlet>
<context-param>
<param-name>contextConfigLocation</param-name>
<param-value>
classpath:config/applicationContext-base.xml,
classpath:config/applicationContext*.xml
</param-value>
</context-param>
<servlet-mapping>
<servlet-name>dispatcher</servlet-name>
<url-pattern>*.do</url-pattern>
</servlet-mapping>
<listener>
<listener-class>org.springframework.web.context.ContextLoaderListener</listener-class>
</listener>
</web-app>

dispatcher-servlet.xml（注意：这个xml文件是springmvc的核心配置文件，实际上是一个applicationContext.xml文件，默认为WEB-INF路径下，若有另外的配置，需要在web.xml文件中配置：另外，该xml文件命名规范为web.xml文件中<servlet-name>dispatcher</servlet-name>配置的名字加上”-servlet.xml”，本例中为dispatcher-servlet.xml）

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<servlet>
<servlet-name>dispatcher</servlet-name> <servlet-class>org.springframework.web.servlet.DispatcherServlet</servlet-class>
<init-param>
<param-name>contextConfigLocation</param-name>
<!--
指定XML文件位置
<param-value>/WEB-INF/classes/springmvc.xml
<param-value>classpath*:springmvc.xml
-->
<param-value>classpath:springmvc.xml
</param-value>
</init-param>
</servlet>

dispatcher-servlet.xml：

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<?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-3.0.xsd
http://www.springframework.org/schema/aop http://www.springframework.org/schema/aop/spring-aop-3.0.xsd
http://www.springframework.org/schema/tx http://www.springframework.org/schema/tx/spring-tx-3.0.xsd
http://www.springframework.org/schema/context http://www.springframework.org/schema/context/spring-context-3.0.xsd
http://www.springframework.org/schema/mvc http://www.springframework.org/schema/mvc/spring-mvc-3.0.xsd"
default-autowire="byName">
<bean id="localeResolver" class="org.springframework.web.servlet.i18n.AcceptHeaderLocaleResolver">
</bean>
<bean id="viewResolver" class="org.springframework.web.servlet.view.InternalResourceViewResolver"
p:prefix="/WEB-INF/view/" p:suffix=".jsp">
<property name="viewClass">
<value>org.springframework.web.servlet.view.JstlView</value>
</property>
</bean>
<context:annotation-config />
<context:component-scan base-package="test.controller" />
<bean class="org.springframework.web.servlet.mvc.annotation.AnnotationMethodHandlerAdapter" />
<bean id="multipartResolver"
class="org.springframework.web.multipart.commons.CommonsMultipartResolver"
p:defaultEncoding="utf-8" />
</beans>

定义一个jsp页面：

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<%@ page language="java" contentType="text/html; charset=UTF-8"
pageEncoding="UTF-8"%>
<!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=ISO-8859-1">
<title>Insert title here</title>
</head>
<body>
<form action="login.do" method="post">
<input type="hidden" name="method" value="pageQuery"/>
<input type="hidden" name="pageNo" value="1"/>
userName:<input type="text" name="userName"/><br>
password:<input type="password" name="password"/><br>
<input type="submit" value="submit"/>
</form>
<hr>
<h1>test file upload</h1>
<form action="login.do" method="post" enctype="multipart/form-data">
<input type="hidden" name="method" value="upload"/>
<input type="file" name="file"/>
<input type="submit" value="upload"/>
</form>
</body>
</html>

Form表单映射类：Login：

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package test.entity;
public class Login {
private String userName; //从页面获取的值
private String password; //从页面获取的值
public String getUserName() {
return userName;
}
public void setUserName(String userName) {
this.userName = userName;
}
public String getPassword() {
return password;
}
public void setPassword(String password) {
this.password = password;
}
}

编写Controller：

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package test.controller;
import java.io.File;
import java.io.IOException;
import java.text.SimpleDateFormat;
import java.util.Date;
import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;
import org.springframework.stereotype.Controller;
import org.springframework.ui.ModelMap;
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.multipart.MultipartFile;
import org.springframework.web.multipart.MultipartHttpServletRequest;
import test.entity.Login;
import com.zhjy.core.util.Page;
@Controller
@RequestMapping("/login.do")
public class CopyOfTestController {
@RequestMapping
public String login(HttpServletRequest request, HttpServletResponse response, Login login) {
System.out.println(request.getParameter("userName"));
System.out.println(login.getUserName());
return "success";
}
/**
* 参数注入测试 @RequestParam("pageNo") int pageNo
* 页面请求需要带参数pageNo
* @param pageNo
* @param request
* @param model
* @return
* @throws Exception
*/
@RequestMapping(params = "method=pageQuery")
public String pageQuery(@RequestParam("pageNo") int pageNo,
HttpServletRequest request,ModelMap model) throws Exception{
System.out.println(pageNo);
String putModel="test put model string";
model.put("model", putModel);
return "/test/success";//页面跳转到WEB-INF/view/test/success.jsp页面
//注释：WEB-INF/view是配置文件中的前缀，.jsp 是配置文件中的后缀
//<bean id="viewResolver" //class="org.springframework.web.servlet.view.InternalResourceViewResolver"
// p:prefix="/WEB-INF/view/" p:suffix=".jsp">
}
/**
* 不同请求方式POST GET
* @param login
* @param request
* @param response
* @param model
* @return
*/
@RequestMapping(method=RequestMethod.POST, params = "method=save")
public String login(Login login, HttpServletRequest request,
HttpServletResponse response, ModelMap model) {
System.out.println(request.getParameter("userName"));
System.out.println(login.getUserName());
model.addAttribute("user", "user");
this.getOracleService().test();
return "/test/success";
}
/**
* 上传文件测试
* @param request
* @param model
* @return
*/
@RequestMapping(method=RequestMethod.POST, params = "method=upload")
public String upload(HttpServletRequest request,ModelMap model) {
MultipartHttpServletRequest multipartRequest = (MultipartHttpServletRequest) request;
SimpleDateFormat dateformat = new SimpleDateFormat("yyyy/MM/dd/HH");
/**构建图片保存的目录**/
String logoPathDir = "/files"+ dateformat.format(new Date());
/**得到图片保存目录的真实路径**/
String logoRealPathDir = request.getSession().getServletContext().getRealPath(logoPathDir);
/**根据真实路径创建目录**/
File logoSaveFile = new File(logoRealPathDir);
if(!logoSaveFile.exists())
logoSaveFile.mkdirs();
/**页面控件的文件流**/
MultipartFile multipartFile = multipartRequest.getFile("file");
/**获取文件的后缀**/
String suffix = multipartFile.getOriginalFilename().substring
(multipartFile.getOriginalFilename().lastIndexOf("."));
// /**使用UUID生成文件名称**/
// String logImageName = UUID.randomUUID().toString()+ suffix;//构建文件名称
String logImageName = multipartFile.getOriginalFilename();
/**拼成完整的文件保存路径加文件**/
String fileName = logoRealPathDir + File.separator + logImageName;
File file = new File(fileName);
try {
multipartFile.transferTo(file);
} catch (IllegalStateException e) {
e.printStackTrace();
} catch (IOException e) {
e.printStackTrace();
}
model.put("fileName", fileName);
return "/test/success";
}
}

在WEB-INF/view/test下建立success.jsp页面：

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<%@ page language="java" contentType="text/html; charset=ISO-8859-1"
pageEncoding="ISO-8859-1"%>
<!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=ISO-8859-1">
<title>login success</title>
</head>
<body>
<hr>
<h1>view/test/success.jsp</h1>
<h1>login success</h1>
success<br/>
userName:${userName }<br/>
success<br/>
login.userName :${login.userName }<br/>
success<br/>
user:${user }<br/>
<hr>
<h1>test file upload</h1>
fileName:${fileName }
</body>
</html>