java：Springmvc框架1（基本配置，注解配置，转换器引入）
1.springmvc01:（基本配置）
web.xml:
<?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" xsi:schemaLocation="http://java.sun.com/xml/ns/javaee http://java.sun.com/xml/ns/javaee/web-app_3_0.xsd" id="WebApp_ID" version="3.0"> <display-name>springmvc01</display-name> <welcome-file-list> <welcome-file>index.html</welcome-file> <welcome-file>index.htm</welcome-file> <welcome-file>index.jsp</welcome-file> <welcome-file>default.html</welcome-file> <welcome-file>default.htm</welcome-file> <welcome-file>default.jsp</welcome-file> </welcome-file-list> <!-- spring mvc的前端控制器,类似struts2的核心过滤器 --> <servlet> <servlet-name>springmvc</servlet-name> <servlet-class>org.springframework.web.servlet.DispatcherServlet</servlet-class> <!-- 通过contextConfigLocation参数指定配置文件的位置，默认在WEB-INF/查找名称为 [servlet-name]-servlet.xml --> <init-param> <param-name>contextConfigLocation</param-name> <param-value>classpath:springmvc.xml</param-value> </init-param> <!-- servlet随web容器而启动 --> <load-on-startup>1</load-on-startup> </servlet> <servlet-mapping> <servlet-name>springmvc</servlet-name> <url-pattern>*.action</url-pattern> </servlet-mapping> </web-app>
springmvc.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" xsi:schemaLocation="http://www.springframework.org/schema/beans http://www.springframework.org/schema/beans/spring-beans-4.3.xsd"> <!-- 处理器映射器 --> <!-- 根据bean的name进行查找Handler处理器 将请求的url配置在bean的name中 --> <!-- 这是一个默认的映射处理器,即使不配置，那么也是默认就是这个 --> <bean class="org.springframework.web.servlet.handler.BeanNameUrlHandlerMapping"></bean> <!-- HandlerAdapter适配器 --> <!-- 注意：这个适配器不是必须配置的，这是默认的、他在servlet容器已启动就被加载--> <bean class="org.springframework.web.servlet.mvc.SimpleControllerHandlerAdapter"/> <!-- 配置自定义Handler控制器 --> <!-- Handler后端控制器 --> <!-- 配置controller ,使用beanName:name="/hello.action"进行进行请求映射匹配--> <bean name="/hello.action" class="cn.zzsxt.controller.HelloController"></bean> <!-- 配置视图解析器 --> <!-- InternalResourceViewResolver：支持JSP视图解析 --> <!-- viewClass：JstlView表示JSP模板页面需要使用JSTL标签库，所以classpath中必须包含jstl的相关jar包； --> <!-- prefix 和suffix：查找视图页面的前缀和后缀，最终视图的址为： --> <!-- 前缀+逻辑视图名+后缀，逻辑视图名需要在controller中返回ModelAndView指定，比如逻辑视图名为hello，--> <!-- 则最终返回的jsp视图地址 "WEB-INF/view/hello.jsp" --> <bean class="org.springframework.web.servlet.view.InternalResourceViewResolver"> <property name="viewClass" value="org.springframework.web.servlet.view.JstlView"></property> <property name="prefix" value="/WEB-INF/jsp/"></property> <property name="suffix" value=".jsp"></property> </bean> </beans>
HelloController.java:
package cn.zzsxt.controller; import javax.servlet.http.HttpServletRequest; import javax.servlet.http.HttpServletResponse; import org.springframework.web.servlet.ModelAndView; import org.springframework.web.servlet.mvc.Controller; /** * 后端控制器,类似与struts2的业务逻辑action * @author Think * */ public class HelloController implements Controller { /** * 处理用户请求的方法，类似struts2中action的execute方法 */ @Override public ModelAndView handleRequest(HttpServletRequest request, HttpServletResponse response) throws Exception { //处理用户请求 ModelAndView mv = new ModelAndView(); mv.addObject("hello", "hello,spring mvc !");//request.setAttribute("hello","hello,spring mvc!"); // mv.setViewName("/WEB-INF/jsp/hello.jsp"); mv.setViewName("hello");//视图的逻辑名称 return mv; } }
index.jsp:
<%@ page language="java" import="java.util.*" pageEncoding="UTF-8"%> <% String path = request.getContextPath(); String basePath = request.getScheme()+"://"+request.getServerName()+":"+request.getServerPort()+path+"/"; %> <!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN"> <html> <head> <base href="<%=basePath%>"> <title>My JSP 'index.jsp' starting page</title> <meta http-equiv="pragma" content="no-cache"> <meta http-equiv="cache-control" content="no-cache"> <meta http-equiv="expires" content="0"> <meta http-equiv="keywords" content="keyword1,keyword2,keyword3"> <meta http-equiv="description" content="This is my page"> <!-- <link rel="stylesheet" type="text/css" href="styles.css"> --> </head> <body> <a href="hello.action">hello springmvc!</a> </body> </html>
2.springmvc2:（注解配置）
springmvc.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: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-4.3.xsd http://www.springframework.org/schema/mvc http://www.springframework.org/schema/mvc/spring-mvc.xsd http://www.springframework.org/schema/context http://www.springframework.org/schema/context/spring-context.xsd"> <!-- 注解扫描!!!--> <context:component-scan base-package="cn.zzsxt.controller"></context:component-scan> <!-- 注解映射器 说明 ：对类中标记@ResquestMapping的方法进行映射，根据ResquestMapping定义的url匹配 ResquestMapping标记的方法，匹配成功返回HandlerMethod对象给前端控制器，HandlerMethod对象中封装url对应的方法Method --> <!-- <bean class="org.springframework.web.servlet.mvc.method.annotation.RequestMappingHandlerMapping"/> --> <!-- 注解适配器 说明：注解式处理器适配器，对标记@ResquestMapping的方法进行适配。 --> <!-- <bean class="org.springframework.web.servlet.mvc.method.annotation.RequestMappingHandlerAdapter"/> --> <!-- springmvc使用<mvc:annotation-driven> --> <!-- 自动加载RequestMappingHandlerMapping和RequestMappingHandlerAdapter， --> <!-- 可用在springmvc.xml配置文件中使用<mvc:annotation-driven>替代注解处理器和适配器的配置。 --> <mvc:annotation-driven></mvc:annotation-driven> <!-- 配置视图解析器 --> <!-- InternalResourceViewResolver：支持JSP视图解析 --> <!-- viewClass：JstlView表示JSP模板页面需要使用JSTL标签库，所以classpath中必须包含jstl的相关jar包； --> <!-- prefix 和suffix：查找视图页面的前缀和后缀，最终视图的址为： --> <!-- 前缀+逻辑视图名+后缀，逻辑视图名需要在controller中返回ModelAndView指定，比如逻辑视图名为hello，--> <!-- 则最终返回的jsp视图地址 "WEB-INF/view/hello.jsp" --> <bean class="org.springframework.web.servlet.view.InternalResourceViewResolver"> <property name="viewClass" value="org.springframework.web.servlet.view.JstlView"></property> <property name="prefix" value="/WEB-INF/jsp/"></property> <property name="suffix" value=".jsp"></property> </bean> </beans>
web.xml:
<?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" xsi:schemaLocation="http://java.sun.com/xml/ns/javaee http://java.sun.com/xml/ns/javaee/web-app_3_0.xsd" id="WebApp_ID" version="3.0"> <display-name>springmvc01</display-name> <welcome-file-list> <welcome-file>index.html</welcome-file> <welcome-file>index.htm</welcome-file> <welcome-file>index.jsp</welcome-file> <welcome-file>default.html</welcome-file> <welcome-file>default.htm</welcome-file> <welcome-file>default.jsp</welcome-file> </welcome-file-list> <!-- spring mvc的前端控制器,类似struts2的核心过滤器 --> <servlet> <servlet-name>springmvc</servlet-name> <servlet-class>org.springframework.web.servlet.DispatcherServlet</servlet-class> <!-- 通过contextConfigLocation参数指定配置文件的位置，默认在WEB-INF/查找名称为 [servlet-name]-servlet.xml --> <init-param> <param-name>contextConfigLocation</param-name> <param-value>classpath:springmvc.xml</param-value> </init-param> <!-- servlet随web容器而启动 --> <load-on-startup>1</load-on-startup> </servlet> <servlet-mapping> <servlet-name>springmvc</servlet-name> <url-pattern>*.action</url-pattern> </servlet-mapping> </web-app>
HelloController.java:
package cn.zzsxt.controller; import java.io.IOException; import javax.servlet.ServletException; import javax.servlet.http.HttpServletRequest; import javax.servlet.http.HttpServletResponse; import org.springframework.stereotype.Controller; import org.springframework.web.bind.annotation.RequestMapping; import org.springframework.web.bind.annotation.RequestMethod; import org.springframework.web.servlet.ModelAndView; /** * @Controller:控制器 * @RequestMapping:访问该处理器的映射路径。 * 如果在类的上边添加该注解，类似struts2的包的命名空间(窄化路径) * 如果在业务方法的上方添加该注解，代表方法该方法对应的url * * /hello/aa.action--->aa() * /hello/bb.action--->bb() * * */ @Controller @RequestMapping("/hello") public class HelloController { //返回值为ModelAndView @RequestMapping(value="/aa",method=RequestMethod.GET) public ModelAndView aa(){ ModelAndView mv = new ModelAndView(); mv.addObject("hello","springmvc注解开发示例!"); mv.setViewName("hello"); return mv; } //返回值为void @RequestMapping("/bb") public void bb(HttpServletRequest request,HttpServletResponse response){ request.setAttribute("hello", "返回值为void的controller方法!"); try { request.getRequestDispatcher("/WEB-INF/jsp/hello.jsp").forward(request, response); } catch (ServletException e) { e.printStackTrace(); } catch (IOException e) { e.printStackTrace(); } } //返回值为String(逻辑视图名称),默认使用的请求转发 @RequestMapping("/cc") public String cc(HttpServletRequest request){ request.setAttribute("hello", "返回值为String的controller方法!"); return "hello";// /WEB-INF/jsp/hello.jsp } //重定向redirect: @RequestMapping("/dd") public String dd(HttpServletRequest request){ request.setAttribute("hello", "返回值为String的controller方法!"); // return "forward:hello";//如果请求转发到controller中的方法(类似与struts2的chain),需要在前面添加forward return "redirect:/WEB-INF/jsp/hello.jsp";// /WEB-INF/jsp/hello.jsp } }
3.springmvc03：（转换器引入，日期转换）
web.xml：
<?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" xsi:schemaLocation="http://java.sun.com/xml/ns/javaee http://java.sun.com/xml/ns/javaee/web-app_3_0.xsd" id="WebApp_ID" version="3.0"> <display-name>springmvc01</display-name> <welcome-file-list> <welcome-file>index.html</welcome-file> <welcome-file>index.htm</welcome-file> <welcome-file>index.jsp</welcome-file> <welcome-file>default.html</welcome-file> <welcome-file>default.htm</welcome-file> <welcome-file>default.jsp</welcome-file> </welcome-file-list> <!-- spring mvc的前端控制器,类似struts2的核心过滤器 --> <servlet> <servlet-name>springmvc</servlet-name> <servlet-class>org.springframework.web.servlet.DispatcherServlet</servlet-class> <!-- 通过contextConfigLocation参数指定配置文件的位置，默认在WEB-INF/查找名称为 [servlet-name]-servlet.xml --> <init-param> <param-name>contextConfigLocation</param-name> <param-value>classpath:springmvc.xml</param-value> </init-param> <!-- servlet随web容器而启动 --> <load-on-startup>1</load-on-startup> </servlet> <servlet-mapping> <servlet-name>springmvc</servlet-name> <url-pattern>*.action</url-pattern> </servlet-mapping> <!-- 解决post提交乱码问题 --> <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> </web-app>
springmvc.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: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-4.3.xsd http://www.springframework.org/schema/mvc http://www.springframework.org/schema/mvc/spring-mvc.xsd http://www.springframework.org/schema/context http://www.springframework.org/schema/context/spring-context.xsd"> <!-- 注解扫描!!!--> <context:component-scan base-package="cn.zzsxt.controller"></context:component-scan> <!-- 配置视图解析器 --> <!-- InternalResourceViewResolver：支持JSP视图解析 --> <!-- viewClass：JstlView表示JSP模板页面需要使用JSTL标签库，所以classpath中必须包含jstl的相关jar包； --> <!-- prefix 和suffix：查找视图页面的前缀和后缀，最终视图的址为： --> <!-- 前缀+逻辑视图名+后缀，逻辑视图名需要在controller中返回ModelAndView指定，比如逻辑视图名为hello，--> <!-- 则最终返回的jsp视图地址 "WEB-INF/view/hello.jsp" --> <bean class="org.springframework.web.servlet.view.InternalResourceViewResolver"> <property name="viewClass" value="org.springframework.web.servlet.view.JstlView"></property> <property name="prefix" value="/WEB-INF/jsp/"></property> <property name="suffix" value=".jsp"></property> </bean> <!-- 注解映射器 说明 ：对类中标记@ResquestMapping的方法进行映射，根据ResquestMapping定义的url匹配 ResquestMapping标记的方法，匹配成功返回HandlerMethod对象给前端控制器，HandlerMethod对象中封装url对应的方法Method --> <!-- <bean class="org.springframework.web.servlet.mvc.method.annotation.RequestMappingHandlerMapping"/> --> <!-- 注解适配器 说明：注解式处理器适配器，对标记@ResquestMapping的方法进行适配。 --> <!-- <bean class="org.springframework.web.servlet.mvc.method.annotation.RequestMappingHandlerAdapter"/> --> <!-- springmvc使用<mvc:annotation-driven> --> <!-- 自动加载RequestMappingHandlerMapping和RequestMappingHandlerAdapter， --> <!-- 可用在springmvc.xml配置文件中使用<mvc:annotation-driven>替代注解处理器和适配器的配置。 --> <mvc:annotation-driven conversion-service="conversionService"></mvc:annotation-driven> <!-- 自定义类型转换器 --> <bean id="conversionService" class="org.springframework.format.support.FormattingConversionServiceFactoryBean"> <property name="converters"> <list> <bean class="cn.zzsxt.converter.CustomDateConverter"></bean> </list> </property> </bean> </beans>
UserController.java：
package cn.zzsxt.controller; import org.springframework.stereotype.Controller; import org.springframework.ui.Model; import org.springframework.web.bind.annotation.RequestMapping; import org.springframework.web.bind.annotation.RequestMethod; import cn.zzsxt.entity.Userinfo; /** * 约定大于配置 * @author Think * */ @Controller @RequestMapping("/user") public class UserController { //根据用户请求访问/WEB-INF/jsp/register.jsp @RequestMapping(value="/register",method=RequestMethod.GET) public String register(){ return "register"; } @RequestMapping(value="/register2",method=RequestMethod.GET) public String register2(){ return "register2"; } //@RequestParam(name="uname")：参数绑定的注解,通过该注解可以解决参数名称与controller中形参名称不一致的问题。 // @RequestMapping(value="/register",method=RequestMethod.POST) // public String register(@RequestParam(name="userName",required=true) String uname,@RequestParam(name="userPass") String upass,Model model){ // System.out.println("执行了用户注册，用户名:"+uname+",密码:"+upass); // model.addAttribute("userName", uname);//request.setAttribute("userName",uname); // return "success"; // } @RequestMapping(value="/register",method=RequestMethod.POST) public String register(String userName,String userPass,Model model){ System.out.println("执行了用户注册，用户名:"+userName+",密码:"+userPass); model.addAttribute("userName", userName);//request.setAttribute("userName",userName); return "success"; } @RequestMapping(value="/register2",method=RequestMethod.POST) public String register2(Userinfo user,Model model){ System.out.println("执行了用户注册2，用户名:"+user.getUserName()+",密码:"+user.getUserPass()+",生日:"+user.getBirthDay()); model.addAttribute("user", user);//request.setAttribute("userName",userName); return "success2"; } }
CustomDateConverter.java：
package cn.zzsxt.converter; import java.text.ParseException; import java.text.SimpleDateFormat; import java.util.Date; import org.springframework.core.convert.converter.Converter; /** * 自定义类型转换器 * @author Think * */ public class CustomDateConverter implements Converter<String, Date> { @Override public Date convert(String source) { SimpleDateFormat sdf = new SimpleDateFormat("yyyy-MM-dd"); try { Date date = sdf.parse(source); return date; } catch (ParseException e) { e.printStackTrace(); } return null; } }
