spring mvc

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package  org.base.controller; import  org.base.pojo.Department; import  org.springframework.stereotype.Controller; import  org.springframework.web.bind.annotation.RequestMapping; import  org.springframework.web.bind.annotation.RequestParam; @Controller public  class  DeptController {   /**    * 映射的url http://localhost:端口号/项目名/test.do    * 跳转到 (prefix)test.jsp(suffix)页面    */   @RequestMapping ( "/test" )   public  String test(){    System.out.println( "test" );    return  "test" ;   }   /**    * 如果方法无返回值，则跳转到 testP.jsp页面，即映射名    * 对于方法中的参数，可以对应url中的参数自动赋值    * 这里注意，如果url中的参数和方法定义的不一致，例如，此处的age=1.5，那么会报400错误    */   @RequestMapping ( "/testP" )   public  void  testParam(String name,Integer age){    System.out.println( "name:" +name+ ",age:" +age);   }      /**    * 也可以显式声明url参数    */   @RequestMapping ( "/testP1" )   public  void  testParam1( @RequestParam ( "name" )String name,Integer age){    System.out.println( "name:" +name+ ",age:" +age);   }      /**    * 自动注入bean属性，注意，url中形式是 departmentId=12,不是  对象.属性  形式    */   @RequestMapping ( "/testP2" )   public  void  testParam2(Department dept){    System.out.println( "dept:" +dept);   } /**    * ResponseBody注解：此方法返回值直接写入 response的body中，默认是json    * 注意要导入  jackson.jar    */   @RequestMapping ( "/test2" )   @ResponseBody   public  Department test2(){    Department dept =  new  Department( 12 ,  "abc" ,  31 ,  5 );    return  dept;   }    //@RequestMapping 注解的方法支持很多参数： HttpServletRequest/Response,HttpSession,Writer   // 不支持对象.属性传值方法，如果重名，/**    * restful 风格的传参方式    */   @RequestMapping ( "/test3/{str}" )     public  void  test3( @PathVariable ( "str" )String str){      System.out.println( "str:" +str);     }          /**      * date 日期类型的注入      */     @RequestMapping ( "/test4" )     public  void  test4( @DateTimeFormat (iso=ISO.DATE)Date d){      if (d!= null )       System.out.println(        new  SimpleDateFormat( "yyyy-MM-dd HH:mm:ss" ).format(d));     }  }

@ResponseBody 可以将该方法返回的值 写入到 response的body中去(String,json,xml)。

@RequestMapping 也可以用于整个类

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@Controller @RequestMapping ( "/emp/*" ) public  class  EmpController {     @RequestMapping ( "test1" )  // 这里匹配的url就是/emp/test1.do   public  void  test1(String s){      System.out.println( "s:" +s);   } }

spring 配置文件

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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:tx=" http://www.springframework.org/schema/tx "     xmlns:aop=" http://www.springframework.org/schema/aop "    xmlns:context=" http://www.springframework.org/schema/context "     xmlns:jee=" http://www.springframework.org/schema/jee "    xmlns:mvc=" http://www.springframework.org/schema/mvc "    xmlns:p=" http://www.springframework.org/schema/p "     xsi:schemaLocation=" http://www.springframework.org/schema/tx http://www.springframework.org/schema/tx/spring-tx-2.5.xsd http://www.springframework.org/schema/aop http://www.springframework.org/schema/aop/spring-aop-2.5.xsd http://www.springframework.org/schema/beans http://www.springframework.org/schema/beans/spring-beans-2.5.xsd   http://www.springframework.org/schema/context http://www.springframework.org/schema/context/spring-context-2.5.xsd  http://www.springframework.org/schema/jee http://www.springframework.org/schema/jee/spring-jee-2.5.xsd http://www.springframework.org/schema/mvc     http://www.springframework.org/schema/mvc/spring-mvc.xsd ">   <!-- 加载配置文件 -->   < context:property-placeholder  location = "classpath:config/jdbc.properties"  />   < context:component-scan  base-package = "org.base"  />   <!-- 开启基于注解的mvc配置 -->   < mvc:annotation-driven >    < mvc:message-converters >     < bean  class = "org.springframework.http.converter.json.MappingJacksonHttpMessageConverter" >      <!-- 解决"IE下返回json提示下载"问题 -->      < property  name = "supportedMediaTypes"  value = "text/plain;charset=UTF-8" ></ property >     </ bean >    </ mvc:message-converters >   </ mvc:annotation-driven >   <!-- 视图解析器 -->   < bean  class = "org.springframework.web.servlet.view.InternalResourceViewResolver"    p:prefix = "/WEB-INF/"  p:suffix = ".jsp" ></ bean > </ beans >

web.xml

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<? xml  version = "1.0"  encoding = "UTF-8" ?> < web-app  version = "2.5"    xmlns=" http://java.sun.com/xml/ns/javaee "    xmlns:xsi=" http://www.w3.org/2001/XMLSchema-instance "    xsi:schemaLocation=" http://java.sun.com/xml/ns/javaee http://java.sun.com/xml/ns/javaee/web-app_2_5.xsd ">    < welcome-file-list >      < welcome-file >index.jsp</ welcome-file >    </ welcome-file-list >    <!-- spring mvc -->    < servlet >     < servlet-name >springmvc</ servlet-name >     < servlet-class >org.springframework.web.servlet.DispatcherServlet</ servlet-class >     < init-param >      < param-name >contextConfigLocation</ param-name >      < param-value >classpath:config/spring.xml</ param-value >     </ init-param >     < load-on-startup >1</ load-on-startup >    </ servlet >    < servlet-mapping >     < servlet-name >springmvc</ servlet-name >     < url-pattern >*.do</ url-pattern >    </ servlet-mapping > </ web-app >

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package  org.base.controller; import  org.base.pojo.Department; import  org.springframework.stereotype.Controller; import  org.springframework.web.bind.annotation.RequestMapping; import  org.springframework.web.bind.annotation.RequestParam; @Controller public  class  DeptController {   /**    * 映射的url http://localhost:端口号/项目名/test.do    * 跳转到 (prefix)test.jsp(suffix)页面    */   @RequestMapping ( "/test" )   public  String test(){    System.out.println( "test" );    return  "test" ;   }   /**    * 如果方法无返回值，则跳转到 testP.jsp页面，即映射名    * 对于方法中的参数，可以对应url中的参数自动赋值    * 这里注意，如果url中的参数和方法定义的不一致，例如，此处的age=1.5，那么会报400错误    */   @RequestMapping ( "/testP" )   public  void  testParam(String name,Integer age){    System.out.println( "name:" +name+ ",age:" +age);   }      /**    * 也可以显式声明url参数    */   @RequestMapping ( "/testP1" )   public  void  testParam1( @RequestParam ( "name" )String name,Integer age){    System.out.println( "name:" +name+ ",age:" +age);   }      /**    * 自动注入bean属性，注意，url中形式是 departmentId=12,不是  对象.属性  形式    */   @RequestMapping ( "/testP2" )   public  void  testParam2(Department dept){    System.out.println( "dept:" +dept);   } /**    * ResponseBody注解：此方法返回值直接写入 response的body中，默认是json    * 注意要导入  jackson.jar    */   @RequestMapping ( "/test2" )   @ResponseBody   public  Department test2(){    Department dept =  new  Department( 12 ,  "abc" ,  31 ,  5 );    return  dept;   }    //@RequestMapping 注解的方法支持很多参数： HttpServletRequest/Response,HttpSession,Writer   // 不支持对象.属性传值方法，如果重名，/**    * restful 风格的传参方式    */   @RequestMapping ( "/test3/{str}" )     public  void  test3( @PathVariable ( "str" )String str){      System.out.println( "str:" +str);     }          /**      * date 日期类型的注入      */     @RequestMapping ( "/test4" )     public  void  test4( @DateTimeFormat (iso=ISO.DATE)Date d){      if (d!= null )       System.out.println(        new  SimpleDateFormat( "yyyy-MM-dd HH:mm:ss" ).format(d));     }  }

@ResponseBody 可以将该方法返回的值 写入到 response的body中去(String,json,xml)。

@RequestMapping 也可以用于整个类

?

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@Controller @RequestMapping ( "/emp/*" ) public  class  EmpController {     @RequestMapping ( "test1" )  // 这里匹配的url就是/emp/test1.do   public  void  test1(String s){      System.out.println( "s:" +s);   } }

spring 配置文件

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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:tx=" http://www.springframework.org/schema/tx "     xmlns:aop=" http://www.springframework.org/schema/aop "    xmlns:context=" http://www.springframework.org/schema/context "     xmlns:jee=" http://www.springframework.org/schema/jee "    xmlns:mvc=" http://www.springframework.org/schema/mvc "    xmlns:p=" http://www.springframework.org/schema/p "     xsi:schemaLocation=" http://www.springframework.org/schema/tx http://www.springframework.org/schema/tx/spring-tx-2.5.xsd http://www.springframework.org/schema/aop http://www.springframework.org/schema/aop/spring-aop-2.5.xsd http://www.springframework.org/schema/beans http://www.springframework.org/schema/beans/spring-beans-2.5.xsd   http://www.springframework.org/schema/context http://www.springframework.org/schema/context/spring-context-2.5.xsd  http://www.springframework.org/schema/jee http://www.springframework.org/schema/jee/spring-jee-2.5.xsd http://www.springframework.org/schema/mvc     http://www.springframework.org/schema/mvc/spring-mvc.xsd ">   <!-- 加载配置文件 -->   < context:property-placeholder  location = "classpath:config/jdbc.properties"  />   < context:component-scan  base-package = "org.base"  />   <!-- 开启基于注解的mvc配置 -->   < mvc:annotation-driven >    < mvc:message-converters >     < bean  class = "org.springframework.http.converter.json.MappingJacksonHttpMessageConverter" >      <!-- 解决"IE下返回json提示下载"问题 -->      < property  name = "supportedMediaTypes"  value = "text/plain;charset=UTF-8" ></ property >     </ bean >    </ mvc:message-converters >   </ mvc:annotation-driven >   <!-- 视图解析器 -->   < bean  class = "org.springframework.web.servlet.view.InternalResourceViewResolver"    p:prefix = "/WEB-INF/"  p:suffix = ".jsp" ></ bean > </ beans >

web.xml

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<? xml  version = "1.0"  encoding = "UTF-8" ?> < web-app  version = "2.5"    xmlns=" http://java.sun.com/xml/ns/javaee "    xmlns:xsi=" http://www.w3.org/2001/XMLSchema-instance "    xsi:schemaLocation=" http://java.sun.com/xml/ns/javaee http://java.sun.com/xml/ns/javaee/web-app_2_5.xsd ">    < welcome-file-list >      < welcome-file >index.jsp</ welcome-file >    </ welcome-file-list >    <!-- spring mvc -->    < servlet >     < servlet-name >springmvc</ servlet-name >     < servlet-class >org.springframework.web.servlet.DispatcherServlet</ servlet-class >     < init-param >      < param-name >contextConfigLocation</ param-name >      < param-value >classpath:config/spring.xml</ param-value >     </ init-param >     < load-on-startup >1</ load-on-startup >    </ servlet >    < servlet-mapping >     < servlet-name >springmvc</ servlet-name >     < url-pattern >*.do</ url-pattern >    </ servlet-mapping > </ web-app >