{"id":69,"date":"2024-02-03T01:13:30","date_gmt":"2024-02-02T17:13:30","guid":{"rendered":"https:\/\/ishht.com\/?p=69"},"modified":"2024-02-03T01:13:30","modified_gmt":"2024-02-02T17:13:30","slug":"springmvc%e6%a1%86%e6%9e%b6%e4%bb%8b%e7%bb%8d","status":"publish","type":"post","link":"https:\/\/ishht.com\/?p=69","title":{"rendered":"SpringMVC\u6846\u67b6\u4ecb\u7ecd"},"content":{"rendered":"

\u8fd9\u91cc\u5bf9SpringMVC\u6846\u67b6\u8fdb\u884c\u4e00\u4e2a\u7b80\u5355\u7684\u4ecb\u7ecd\uff1a<\/p>\n

springmvc\u662fspring\u6846\u67b6\u7684\u4e00\u4e2a\u6a21\u5757\uff0cspringmvc\u548cspring\u65e0\u9700\u901a\u8fc7\u4e2d\u95f4\u6574\u5408\u5c42\u8fdb\u884c\u6574\u5408\u3002
\nspringmvc\u662f\u4e00\u4e2a\u57fa\u4e8emvc\u7684web\u6846\u67b6\u3002
\nspringmvc \u8868\u73b0\u5c42\uff1a\u65b9\u4fbf\u524d\u540e\u7aef\u6570\u636e\u7684\u4f20\u8f93
\nSpring MVC \u62e5\u6709\u63a7\u5236\u5668\uff0c\u4f5c\u7528\u8ddfStruts\u7c7b\u4f3c\uff0c\u63a5\u6536\u5916\u90e8\u8bf7\u6c42\uff0c\u89e3\u6790\u53c2\u6570\u4f20\u7ed9\u670d\u52a1\u5c42
\nMVC\u662f\u6307\uff0cC\u63a7\u5236\u5c42\uff0cM\u6a21\u5757\u5c42\uff0cV\u663e\u793a\u5c42\u8fd9\u6837\u7684\u8bbe\u8ba1\u7406\u5ff5\uff0c\u800cSSM\u6846\u67b6\u91cc\u9762SPRING MVC\u672c\u8eab\u5c31\u662fMVC\u6846\u67b6\uff0c\u4f5c\u7528\u662f\u5e2e\u52a9\uff08\u67d0\u79cd\u610f\u4e49\u4e0a\u4e5f\u53ef\u4ee5 \u7406\u89e3\u4e3a\u7ea6\u675f\uff09\u6211\u4eec\u8981\u6309\u7167MVC\u8fd9\u6837\u7684\u8bbe\u8ba1\u6765\u5f00\u53d1WEB\u9879\u76ee\uff0c\u800c\u53e6\u5916\u4e24\u4e2a\u6846\u67b6spring\u4e3b\u8981\u662f\u7528\u4f5cIOC,AOP\u7b49\u5176\u4ed6\u7684\u4e00\u4e9b\u8bbe\u8ba1\u539f\u5219\uff0c\u81f3\u4e8emybatis\u662f\u7528\u6765\u65b9\u4fbf\u64cd\u4f5c\u6570\u636e\u5e93\u7684\uff0c\u6240\u4ee5\u4ed6\u4eec\u90fd\u5728MV\u91cc\u9762\uff0c\u81f3\u4e8eV\u6307\u7684\u662f\u5c55\u793a\u90e8\u5206\uff0c\u4e00\u822c\u662f\u6307JSP\uff0cfreemarks\u8fd9\u79cd\u524d\u63d0\u5176\u5b9e\uff0c\u548cSSM\u5c31\u6ca1\u6709\u592a\u5927\u7684\u5173\u7cfb\u4e86
\nSpringMVC\u67b6\u6784\uff08MVC\u8bbe\u8ba1\u6a21\u5f0f\u5728BS\u7cfb\u7edf\u4e0b\u7684\u5e94\u7528\uff09
\n\u2014\u2014\u2014\u2014\u2014\u2014\u2014\u2014\u2014\u2014\u2014\u2014\u2014\u2014\u2014\u2014<\/p>\n

\"\"<\/p>\n

springmvc\u9879\u76ee\u67b6\u6784\u56fe<\/h3>\n

\"\"<\/p>\n

 <\/p>\n

Springmvc\u67b6\u6784\u539f\u7406\u89e3\u6790
\n\u53d1\u8d77\u8bf7\u6c42\u5230\u524d\u7aef\u63a7\u5236\u5668(DispatcherServlet)
\n\u524d\u7aef\u63a7\u5236\u5668\u8bf7\u6c42HandlerMapping\u67e5\u627e Handler\uff0c\u53ef\u4ee5\u6839\u636exml\u914d\u7f6e\u3001\u6ce8\u89e3\u8fdb\u884c\u67e5\u627e
\n\u5904\u7406\u5668\u6620\u5c04\u5668HandlerMapping\u5411\u524d\u7aef\u63a7\u5236\u5668\u8fd4\u56deHandler
\n\u524d\u7aef\u63a7\u5236\u5668\u8c03\u7528\u5904\u7406\u5668\u9002\u914d\u5668\u53bb\u6267\u884cHandler
\n\u5904\u7406\u5668\u9002\u914d\u5668\u53bb\u6267\u884cHandler
\nHandler\u6267\u884c\u5b8c\u6210\u7ed9\u9002\u914d\u5668\u8fd4\u56deModelAndView
\n\u5904\u7406\u5668\u9002\u914d\u5668\u5411\u524d\u7aef\u63a7\u5236\u5668\u8fd4\u56deModelAndView\uff0cModelAndView\u662fspringmvc\u6846\u67b6\u7684\u4e00\u4e2a\u5e95\u5c42\u5bf9\u8c61\uff0c\u5305\u62ec Model\u548cview
\n\u524d\u7aef\u63a7\u5236\u5668\u8bf7\u6c42\u89c6\u56fe\u89e3\u6790\u5668\u53bb\u8fdb\u884c\u89c6\u56fe\u89e3\u6790\uff0c\u6839\u636e\u903b\u8f91\u89c6\u56fe\u540d\u89e3\u6790\u6210\u771f\u6b63\u7684\u89c6\u56fe(jsp)
\n\u89c6\u56fe\u89e3\u6790\u5668\u5411\u524d\u7aef\u63a7\u5236\u5668\u8fd4\u56deView
\n\u524d\u7aef\u63a7\u5236\u5668\u8fdb\u884c\u89c6\u56fe\u6e32\u67d3\uff0c\u89c6\u56fe\u6e32\u67d3\u5c06\u6a21\u578b\u6570\u636e(\u5728ModelAndView\u5bf9\u8c61\u4e2d)\u586b\u5145\u5230request\u57df
\n\u524d\u7aef\u63a7\u5236\u5668\u5411\u7528\u6237\u54cd\u5e94\u7ed3\u679c<\/p>\n

\u7ec4\u4ef6\uff1a
\n1\u3001\u524d\u7aef\u63a7\u5236\u5668DispatcherServlet\uff08\u4e0d\u9700\u8981\u7a0b\u5e8f\u5458\u5f00\u53d1\uff09
\n\u4f5c\u7528\u63a5\u6536\u8bf7\u6c42\uff0c\u54cd\u5e94\u7ed3\u679c\uff0c\u76f8\u5f53\u4e8e\u8f6c\u53d1\u5668\uff0c\u4e2d\u592e\u5904\u7406\u5668\u3002
\n\u6709\u4e86DispatcherServlet\u51cf\u5c11\u4e86\u5176\u5b83\u7ec4\u4ef6\u4e4b\u95f4\u7684\u8026\u5408\u5ea6\u3002<\/p>\n

2\u3001\u5904\u7406\u5668\u6620\u5c04\u5668HandlerMapping(\u4e0d\u9700\u8981\u7a0b\u5e8f\u5458\u5f00\u53d1)
\n\u4f5c\u7528\uff1a\u6839\u636e\u8bf7\u6c42\u7684url\u67e5\u627eHandler<\/p>\n

3\u3001\u5904\u7406\u5668\u9002\u914d\u5668HandlerAdapter
\n\u4f5c\u7528\uff1a\u6309\u7167\u7279\u5b9a\u89c4\u5219\uff08HandlerAdapter\u8981\u6c42\u7684\u89c4\u5219\uff09\u53bb\u6267\u884cHandler<\/p>\n

4\u3001\u5904\u7406\u5668Handler(\u9700\u8981\u7a0b\u5e8f\u5458\u5f00\u53d1)
\n\u6ce8\u610f\uff1a\u7f16\u5199Handler\u65f6\u6309\u7167HandlerAdapter\u7684\u8981\u6c42\u53bb\u505a\uff0c\u8fd9\u6837\u9002\u914d\u5668\u624d\u53ef\u4ee5\u53bb\u6b63\u786e\u6267\u884cHandler<\/p>\n

5\u3001\u89c6\u56fe\u89e3\u6790\u5668View resolver(\u4e0d\u9700\u8981\u7a0b\u5e8f\u5458\u5f00\u53d1)
\n\u4f5c\u7528\uff1a\u8fdb\u884c\u89c6\u56fe\u89e3\u6790\uff0c\u6839\u636e\u903b\u8f91\u89c6\u56fe\u540d\u89e3\u6790\u6210\u771f\u6b63\u7684\u89c6\u56fe\uff08view\uff09<\/p>\n

6\u3001\u89c6\u56feView(\u9700\u8981\u7a0b\u5e8f\u5458\u5f00\u53d1jsp)
\nView\u662f\u4e00\u4e2a\u63a5\u53e3\uff0c\u5b9e\u73b0\u7c7b\u652f\u6301\u4e0d\u540c\u7684View\u7c7b\u578b\uff08jsp\u3001freemarker\u3001pdf\u2026\uff09<\/p>\n

SpringMVC\u5b66\u4e60\u7b14\u8bb0
\n\u4e00\u3001SpringMVC\u57fa\u7840\u5165\u95e8\uff0c\u521b\u5efa\u4e00\u4e2aHelloWorld\u7a0b\u5e8f
\n\u9996\u5148\uff0c\u5bfc\u5165SpringMVC\u9700\u8981\u7684jar\u5305\u3002<\/p>\n

\u6dfb\u52a0Web.xml\u914d\u7f6e\u6587\u4ef6\u4e2d\u5173\u4e8eSpringMVC\u7684\u914d\u7f6e
\n\u2014\u2014\u2014\u2014\u2014\u2014\u2014\u2014\u2014\u2014\u2014\u2014\u2014\u2014\u2014\u2014<\/p>\n

<!--configure the setting of springmvcDispatcherServlet and configure the mapping-->\r\n  <servlet>\r\n      <servlet-name>springmvc<\/servlet-name>\r\n      <servlet-class>org.springframework.web.servlet.DispatcherServlet<\/servlet-class>\r\n      <init-param>\r\n            <param-name>contextConfigLocation<\/param-name>\r\n            <param-value>classpath:springmvc-servlet.xml<\/param-value>\r\n        <\/init-param>\r\n        <!-- <load-on-startup>1<\/load-on-startup> -->\r\n  <\/servlet>\r\n\r\n  <servlet-mapping>\r\n      <servlet-name>springmvc<\/servlet-name>\r\n      <url-pattern>\/<\/url-pattern>\r\n  <\/servlet-mapping>\r\n<\/code><\/pre>\n
    \n
  1. \u5728src\u4e0b\u6dfb\u52a0springmvc-servlet.xml\u914d\u7f6e\u6587\u4ef6<\/li>\n<\/ol>\n
    <?xml version=\"1.0\" encoding=\"UTF-8\"?>\r\n<beans xmlns=\"http:\/\/www.springframework.org\/schema\/beans\"\r\n    xmlns:xsi=\"http:\/\/www.w3.org\/2001\/XMLSchema-instance\"\r\n    xmlns:context=\"http:\/\/www.springframework.org\/schema\/context\"\r\n    xmlns:mvc=\"http:\/\/www.springframework.org\/schema\/mvc\"\r\n    xsi:schemaLocation=\"http:\/\/www.springframework.org\/schema\/beans http:\/\/www.springframework.org\/schema\/beans\/spring-beans.xsd\r\n        http:\/\/www.springframework.org\/schema\/context http:\/\/www.springframework.org\/schema\/context\/spring-context-4.1.xsd\r\n        http:\/\/www.springframework.org\/schema\/mvc http:\/\/www.springframework.org\/schema\/mvc\/spring-mvc-4.1.xsd\">                    \r\n\r\n    <!-- scan the package and the sub package -->\r\n    <context:component-scan base-package=\"test.SpringMVC\"\/>\r\n\r\n    <!-- don't handle the static resource -->\r\n    <mvc:default-servlet-handler \/>\r\n\r\n    <!-- if you use annotation you must configure following setting -->\r\n    <mvc:annotation-driven \/>\r\n    \r\n    <!-- configure the InternalResourceViewResolver -->\r\n    <bean class=\"org.springframework.web.servlet.view.InternalResourceViewResolver\" \r\n            id=\"internalResourceViewResolver\">\r\n        <!-- \u524d\u7f00 -->\r\n        <property name=\"prefix\" value=\"\/WEB-INF\/jsp\/\" \/>\r\n        <!-- \u540e\u7f00 -->\r\n        <property name=\"suffix\" value=\".jsp\" \/>\r\n    <\/bean>\r\n<\/beans>\r\n<\/code><\/pre>\n
      \n
    1. \u5728WEB-INF\u6587\u4ef6\u5939\u4e0b\u521b\u5efa\u540d\u4e3ajsp\u7684\u6587\u4ef6\u5939\uff0c\u7528\u6765\u5b58\u653ejsp\u89c6\u56fe\u3002\u521b\u5efa\u4e00\u4e2ahello.jsp\uff0c\u5728body\u4e2d\u6dfb\u52a0\u201cHello World\u201d\u3002<\/li>\n
    2. \u5efa\u7acb\u5305\u53caController\uff0c\u5982\u4e0b\u6240\u793a<\/li>\n
    3. \u7f16\u5199Controller\u4ee3\u7801<\/li>\n<\/ol>\n
       <\/p>\n
      @Controller\r\n@RequestMapping(\"\/mvc\")\r\npublic class mvcController {\r\n\r\n    @RequestMapping(\"\/hello\")\r\n    public String hello(){        \r\n        return \"hello\";\r\n    }\r\n}\r\n<\/code><\/pre>\n
      \u542f\u52a8\u670d\u52a1\u5668\uff0c\u952e\u5165 http:\/\/localhost:8080\/\u9879\u76ee\u540d\/mvc\/hello<\/p>\n
      \u4e8c\u3001\u914d\u7f6e\u89e3\u6790
      \nDispatcherservlet
      \nDispatcherServlet\u662f\u524d\u7f6e\u63a7\u5236\u5668\uff0c\u914d\u7f6e\u5728web.xml\u6587\u4ef6\u4e2d\u7684\u3002\u62e6\u622a\u5339\u914d\u7684\u8bf7\u6c42\uff0cServlet\u62e6\u622a\u5339\u914d\u89c4\u5219\u8981\u81ea\u5df2\u5b9a\u4e49\uff0c\u628a\u62e6\u622a\u4e0b\u6765\u7684\u8bf7\u6c42\uff0c\u4f9d\u636e\u76f8\u5e94\u7684\u89c4\u5219\u5206\u53d1\u5230\u76ee\u6807Controller\u6765\u5904\u7406\uff0c\u662f\u914d\u7f6espring MVC\u7684\u7b2c\u4e00\u6b65\u3002<\/p>\n
      InternalResourceViewResolver
      \n\u89c6\u56fe\u540d\u79f0\u89e3\u6790\u5668<\/p>\n
      \u4ee5\u4e0a\u51fa\u73b0\u7684\u6ce8\u89e3
      \n@Controller \u8d1f\u8d23\u6ce8\u518c\u4e00\u4e2abean \u5230spring \u4e0a\u4e0b\u6587\u4e2d
      \n@RequestMapping \u6ce8\u89e3\u4e3a\u63a7\u5236\u5668\u6307\u5b9a\u53ef\u4ee5\u5904\u7406\u54ea\u4e9b URL \u8bf7\u6c42<\/p>\n
      \u4e09\u3001SpringMVC\u5e38\u7528\u6ce8\u89e3
      \n@Controller
      \n\u8d1f\u8d23\u6ce8\u518c\u4e00\u4e2abean \u5230spring \u4e0a\u4e0b\u6587\u4e2d<\/p>\n
      @RequestMapping
      \n\u6ce8\u89e3\u4e3a\u63a7\u5236\u5668\u6307\u5b9a\u53ef\u4ee5\u5904\u7406\u54ea\u4e9b URL \u8bf7\u6c42<\/p>\n
      @RequestBody
      \n\u8be5\u6ce8\u89e3\u7528\u4e8e\u8bfb\u53d6Request\u8bf7\u6c42\u7684body\u90e8\u5206\u6570\u636e\uff0c\u4f7f\u7528\u7cfb\u7edf\u9ed8\u8ba4\u914d\u7f6e\u7684HttpMessageConverter\u8fdb\u884c\u89e3\u6790\uff0c\u7136\u540e\u628a\u76f8\u5e94\u7684\u6570\u636e\u7ed1\u5b9a\u5230\u8981\u8fd4\u56de\u7684\u5bf9\u8c61\u4e0a ,\u518d\u628aHttpMessageConverter\u8fd4\u56de\u7684\u5bf9\u8c61\u6570\u636e\u7ed1\u5b9a\u5230 controller\u4e2d\u65b9\u6cd5\u7684\u53c2\u6570\u4e0a<\/p>\n
      @ResponseBody
      \n\u8be5\u6ce8\u89e3\u7528\u4e8e\u5c06Controller\u7684\u65b9\u6cd5\u8fd4\u56de\u7684\u5bf9\u8c61\uff0c\u901a\u8fc7\u9002\u5f53\u7684HttpMessageConverter\u8f6c\u6362\u4e3a\u6307\u5b9a\u683c\u5f0f\u540e\uff0c\u5199\u5165\u5230Response\u5bf9\u8c61\u7684body\u6570\u636e\u533a<\/p>\n
      @ModelAttribute
      \n\u5728\u65b9\u6cd5\u5b9a\u4e49\u4e0a\u4f7f\u7528 @ModelAttribute \u6ce8\u89e3\uff1aSpring MVC \u5728\u8c03\u7528\u76ee\u6807\u5904\u7406\u65b9\u6cd5\u524d\uff0c\u4f1a\u5148\u9010\u4e2a\u8c03\u7528\u5728\u65b9\u6cd5\u7ea7\u4e0a\u6807\u6ce8\u4e86@ModelAttribute \u7684\u65b9\u6cd5<\/p>\n
      \u5728\u65b9\u6cd5\u7684\u5165\u53c2\u524d\u4f7f\u7528 @ModelAttribute \u6ce8\u89e3\uff1a\u53ef\u4ee5\u4ece\u9690\u542b\u5bf9\u8c61\u4e2d\u83b7\u53d6\u9690\u542b\u7684\u6a21\u578b\u6570\u636e\u4e2d\u83b7\u53d6\u5bf9\u8c61\uff0c\u518d\u5c06\u8bf7\u6c42\u53c2\u6570 \u2013\u7ed1\u5b9a\u5230\u5bf9\u8c61\u4e2d\uff0c\u518d\u4f20\u5165\u5165\u53c2\u5c06\u65b9\u6cd5\u5165\u53c2\u5bf9\u8c61\u6dfb\u52a0\u5230\u6a21\u578b\u4e2d<\/p>\n
      @RequestParam
      \n\u5728\u5904\u7406\u65b9\u6cd5\u5165\u53c2\u5904\u4f7f\u7528 @RequestParam \u53ef\u4ee5\u628a\u8bf7\u6c42\u53c2 \u6570\u4f20\u9012\u7ed9\u8bf7\u6c42\u65b9\u6cd5<\/p>\n
      @PathVariable
      \n\u7ed1\u5b9a URL \u5360\u4f4d\u7b26\u5230\u5165\u53c2<\/p>\n
      @ExceptionHandler
      \n\u6ce8\u89e3\u5230\u65b9\u6cd5\u4e0a\uff0c\u51fa\u73b0\u5f02\u5e38\u65f6\u4f1a\u6267\u884c\u8be5\u65b9\u6cd5<\/p>\n
      @ControllerAdvice
      \n\u4f7f\u4e00\u4e2aContoller\u6210\u4e3a\u5168\u5c40\u7684\u5f02\u5e38\u5904\u7406\u7c7b\uff0c\u7c7b\u4e2d\u7528@ExceptionHandler\u65b9\u6cd5\u6ce8\u89e3\u7684\u65b9\u6cd5\u53ef\u4ee5\u5904\u7406\u6240\u6709Controller\u53d1\u751f\u7684\u5f02\u5e38<\/p>\n
      \u56db\u3001\u81ea\u52a8\u5339\u914d\u53c2\u6570
      \n\u2014\u2014\u2014\u2014\u2014\u2014\u2014\u2014\u2014\u2014\u2014\u2014\u2014\u2014\u2014\u2014<\/p>\n
      \/\/match automatically\r\n@RequestMapping(\"\/person\")\r\npublic String toPerson(String name,double age){\r\n    System.out.println(name+\" \"+age);\r\n    return \"hello\";\r\n}\r\n<\/code><\/pre>\n
      \u4e94\u3001\u81ea\u52a8\u88c5\u7bb1<\/h4>\n
        \n
      1. \u7f16\u5199\u4e00\u4e2aPerson\u5b9e\u4f53\u7c7b<\/li>\n<\/ol>\n
        package test.SpringMVC.model;\r\n\r\npublic class Person {\r\n    public String getName() {\r\n        return name;\r\n    }\r\n    public void setName(String name) {\r\n        this.name = name;\r\n    }\r\n    public int getAge() {\r\n        return age;\r\n    }\r\n    public void setAge(int age) {\r\n        this.age = age;\r\n    }\r\n    private String name;\r\n    private int age;\r\n    \r\n}\r\n<\/code><\/pre>\n
          \n
        1. \u5728Controller\u91cc\u7f16\u5199\u65b9\u6cd5<\/li>\n<\/ol>\n
          \/\/boxing automatically\r\n@RequestMapping(\"\/person1\")\r\npublic String toPerson(Person p){\r\n    System.out.println(p.getName()+\" \"+p.getAge());\r\n    return \"hello\";\r\n}\r\n<\/code><\/pre>\n
          \u4e03\u3001\u5411\u524d\u53f0\u4f20\u9012\u53c2\u6570<\/h4>\n
            \/\/pass the parameters to front-end\r\n    @RequestMapping(\"\/show\")\r\n    public String showPerson(Map<String,Object> map){\r\n        Person p =new Person();\r\n        map.put(\"p\", p);\r\n        p.setAge(20);\r\n        p.setName(\"jayjay\");\r\n        return \"show\";\r\n    }\r\n<\/code><\/pre>\n
          \u524d\u53f0\u53ef\u5728Request\u57df\u4e2d\u53d6\u5230”p”<\/p>\n
          \u516b\u3001\u4f7f\u7528Ajax\u8c03\u7528<\/p>\n
          \/\/pass the parameters to front-end using ajax\r\n@RequestMapping(\"\/getPerson\")\r\npublic void getPerson(String name,PrintWriter pw){\r\n    pw.write(\"hello,\"+name);        \r\n}\r\n@RequestMapping(\"\/name\")\r\npublic String sayHello(){\r\n    return \"name\";\r\n}\r\n<\/code><\/pre>\n
          \u524d\u53f0\u7528\u4e0b\u9762\u7684Jquery\u4ee3\u7801\u8c03\u7528<\/span><\/p>\n
            $(function(){\r\n      $(\"#btn\").click(function(){\r\n          $.post(\"mvc\/getPerson\",{name:$(\"#name\").val()},function(data){\r\n              alert(data);\r\n          });\r\n      });\r\n  });\r\n<\/code><\/pre>\n
          \u4e5d\u3001\u5728Controller\u4e2d\u4f7f\u7528redirect\u65b9\u5f0f\u5904\u7406\u8bf7\u6c42<\/h4>\n
          \/\/redirect \r\n@RequestMapping(\"\/redirect\")\r\npublic String redirect(){\r\n    return \"redirect:hello\";\r\n}\r\n<\/code><\/pre>\n
          \u5341\u3001\u6587\u4ef6\u4e0a\u4f20<\/h4>\n
            \n
          1. \u9700\u8981\u5bfc\u5165\u4e24\u4e2ajar\u5305<\/li>\n
          2. \u5728SpringMVC\u914d\u7f6e\u6587\u4ef6\u4e2d\u52a0\u5165<\/li>\n<\/ol>\n
            <!-- upload settings -->\r\n<bean id=\"multipartResolver\"  class=\"org.springframework.web.multipart.commons.CommonsMultipartResolver\">\r\n    <property name=\"maxUploadSize\" value=\"102400000\"><\/property>\r\n<\/bean>\r\n<\/code><\/pre>\n
              \n
            1. \u65b9\u6cd5\u4ee3\u7801<\/li>\n<\/ol>\n
              @RequestMapping(value=\"\/upload\",method=RequestMethod.POST)\r\npublic String upload(HttpServletRequest req) throws Exception{\r\n    MultipartHttpServletRequest mreq = (MultipartHttpServletRequest)req;\r\n    MultipartFile file = mreq.getFile(\"file\");\r\n    String fileName = file.getOriginalFilename();\r\n    SimpleDateFormat sdf = new SimpleDateFormat(\"yyyyMMddHHmmss\");        \r\n    FileOutputStream fos = new FileOutputStream(req.getSession().getServletContext().getRealPath(\"\/\")+\r\n            \"upload\/\"+sdf.format(new Date())+fileName.substring(fileName.lastIndexOf('.')));\r\n    fos.write(file.getBytes());\r\n    fos.flush();\r\n    fos.close();\r\n    \r\n    return \"hello\";\r\n}\r\n<\/code><\/pre>\n
                \n
              1. \u524d\u53f0form\u8868\u5355<\/li>\n<\/ol>\n
                  <form action=\"mvc\/upload\" method=\"post\" enctype=\"multipart\/form-data\">\r\n      <input type=\"file\" name=\"file\"><br>\r\n      <input type=\"submit\" value=\"submit\">\r\n  <\/form>\r\n<\/code><\/pre>\n
                \u5341\u4e00\u3001\u4f7f\u7528@RequestParam\u6ce8\u89e3\u6307\u5b9a\u53c2\u6570\u7684name<\/h4>\n
                @Controller\r\n@RequestMapping(\"\/test\")\r\npublic class mvcController1 {\r\n    @RequestMapping(value=\"\/param\")\r\n    public String testRequestParam(@RequestParam(value=\"id\") Integer id,\r\n            @RequestParam(value=\"name\")String name){\r\n        System.out.println(id+\" \"+name);\r\n        return \"\/hello\";\r\n    }    \r\n}\r\n<\/code><\/pre>\n
                <\/h4>\n
                \u5341\u4e8c\u3001RESTFul\u98ce\u683c\u7684SringMVC<\/h4>\n
                  \n
                1. RestController<\/li>\n<\/ol>\n
                  @Controller\r\n@RequestMapping(\"\/rest\")\r\npublic class RestController {\r\n    @RequestMapping(value=\"\/user\/{id}\",method=RequestMethod.GET)\r\n    public String get(@PathVariable(\"id\") Integer id){\r\n        System.out.println(\"get\"+id);\r\n        return \"\/hello\";\r\n    }\r\n    \r\n    @RequestMapping(value=\"\/user\/{id}\",method=RequestMethod.POST)\r\n    public String post(@PathVariable(\"id\") Integer id){\r\n        System.out.println(\"post\"+id);\r\n        return \"\/hello\";\r\n    }\r\n    \r\n    @RequestMapping(value=\"\/user\/{id}\",method=RequestMethod.PUT)\r\n    public String put(@PathVariable(\"id\") Integer id){\r\n        System.out.println(\"put\"+id);\r\n        return \"\/hello\";\r\n    }\r\n    \r\n    @RequestMapping(value=\"\/user\/{id}\",method=RequestMethod.DELETE)\r\n    public String delete(@PathVariable(\"id\") Integer id){\r\n        System.out.println(\"delete\"+id);\r\n        return \"\/hello\";\r\n    }\r\n    \r\n}\r\n<\/code><\/pre>\n
                    \n
                  1. form\u8868\u5355\u53d1\u9001put\u548cdelete\u8bf7\u6c42\n
                    \u5728web.xml\u4e2d\u914d\u7f6e<\/li>\n<\/ol>\n
                      <!-- configure the HiddenHttpMethodFilter,convert the post method to put or delete -->\r\n  <filter>\r\n      <filter-name>HiddenHttpMethodFilter<\/filter-name>\r\n      <filter-class>org.springframework.web.filter.HiddenHttpMethodFilter<\/filter-class>\r\n  <\/filter>\r\n  <filter-mapping>\r\n      <filter-name>HiddenHttpMethodFilter<\/filter-name>\r\n      <url-pattern>\/*<\/url-pattern>\r\n  <\/filter-mapping>\r\n<\/code><\/pre>\n
                    \u5728\u524d\u53f0\u53ef\u4ee5\u7528\u4ee5\u4e0b\u4ee3\u7801\u4ea7\u751f\u8bf7\u6c42<\/span><\/p>\n
                     <\/p>\n
                    <form action=\"rest\/user\/1\" method=\"post\">\r\n    <input type=\"hidden\" name=\"_method\" value=\"PUT\">\r\n    <input type=\"submit\" value=\"put\">\r\n<\/form>\r\n\r\n<form action=\"rest\/user\/1\" method=\"post\">\r\n    <input type=\"submit\" value=\"post\">\r\n<\/form>\r\n\r\n<form action=\"rest\/user\/1\" method=\"get\">\r\n    <input type=\"submit\" value=\"get\">\r\n<\/form>\r\n\r\n<form action=\"rest\/user\/1\" method=\"post\">\r\n    <input type=\"hidden\" name=\"_method\" value=\"DELETE\">\r\n    <input type=\"submit\" value=\"delete\">\r\n<\/form>\r\n<\/code><\/pre>\n
                    \u5341\u4e09\u3001\u8fd4\u56dejson\u683c\u5f0f\u7684\u5b57\u7b26\u4e32<\/h4>\n
                      \n
                    1. \u5bfc\u5165\u4ee5\u4e0bjar\u5305<\/li>\n
                    2. \u65b9\u6cd5\u4ee3\u7801<\/li>\n<\/ol>\n
                      @Controller\r\n@RequestMapping(\"\/json\")\r\npublic class jsonController {\r\n    \r\n    @ResponseBody\r\n    @RequestMapping(\"\/user\")\r\n    public  User get(){\r\n        User u = new User();\r\n        u.setId(1);\r\n        u.setName(\"jayjay\");\r\n        u.setBirth(new Date());\r\n        return u;\r\n    }\r\n}\r\n<\/code><\/pre>\n
                       <\/p>\n
                      \u5341\u56db\u3001\u5f02\u5e38\u7684\u5904\u7406<\/h4>\n
                        \n
                      1. \u5904\u7406\u5c40\u90e8\u5f02\u5e38\uff08Controller\u5185\uff09\n
                        @ExceptionHandler\r\npublic ModelAndView exceptionHandler(Exception ex){\r\n    ModelAndView mv = new ModelAndView(\"error\");\r\n    mv.addObject(\"exception\", ex);\r\n    System.out.println(\"in testExceptionHandler\");\r\n    return mv;\r\n}\r\n\r\n@RequestMapping(\"\/error\")\r\npublic String error(){\r\n    int i = 5\/0;\r\n    return \"hello\";\r\n}\r\n<\/code><\/pre>\n<\/li>\n<\/ol>\n
                          \n
                        1. \u5904\u7406\u5168\u5c40\u5f02\u5e38\uff08\u6240\u6709Controller\uff09<\/li>\n<\/ol>\n
                          @ControllerAdvice\r\npublic class testControllerAdvice {\r\n    @ExceptionHandler\r\n    public ModelAndView exceptionHandler(Exception ex){\r\n        ModelAndView mv = new ModelAndView(\"error\");\r\n        mv.addObject(\"exception\", ex);\r\n        System.out.println(\"in testControllerAdvice\");\r\n        return mv;\r\n    }\r\n}\r\n<\/code><\/pre>\n
                            \n
                          1. \u53e6\u4e00\u79cd\u5904\u7406\u5168\u5c40\u5f02\u5e38\u7684\u65b9\u6cd5\n
                            \u5728SpringMVC\u914d\u7f6e\u6587\u4ef6\u4e2d\u914d\u7f6e<\/li>\n<\/ol>\n
                            <!-- configure SimpleMappingExceptionResolver -->\r\n<bean class=\"org.springframework.web.servlet.handler.SimpleMappingExceptionResolver\">\r\n    <property name=\"exceptionMappings\">\r\n        <props>\r\n            <prop key=\"java.lang.ArithmeticException\">error<\/prop>\r\n        <\/props>\r\n    <\/property>\r\n<\/bean>\r\n<\/code><\/pre>\n
                            error\u662f\u51fa\u9519\u9875\u9762<\/p>\n
                             <\/p>\n
                            <\/a><\/a>\u5341\u4e94\u3001\u8bbe\u7f6e\u4e00\u4e2a\u81ea\u5b9a\u4e49\u62e6\u622a\u5668<\/h4>\n
                              \n
                            1. \u521b\u5efa\u4e00\u4e2aMyInterceptor\u7c7b\uff0c\u5e76\u5b9e\u73b0HandlerInterceptor\u63a5\u53e3<\/li>\n<\/ol>\n
                               <\/p>\n
                              public class MyInterceptor implements HandlerInterceptor {\r\n\r\n    @Override\r\n    public void afterCompletion(HttpServletRequest arg0,\r\n            HttpServletResponse arg1, Object arg2, Exception arg3)\r\n            throws Exception {\r\n        System.out.println(\"afterCompletion\");\r\n    }\r\n\r\n    @Override\r\n    public void postHandle(HttpServletRequest arg0, HttpServletResponse arg1,\r\n            Object arg2, ModelAndView arg3) throws Exception {\r\n        System.out.println(\"postHandle\");\r\n    }\r\n\r\n    @Override\r\n    public boolean preHandle(HttpServletRequest arg0, HttpServletResponse arg1,\r\n            Object arg2) throws Exception {\r\n        System.out.println(\"preHandle\");\r\n        return true;\r\n    }\r\n\r\n}\r\n<\/code><\/pre>\n
                               <\/p>\n
                               <\/p>\n","protected":false},"excerpt":{"rendered":"
                              \u8fd9\u91cc\u5bf9SpringMVC\u6846\u67b6\u8fdb\u884c\u4e00\u4e2a\u7b80\u5355\u7684\u4ecb\u7ecd\uff1a springmvc\u662fspring\u6846\u67b6\u7684\u4e00\u4e2a\u6a21\u5757\uff0cspringmvc\u548cspring\u65e0\u9700\u901a\u8fc7\u4e2d\u95f4\u6574\u5408\u5c42\u8fdb\u884c\u6574\u5408\u3002 springmvc\u662f\u4e00\u4e2a\u57fa\u4e8emvc\u7684web\u6846\u67b6\u3002 springmvc \u8868\u73b0\u5c42\uff1a\u65b9\u4fbf\u524d\u540e\u7aef\u6570\u636e\u7684\u4f20\u8f93 Spring MVC \u62e5\u6709\u63a7\u5236\u5668\uff0c\u4f5c\u7528\u8ddfStruts\u7c7b\u4f3c\uff0c\u63a5\u6536\u5916\u90e8\u8bf7\u6c42\uff0c\u89e3\u6790\u53c2\u6570\u4f20\u7ed9\u670d\u52a1\u5c42 MVC\u662f\u6307\uff0cC\u63a7\u5236\u5c42\uff0cM\u6a21\u5757\u5c42\uff0cV\u663e\u793a\u5c42\u8fd9\u6837\u7684\u8bbe\u8ba1\u7406\u5ff5\uff0c\u800cSSM\u6846\u67b6\u91cc\u9762SPRING MVC\u672c\u8eab\u5c31\u662fMVC\u6846\u67b6\uff0c\u4f5c\u7528\u662f\u5e2e\u52a9\uff08\u67d0\u79cd\u610f\u4e49\u4e0a\u4e5f\u53ef\u4ee5 \u7406\u89e3\u4e3a\u7ea6\u675f\uff09\u6211\u4eec\u8981\u6309\u7167MVC\u8fd9\u6837\u7684\u8bbe\u8ba1\u6765\u5f00\u53d1WEB\u9879\u76ee\uff0c\u800c\u53e6\u5916\u4e24\u4e2a\u6846\u67b6spring\u4e3b\u8981\u662f\u7528\u4f5cIOC,AOP\u7b49\u5176\u4ed6\u7684\u4e00\u4e9b\u8bbe\u8ba1\u539f\u5219\uff0c\u81f3\u4e8emybatis\u662f\u7528\u6765\u65b9\u4fbf\u64cd\u4f5c\u6570\u636e\u5e93\u7684\uff0c\u6240\u4ee5\u4ed6\u4eec\u90fd\u5728MV\u91cc\u9762\uff0c\u81f3\u4e8eV\u6307\u7684\u662f\u5c55\u793a\u90e8\u5206\uff0c\u4e00\u822c\u662f\u6307JSP\uff0cfreemarks\u8fd9\u79cd\u524d\u63d0\u5176\u5b9e\uff0c\u548cSSM\u5c31\u6ca1\u6709\u592a\u5927\u7684\u5173\u7cfb\u4e86 SpringMVC\u67b6\u6784\uff08MVC\u8bbe\u8ba1\u6a21\u5f0f\u5728BS\u7cfb\u7edf\u4e0b\u7684\u5e94\u7528\uff09 \u2014\u2014\u2014\u2014\u2014\u2014\u2014\u2014\u2014\u2014\u2014\u2014\u2014\u2014\u2014\u2014 springmvc\u9879\u76ee\u67b6\u6784\u56fe   Springmvc\u67b6\u6784\u539f\u7406\u89e3\u6790 \u53d1\u8d77\u8bf7\u6c42\u5230\u524d\u7aef\u63a7\u5236\u5668(DispatcherServlet) \u524d\u7aef\u63a7\u5236\u5668\u8bf7\u6c42HandlerMapping\u67e5\u627e Handler\uff0c\u53ef\u4ee5\u6839\u636exml\u914d\u7f6e\u3001\u6ce8\u89e3\u8fdb\u884c\u67e5\u627e \u5904\u7406\u5668\u6620\u5c04\u5668HandlerMapping\u5411\u524d\u7aef\u63a7\u5236\u5668\u8fd4\u56deHandler \u524d\u7aef\u63a7\u5236\u5668\u8c03\u7528\u5904\u7406\u5668\u9002\u914d\u5668\u53bb\u6267\u884cHandler \u5904\u7406\u5668\u9002\u914d\u5668\u53bb\u6267\u884cHandler Handler\u6267\u884c\u5b8c\u6210\u7ed9\u9002\u914d\u5668\u8fd4\u56deModelAndView \u5904\u7406\u5668\u9002\u914d\u5668\u5411\u524d\u7aef\u63a7\u5236\u5668\u8fd4\u56deModelAndView\uff0cModelAndView\u662fspringmvc\u6846\u67b6\u7684\u4e00\u4e2a\u5e95\u5c42\u5bf9\u8c61\uff0c\u5305\u62ec Model\u548cview \u524d\u7aef\u63a7\u5236\u5668\u8bf7\u6c42\u89c6\u56fe\u89e3\u6790\u5668\u53bb\u8fdb\u884c\u89c6\u56fe\u89e3\u6790\uff0c\u6839\u636e\u903b\u8f91\u89c6\u56fe\u540d\u89e3\u6790\u6210\u771f\u6b63\u7684\u89c6\u56fe(jsp) \u89c6\u56fe\u89e3\u6790\u5668\u5411\u524d\u7aef\u63a7\u5236\u5668\u8fd4\u56deView \u524d\u7aef\u63a7\u5236\u5668\u8fdb\u884c\u89c6\u56fe\u6e32\u67d3\uff0c\u89c6\u56fe\u6e32\u67d3\u5c06\u6a21\u578b\u6570\u636e(\u5728ModelAndView\u5bf9\u8c61\u4e2d)\u586b\u5145\u5230request\u57df \u524d\u7aef\u63a7\u5236\u5668\u5411\u7528\u6237\u54cd\u5e94\u7ed3\u679c \u7ec4\u4ef6\uff1a 1\u3001\u524d\u7aef\u63a7\u5236\u5668DispatcherServlet\uff08\u4e0d\u9700\u8981\u7a0b\u5e8f\u5458\u5f00\u53d1\uff09 \u4f5c\u7528\u63a5\u6536\u8bf7\u6c42\uff0c\u54cd\u5e94\u7ed3\u679c\uff0c\u76f8\u5f53\u4e8e\u8f6c\u53d1\u5668\uff0c\u4e2d\u592e\u5904\u7406\u5668\u3002 \u6709\u4e86DispatcherServlet\u51cf\u5c11\u4e86\u5176\u5b83\u7ec4\u4ef6\u4e4b\u95f4\u7684\u8026\u5408\u5ea6\u3002 2\u3001\u5904\u7406\u5668\u6620\u5c04\u5668HandlerMapping(\u4e0d\u9700\u8981\u7a0b\u5e8f\u5458\u5f00\u53d1) \u4f5c\u7528\uff1a\u6839\u636e\u8bf7\u6c42\u7684url\u67e5\u627eHandler 3\u3001\u5904\u7406\u5668\u9002\u914d\u5668HandlerAdapter \u4f5c\u7528\uff1a\u6309\u7167\u7279\u5b9a\u89c4\u5219\uff08HandlerAdapter\u8981\u6c42\u7684\u89c4\u5219\uff09\u53bb\u6267\u884cHandler 4\u3001\u5904\u7406\u5668Handler(\u9700\u8981\u7a0b\u5e8f\u5458\u5f00\u53d1) \u6ce8\u610f\uff1a\u7f16\u5199Handler\u65f6\u6309\u7167HandlerAdapter\u7684\u8981\u6c42\u53bb\u505a\uff0c\u8fd9\u6837\u9002\u914d\u5668\u624d\u53ef\u4ee5\u53bb\u6b63\u786e\u6267\u884cHandler 5\u3001\u89c6\u56fe\u89e3\u6790\u5668View resolver(\u4e0d\u9700\u8981\u7a0b\u5e8f\u5458\u5f00\u53d1) \u4f5c\u7528\uff1a\u8fdb\u884c\u89c6\u56fe\u89e3\u6790\uff0c\u6839\u636e\u903b\u8f91\u89c6\u56fe\u540d\u89e3\u6790\u6210\u771f\u6b63\u7684\u89c6\u56fe\uff08view\uff09 6\u3001\u89c6\u56feView(\u9700\u8981\u7a0b\u5e8f\u5458\u5f00\u53d1jsp) View\u662f\u4e00\u4e2a\u63a5\u53e3\uff0c\u5b9e\u73b0\u7c7b\u652f\u6301\u4e0d\u540c\u7684View\u7c7b\u578b\uff08jsp\u3001freemarker\u3001pdf\u2026\uff09 SpringMVC\u5b66\u4e60\u7b14\u8bb0 \u4e00\u3001SpringMVC\u57fa\u7840\u5165\u95e8\uff0c\u521b\u5efa\u4e00\u4e2aHelloWorld\u7a0b\u5e8f \u9996\u5148\uff0c\u5bfc\u5165SpringMVC\u9700\u8981\u7684jar\u5305\u3002 \u6dfb\u52a0Web.xml\u914d\u7f6e\u6587\u4ef6\u4e2d\u5173\u4e8eSpringMVC\u7684\u914d\u7f6e \u2014\u2014\u2014\u2014\u2014\u2014\u2014\u2014\u2014\u2014\u2014\u2014\u2014\u2014\u2014\u2014 <!–configure the setting of springmvcDispatcherServlet and […]<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"closed","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[1],"tags":[],"class_list":["post-69","post","type-post","status-publish","format-standard","hentry","category-uncategorized"],"_links":{"self":[{"href":"https:\/\/ishht.com\/index.php?rest_route=\/wp\/v2\/posts\/69","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/ishht.com\/index.php?rest_route=\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/ishht.com\/index.php?rest_route=\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/ishht.com\/index.php?rest_route=\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/ishht.com\/index.php?rest_route=%2Fwp%2Fv2%2Fcomments&post=69"}],"version-history":[{"count":0,"href":"https:\/\/ishht.com\/index.php?rest_route=\/wp\/v2\/posts\/69\/revisions"}],"wp:attachment":[{"href":"https:\/\/ishht.com\/index.php?rest_route=%2Fwp%2Fv2%2Fmedia&parent=69"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/ishht.com\/index.php?rest_route=%2Fwp%2Fv2%2Fcategories&post=69"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/ishht.com\/index.php?rest_route=%2Fwp%2Fv2%2Ftags&post=69"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}