{"id":2940,"date":"2022-12-27T15:52:02","date_gmt":"2022-12-27T07:52:02","guid":{"rendered":"https:\/\/qaqaq.top\/?p=2940"},"modified":"2022-12-27T15:57:58","modified_gmt":"2022-12-27T07:57:58","slug":"springmvc%e8%8e%b7%e5%8f%96%e8%af%b7%e6%b1%82%e5%8f%82%e6%95%b0","status":"publish","type":"post","link":"https:\/\/qaqaq.top\/?p=2940","title":{"rendered":"SpringMVC\u83b7\u53d6\u8bf7\u6c42\u53c2\u6570"},"content":{"rendered":"\n<h2 class=\"wp-block-heading\">1\u3001\u901a\u8fc7ServletAPI\u83b7\u53d6<\/h2>\n\n\n\n<p>\u5c06HttpServletRequest\u4f5c\u4e3a\u63a7\u5236\u5668\u65b9\u6cd5\u7684\u5f62\u53c2\uff0c\u6b64\u65f6HttpServletRequest\u7c7b\u578b\u7684\u53c2\u6570\u8868\u793a\u5c01\u88c5\u4e86\u5f53\u524d\u8bf7<br>\u6c42\u7684\u8bf7\u6c42\u62a5\u6587\u7684\u5bf9\u8c61<\/p>\n\n\n\n<pre class=\"wp-block-code\"><code>    @RequestMapping(\"\/testParam\")\r\n    public String testParam(HttpServletRequest request){\r\n        String username = request.getParameter(\"username\");\r\n        String password = request.getParameter(\"password\");\r\n        System.out.println(\"username:\"+username+\",password:\"+password);\r\n        return \" success \";\r\n    }<\/code><\/pre>\n\n\n\n<h2 class=\"wp-block-heading\">2\u3001\u901a\u8fc7\u63a7\u5236\u5668\u65b9\u6cd5\u7684\u5f62\u53c2\u83b7\u53d6\u8bf7\u6c42\u53c2\u6570<\/h2>\n\n\n\n<p>\u5728\u63a7\u5236\u5668\u65b9\u6cd5\u7684\u5f62\u53c2\u4f4d\u7f6e\uff0c\u8bbe\u7f6e\u548c\u8bf7\u6c42\u53c2\u6570\u540c\u540d\u7684\u5f62\u53c2\uff0c\u5f53\u6d4f\u89c8\u5668\u53d1\u9001\u8bf7\u6c42\uff0c\u5339\u914d\u5230\u8bf7\u6c42\u6620\u5c04\u65f6\uff0c\u5728<br>DispatcherServlet\u4e2d\u5c31\u4f1a\u5c06\u8bf7\u6c42\u53c2\u6570\u8d4b\u503c\u7ed9\u76f8\u5e94\u7684\u5f62\u53c2<\/p>\n\n\n\n<pre class=\"wp-block-code\"><code>    &lt;a th:href=\"@{\/testParam(username='admin',password=123456)}\">\u6d4b\u8bd5\u83b7\u53d6\u8bf7\u6c42\u53c2\u6570-- >\/testParam&lt;\/a>&lt;br><\/code><\/pre>\n\n\n\n<pre class=\"wp-block-code\"><code>    @RequestMapping(\"\/testParam\")\r\n    public String testParam(String username, String password){\r\n        System.out.println(\"username:\"+username+\",password:\"+password);\r\n        return \" success \";\r\n    }<\/code><\/pre>\n\n\n\n<blockquote class=\"wp-block-quote is-layout-flow wp-block-quote-is-layout-flow\"><p>\u6ce8\uff1a<\/p><p>\u82e5\u8bf7\u6c42\u6240\u4f20\u8f93\u7684\u8bf7\u6c42\u53c2\u6570\u4e2d\u6709\u591a\u4e2a\u540c\u540d\u7684\u8bf7\u6c42\u53c2\u6570\uff0c\u6b64\u65f6\u53ef\u4ee5\u5728\u63a7\u5236\u5668\u65b9\u6cd5\u7684\u5f62\u53c2\u4e2d\u8bbe\u7f6e\u5b57\u7b26\u4e32\u6570\u7ec4\u6216\u8005\u5b57\u7b26\u4e32\u7c7b\u578b\u7684\u5f62\u53c2\u63a5\u6536\u6b64\u8bf7\u6c42\u53c2\u6570<\/p><p>\u82e5\u4f7f\u7528\u5b57\u7b26\u4e32\u6570\u7ec4\u7c7b\u578b\u7684\u5f62\u53c2\uff0c\u6b64\u53c2\u6570\u7684\u6570\u7ec4\u4e2d\u5305\u542b\u4e86\u6bcf\u4e00\u4e2a\u6570\u636e<\/p><p>\u82e5\u4f7f\u7528\u5b57\u7b26\u4e32\u7c7b\u578b\u7684\u5f62\u53c2\uff0c\u6b64\u53c2\u6570\u7684\u503c\u4e3a\u6bcf\u4e2a\u6570\u636e\u4e2d\u95f4\u4f7f\u7528\u9017\u53f7\u62fc\u63a5\u7684\u7ed3\u679c<\/p><\/blockquote>\n\n\n\n<h2 class=\"wp-block-heading\">3\u3001@RequestParam<\/h2>\n\n\n\n<p>@RequestParam\u662f\u5c06\u8bf7\u6c42\u53c2\u6570\u548c\u63a7\u5236\u5668\u65b9\u6cd5\u7684\u5f62\u53c2\u521b\u5efa\u6620\u5c04\u5173\u7cfb<\/p>\n\n\n\n<p>@RequestParam\u6ce8\u89e3\u4e00\u5171\u6709\u4e09\u4e2a\u5c5e\u6027\uff1a<\/p>\n\n\n\n<p>value\uff1a\u6307\u5b9a\u4e3a\u5f62\u53c2\u8d4b\u503c\u7684\u8bf7\u6c42\u53c2\u6570\u7684\u53c2\u6570\u540d<\/p>\n\n\n\n<p>required\uff1a\u8bbe\u7f6e\u662f\u5426\u5fc5\u987b\u4f20\u8f93\u6b64\u8bf7\u6c42\u53c2\u6570\uff0c\u9ed8\u8ba4\u503c\u4e3atrue<\/p>\n\n\n\n<p>\u82e5\u8bbe\u7f6e\u4e3atrue\u65f6\uff0c\u5219\u5f53\u524d\u8bf7\u6c42\u5fc5\u987b\u4f20\u8f93value\u6240\u6307\u5b9a\u7684\u8bf7\u6c42\u53c2\u6570\uff0c\u82e5\u6ca1\u6709\u4f20\u8f93\u8be5\u8bf7\u6c42\u53c2\u6570\uff0c\u4e14\u6ca1\u6709\u8bbe\u7f6e<br>defaultValue\u5c5e\u6027\uff0c\u5219\u9875\u9762\u62a5\u9519400\uff1aRequired String parameter &#8216;xxx&#8217; is not present\uff1b\u82e5\u8bbe\u7f6e\u4e3a<br>false\uff0c\u5219\u5f53\u524d\u8bf7\u6c42\u4e0d\u662f\u5fc5\u987b\u4f20\u8f93value\u6240\u6307\u5b9a\u7684\u8bf7\u6c42\u53c2\u6570\uff0c\u82e5\u6ca1\u6709\u4f20\u8f93\uff0c\u5219\u6ce8\u89e3\u6240\u6807\u8bc6\u7684\u5f62\u53c2\u7684\u503c\u4e3a<br>null<\/p>\n\n\n\n<p>defaultValue\uff1a\u4e0d\u7ba1required\u5c5e\u6027\u503c\u4e3atrue\u6216false\uff0c\u5f53value\u6240\u6307\u5b9a\u7684\u8bf7\u6c42\u53c2\u6570\u6ca1\u6709\u4f20\u8f93\u6216\u4f20\u8f93\u7684\u503c<br>\u4e3a&#8221;&#8221;\u65f6\uff0c\u5219\u4f7f\u7528\u9ed8\u8ba4\u503c\u4e3a\u5f62\u53c2\u8d4b\u503c<\/p>\n\n\n\n<h2 class=\"wp-block-heading\">4\u3001@RequestHeader<\/h2>\n\n\n\n<p>@RequestHeader\u662f\u5c06\u8bf7\u6c42\u5934\u4fe1\u606f\u548c\u63a7\u5236\u5668\u65b9\u6cd5\u7684\u5f62\u53c2\u521b\u5efa\u6620\u5c04\u5173\u7cfb<\/p>\n\n\n\n<p>@RequestHeader\u6ce8\u89e3\u4e00\u5171\u6709\u4e09\u4e2a\u5c5e\u6027\uff1avalue\u3001required\u3001defaultValue\uff0c\u7528\u6cd5\u540c@RequestParam<\/p>\n\n\n\n<h2 class=\"wp-block-heading\">5\u3001@CookieValue<\/h2>\n\n\n\n<p>@CookieValue\u662f\u5c06cookie\u6570\u636e\u548c\u63a7\u5236\u5668\u65b9\u6cd5\u7684\u5f62\u53c2\u521b\u5efa\u6620\u5c04\u5173\u7cfb<\/p>\n\n\n\n<p>@CookieValue\u6ce8\u89e3\u4e00\u5171\u6709\u4e09\u4e2a\u5c5e\u6027\uff1avalue\u3001required\u3001defaultValue\uff0c\u7528\u6cd5\u540c@RequestParam<\/p>\n\n\n\n<h2 class=\"wp-block-heading\">6\u3001\u901a\u8fc7POJO\u83b7\u53d6\u8bf7\u6c42\u53c2\u6570<\/h2>\n\n\n\n<p>\u53ef\u4ee5\u5728\u63a7\u5236\u5668\u65b9\u6cd5\u7684\u5f62\u53c2\u4f4d\u7f6e\u8bbe\u7f6e\u4e00\u4e2a\u5b9e\u4f53\u7c7b\u7c7b\u578b\u7684\u5f62\u53c2\uff0c\u6b64\u65f6\u82e5\u6d4f\u89c8\u5668\u4f20\u8f93\u7684\u8bf7\u6c42\u53c2\u6570\u7684\u53c2\u6570\u540d\u548c\u5b9e<br>\u4f53\u7c7b\u4e2d\u7684\u5c5e\u6027\u540d\u4e00\u81f4\uff0c\u90a3\u4e48\u8bf7\u6c42\u53c2\u6570\u5c31\u4f1a\u4e3a\u6b64\u5c5e\u6027\u8d4b\u503c<\/p>\n\n\n\n<pre class=\"wp-block-code\"><code>    &lt;form th:action=\"@{\/testpojo}\" method=\"post\">\r\n        \u7528\u6237\u540d\uff1a&lt;input type=\"text\" name=\"username\">&lt;br>\r\n        \u5bc6\u7801\uff1a&lt;input type=\"password\" name=\"password\">&lt;br>\r\n        \u6027\u522b\uff1a&lt;input type=\"radio\" name=\"sex\" value=\"\u7537\">\u7537&lt;input type=\"radio\"name=\"sex\" value=\"\u5973\">\u5973&lt;br>\r\n        \u5e74\u9f84\uff1a&lt;input type=\"text\" name=\"age\">&lt;br>\r\n        \u90ae\u7bb1\uff1a&lt;input type=\"text\" name=\"email\">&lt;br>\r\n        &lt;input type=\"submit\">\r\n    &lt;\/form><\/code><\/pre>\n\n\n\n<pre class=\"wp-block-code\"><code>    @RequestMapping(\"\/testpojo\")\r\n    public String testPOJO(User user){\r\n        System.out.println(user);\r\n        return \" success \";\r\n    }\r\n    \/\/\u6700\u7ec8\u7ed3\u679c-->User{id=null, username='\u5f20\u4e09', password='123', age=23, sex='\u7537',email='123@qq.com'}<\/code><\/pre>\n\n\n\n<h2 class=\"wp-block-heading\">7\u3001\u89e3\u51b3\u83b7\u53d6\u8bf7\u6c42\u53c2\u6570\u7684\u4e71\u7801\u95ee\u9898<\/h2>\n\n\n\n<p>\u89e3\u51b3\u83b7\u53d6\u8bf7\u6c42\u53c2\u6570\u7684\u4e71\u7801\u95ee\u9898\uff0c\u53ef\u4ee5\u4f7f\u7528SpringMVC\u63d0\u4f9b\u7684\u7f16\u7801\u8fc7\u6ee4\u5668CharacterEncodingFilter\uff0c\u4f46\u662f<br>\u5fc5\u987b\u5728web.xml\u4e2d\u8fdb\u884c\u6ce8\u518c<\/p>\n\n\n\n<pre class=\"wp-block-code\"><code>  &lt;!--\u914d\u7f6espringMVC\u7684\u7f16\u7801\u8fc7\u6ee4\u5668-->\r\n  &lt;filter>\r\n    &lt;filter-name>CharacterEncodingFilter&lt;\/filter-name>\r\n    &lt;filter-class>org.springframework.web.filter.CharacterEncodingFilter&lt;\/filter-class>\r\n    &lt;init-param>\r\n      &lt;param-name>encoding&lt;\/param-name>\r\n      &lt;param-value>UTF-8&lt;\/param-value>\r\n    &lt;\/init-param>\r\n    &lt;init-param>\r\n      &lt;param-name>forceResponseEncoding&lt;\/param-name>\r\n      &lt;param-value>true&lt;\/param-value>\r\n    &lt;\/init-param>\r\n  &lt;\/filter>\r\n  &lt;filter-mapping>\r\n    &lt;filter-name>CharacterEncodingFilter&lt;\/filter-name>\r\n    &lt;url-pattern>\/*&lt;\/url-pattern>\r\n  &lt;\/filter-mapping><\/code><\/pre>\n\n\n\n<blockquote class=\"wp-block-quote is-layout-flow wp-block-quote-is-layout-flow\"><p>\u6ce8\uff1a<\/p><p>SpringMVC\u4e2d\u5904\u7406\u7f16\u7801\u7684\u8fc7\u6ee4\u5668\u4e00\u5b9a\u8981\u914d\u7f6e\u5230\u5176\u4ed6\u8fc7\u6ee4\u5668\u4e4b\u524d\uff0c\u5426\u5219\u65e0\u6548<\/p><\/blockquote>\n","protected":false},"excerpt":{"rendered":"<p>1\u3001\u901a\u8fc7ServletAPI\u83b7\u53d6 \u5c06HttpServletRequest\u4f5c\u4e3a\u63a7\u5236\u5668\u65b9\u6cd5\u7684\u5f62\u53c2\uff0c\u6b64\u65f6HttpSe [&hellip;]<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[105],"tags":[112],"class_list":["post-2940","post","type-post","status-publish","format-standard","hentry","category-springmvc-code","tag-springmvc"],"_links":{"self":[{"href":"https:\/\/qaqaq.top\/index.php?rest_route=\/wp\/v2\/posts\/2940"}],"collection":[{"href":"https:\/\/qaqaq.top\/index.php?rest_route=\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/qaqaq.top\/index.php?rest_route=\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/qaqaq.top\/index.php?rest_route=\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/qaqaq.top\/index.php?rest_route=%2Fwp%2Fv2%2Fcomments&post=2940"}],"version-history":[{"count":2,"href":"https:\/\/qaqaq.top\/index.php?rest_route=\/wp\/v2\/posts\/2940\/revisions"}],"predecessor-version":[{"id":2943,"href":"https:\/\/qaqaq.top\/index.php?rest_route=\/wp\/v2\/posts\/2940\/revisions\/2943"}],"wp:attachment":[{"href":"https:\/\/qaqaq.top\/index.php?rest_route=%2Fwp%2Fv2%2Fmedia&parent=2940"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/qaqaq.top\/index.php?rest_route=%2Fwp%2Fv2%2Fcategories&post=2940"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/qaqaq.top\/index.php?rest_route=%2Fwp%2Fv2%2Ftags&post=2940"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}