{"id":683,"date":"2023-02-26T14:40:47","date_gmt":"2023-02-26T06:40:47","guid":{"rendered":"https:\/\/www.appblog.cn\/?p=683"},"modified":"2023-04-29T17:58:22","modified_gmt":"2023-04-29T09:58:22","slug":"several-ways-to-obtain-parameters-in-spring-boot","status":"publish","type":"post","link":"https:\/\/www.appblog.cn\/index.php\/2023\/02\/26\/several-ways-to-obtain-parameters-in-spring-boot\/","title":{"rendered":"Spring Boot\u83b7\u53d6\u53c2\u6570\u7684\u51e0\u79cd\u65b9\u5f0f"},"content":{"rendered":"

\u76f4\u63a5\u628a\u8868\u5355\u7684\u53c2\u6570\u5199\u5728Controller\u76f8\u5e94\u7684\u65b9\u6cd5\u7684\u5f62\u53c2\u4e2d<\/h3>\n

\u76f4\u63a5\u628a\u8868\u5355\u7684\u53c2\u6570\u5199\u5728Controller\u76f8\u5e94\u7684\u65b9\u6cd5\u7684\u5f62\u53c2\u4e2d\uff0c\u9002\u7528\u4e8eget\u65b9\u5f0f\u63d0\u4ea4\uff0c\u4e0d\u9002\u7528\u4e8epost\u65b9\u5f0f\u63d0\u4ea4<\/p>\n

<\/p>\n

\/**\n * \u76f4\u63a5\u628a\u8868\u5355\u7684\u53c2\u6570\u5199\u5728Controller\u76f8\u5e94\u7684\u65b9\u6cd5\u7684\u5f62\u53c2\u4e2d\n * @param username\n * @param password\n * @return\n *\/\n@RequestMapping("\/addUser1")\npublic String addUser1(String username, String password) {\n    System.out.println("username is: " + username);\n    System.out.println("password is: " + password);\n    return "demo\/index";\n}<\/code><\/pre>\n
Url\u5f62\u5f0f\uff1ahttp:\/\/localhost\/AppBlog\/demo\/addUser1?username=appblog&password=888888<\/code>\uff0c\u63d0\u4ea4\u7684\u53c2\u6570\u9700\u8981\u548cController\u65b9\u6cd5\u4e2d\u7684\u5165\u53c2\u540d\u79f0\u4e00\u81f4<\/p>\n
\u901a\u8fc7HttpServletRequest\u63a5\u6536<\/h3>\n
\u901a\u8fc7HttpServletRequest<\/code>\u63a5\u6536\uff0cpost\u65b9\u5f0f\u548cget\u65b9\u5f0f\u90fd\u53ef\u4ee5<\/p>\n
\/**\n * \u901a\u8fc7HttpServletRequest\u63a5\u6536\n * @param request\n * @return\n *\/\n@RequestMapping("\/addUser2")\npublic String addUser2(HttpServletRequest request) {\n    String username=request.getParameter("username");\n    String password=request.getParameter("password");\n    System.out.println("username is: " + username);\n    System.out.println("password is: " + password);\n    return "demo\/index";\n}<\/code><\/pre>\n
\u901a\u8fc7\u4e00\u4e2abean\u6765\u63a5\u6536<\/h3>\n
\u901a\u8fc7\u4e00\u4e2abean\u6765\u63a5\u6536\uff0cpost\u65b9\u5f0f\u548cget\u65b9\u5f0f\u90fd\u53ef\u4ee5<\/p>\n
\/**\n * \u901a\u8fc7\u4e00\u4e2abean\u6765\u63a5\u6536\n * @param user\n * @return\n *\/\n@RequestMapping("\/addUser3")\npublic String addUser3(UserModel user) {\n    System.out.println("username is: " + user.getUsername());\n    System.out.println("password is: " + user.getPassword());\n    return "demo\/index";\n}<\/code><\/pre>\n
\u901a\u8fc7@PathVariable<\/code>\u83b7\u53d6\u8def\u5f84\u4e2d\u7684\u53c2\u6570<\/h3>\n
\/**\n * \u901a\u8fc7@PathVariable\u83b7\u53d6\u8def\u5f84\u4e2d\u7684\u53c2\u6570\n * @param username\n * @param password\n * @return\n *\/\n@RequestMapping(value="\/addUser4\/{username}\/{password}", method=RequestMethod.GET)\npublic String addUser4(@PathVariable String username, @PathVariable String password) {\n    System.out.println("username is: " + username);\n    System.out.println("password is: " + password);\n    return "demo\/index";\n}<\/code><\/pre>\n
\u8bbf\u95ee\uff1ahttp:\/\/localhost\/AppBlog\/demo\/addUser4\/appblog\/888888<\/code>\u8def\u5f84\u65f6\uff0c\u5219\u81ea\u52a8\u5c06URL\u4e2d\u6a21\u677f\u53d8\u91cf{username}<\/code>\u548c{password}<\/code>\u7ed1\u5b9a\u5230\u901a\u8fc7@PathVariable<\/code>\u6ce8\u89e3\u7684\u540c\u540d\u53c2\u6570\u4e0a\uff0c\u5373\u5165\u53c2\u540eusername=appblog\u3001password=888888<\/p>\n
\u4f7f\u7528@ModelAttribute<\/code>\u6ce8\u89e3\u83b7\u53d6POST\u8bf7\u6c42\u7684FORM\u8868\u5355\u6570\u636e<\/h3>\n
<!--jsp\u9875\u9762-->\n<form action ="<%=request.getContextPath()%>\/demo\/addUser5" method="post"> \n     \u7528\u6237\u540d: <input type="text" name="username"\/><br\/>\n     \u5bc6  \u7801: <input type="password" name="password"\/><br\/>\n     <input type="submit" value="\u63d0\u4ea4"\/> \n     <input type="reset" value="\u91cd\u7f6e"\/> \n<\/form> <\/code><\/pre>\n
\/**\n * \u4f7f\u7528@ModelAttribute\u6ce8\u89e3\u83b7\u53d6POST\u8bf7\u6c42\u7684FORM\u8868\u5355\u6570\u636e\n * @param user\n * @return\n *\/\n@RequestMapping(value="\/addUser5", method=RequestMethod.POST)\npublic String addUser5(@ModelAttribute("user") UserModel user) {\n    System.out.println("username is: " + user.getUsername());\n    System.out.println("password is: " + user.getPassword());\n    return "demo\/index";\n}<\/code><\/pre>\n
\u7528\u6ce8\u89e3@RequestParam<\/code>\u7ed1\u5b9a\u8bf7\u6c42\u53c2\u6570\u5230\u65b9\u6cd5\u5165\u53c2<\/h3>\n
\u5f53\u8bf7\u6c42\u53c2\u6570username\u4e0d\u5b58\u5728\u65f6\u4f1a\u6709\u5f02\u5e38\u53d1\u751f\uff0c\u53ef\u4ee5\u901a\u8fc7\u8bbe\u7f6e\u5c5e\u6027required=false<\/code>\u89e3\u51b3<\/p>\n
\u4f8b\u5982: @RequestParam(value="username", required=false)<\/code><\/p>\n","protected":false},"excerpt":{"rendered":"
\u76f4\u63a5\u628a\u8868\u5355\u7684\u53c2\u6570\u5199\u5728Controller\u76f8\u5e94\u7684\u65b9\u6cd5\u7684\u5f62\u53c2\u4e2d \u76f4\u63a5\u628a\u8868\u5355\u7684\u53c2\u6570\u5199\u5728Controller\u76f8\u5e94\u7684\u65b9\u6cd5 […]<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[41],"tags":[],"class_list":["post-683","post","type-post","status-publish","format-standard","hentry","category-spring-boot"],"_links":{"self":[{"href":"https:\/\/www.appblog.cn\/index.php\/wp-json\/wp\/v2\/posts\/683","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/www.appblog.cn\/index.php\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/www.appblog.cn\/index.php\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/www.appblog.cn\/index.php\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/www.appblog.cn\/index.php\/wp-json\/wp\/v2\/comments?post=683"}],"version-history":[{"count":0,"href":"https:\/\/www.appblog.cn\/index.php\/wp-json\/wp\/v2\/posts\/683\/revisions"}],"wp:attachment":[{"href":"https:\/\/www.appblog.cn\/index.php\/wp-json\/wp\/v2\/media?parent=683"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.appblog.cn\/index.php\/wp-json\/wp\/v2\/categories?post=683"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.appblog.cn\/index.php\/wp-json\/wp\/v2\/tags?post=683"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}