{"id":2977,"date":"2022-12-29T21:39:46","date_gmt":"2022-12-29T13:39:46","guid":{"rendered":"https:\/\/qaqaq.top\/?p=2977"},"modified":"2022-12-29T21:39:47","modified_gmt":"2022-12-29T13:39:47","slug":"httpmessageconverter","status":"publish","type":"post","link":"https:\/\/qaqaq.top\/?p=2977","title":{"rendered":"HttpMessageConverter"},"content":{"rendered":"\n

HttpMessageConverter\uff0c\u62a5\u6587\u4fe1\u606f\u8f6c\u6362\u5668\uff0c\u5c06\u8bf7\u6c42\u62a5\u6587\u8f6c\u6362\u4e3aJava\u5bf9\u8c61\uff0c\u6216\u5c06Java\u5bf9\u8c61\u8f6c\u6362\u4e3a\u54cd\u5e94\u62a5
\u6587<\/p>\n\n\n\n

HttpMessageConverter\u63d0\u4f9b\u4e86\u4e24\u4e2a\u6ce8\u89e3\u548c\u4e24\u4e2a\u7c7b\u578b\uff1a@RequestBody\uff0c@ResponseBody\uff0c
RequestEntity\uff0cResponseEntity<\/p>\n\n\n\n

1\u3001@RequestBody<\/h2>\n\n\n\n

@RequestBody\u53ef\u4ee5\u83b7\u53d6\u8bf7\u6c42\u4f53\uff0c\u9700\u8981\u5728\u63a7\u5236\u5668\u65b9\u6cd5\u8bbe\u7f6e\u4e00\u4e2a\u5f62\u53c2\uff0c\u4f7f\u7528@RequestBody\u8fdb\u884c\u6807\u8bc6\uff0c\u5f53
\u524d\u8bf7\u6c42\u7684\u8bf7\u6c42\u4f53\u5c31\u4f1a\u4e3a\u5f53\u524d\u6ce8\u89e3\u6240\u6807\u8bc6\u7684\u5f62\u53c2\u8d4b\u503c<\/p>\n\n\n\n

<form th:action=\"@{\/testRequestBody}\" method=\"post\">\r\n    \u7528\u6237\u540d\uff1a<input type=\"text\" name=\"username\"><br>\r\n    \u5bc6\u7801\uff1a<input type=\"password\" name=\"password\"><br>\r\n    <input type=\"submit\">\r\n<\/form><\/code><\/pre>\n\n\n\n
    @RequestMapping(\"\/testRequestBody\")\r\n    public String testRequestBody(@RequestBody String requestBody){\r\n        System.out.println(\"requestBody:\"+requestBody);\r\n        return \" success \" ;\r\n    }<\/code><\/pre>\n\n\n\n
\u8f93\u51fa\u7ed3\u679c\uff1a<\/p>\n\n\n\n
requestBody:username=admin&password=123456<\/p>\n\n\n\n
2\u3001RequestEntity<\/h2>\n\n\n\n
RequestEntity\u5c01\u88c5\u8bf7\u6c42\u62a5\u6587\u7684\u4e00\u79cd\u7c7b\u578b\uff0c\u9700\u8981\u5728\u63a7\u5236\u5668\u65b9\u6cd5\u7684\u5f62\u53c2\u4e2d\u8bbe\u7f6e\u8be5\u7c7b\u578b\u7684\u5f62\u53c2\uff0c\u5f53\u524d\u8bf7\u6c42\u7684
\u8bf7\u6c42\u62a5\u6587\u5c31\u4f1a\u8d4b\u503c\u7ed9\u8be5\u5f62\u53c2\uff0c\u53ef\u4ee5\u901a\u8fc7getHeaders()\u83b7\u53d6\u8bf7\u6c42\u5934\u4fe1\u606f\uff0c\u901a\u8fc7getBody()\u83b7\u53d6\u8bf7\u6c42\u4f53\u4fe1\u606f<\/p>\n\n\n\n
    @RequestMapping(\"\/testRequestEntity\")\r\n    public String testRequestEntity(RequestEntity<String> requestEntity){\r\n        System.out.println(\"requestHeader:\"+requestEntity.getHeaders());\r\n        System.out.println(\"requestBody:\"+requestEntity.getBody());\r\n        return \" success \" ;\r\n    }<\/code><\/pre>\n\n\n\n
\u8f93\u51fa\u7ed3\u679c\uff1a<\/p>\n\n\n\n
requestHeader:[host:”localhost:8080″, connection:”keep-alive”, content-length:”27″,
cache-control:”max-age=0″, sec-ch-ua:”” Not A;Brand”;v=”99″, “Chromium”;v=”90″, “Google
Chrome”;v=”90″”, sec-ch-ua-mobile:”?0″, upgrade-insecure-requests:”1″, origin:”http:\/\/localhost:8
080″, user-agent:”Mozilla\/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit\/537.36 (KHTML, like
Gecko) Chrome\/90.0.4430.93 Safari\/537.36″] requestBody:username=admin&password=123<\/p>\n\n\n\n
3\u3001@ResponseBody<\/h2>\n\n\n\n
@ResponseBody\u7528\u4e8e\u6807\u8bc6\u4e00\u4e2a\u63a7\u5236\u5668\u65b9\u6cd5\uff0c\u53ef\u4ee5\u5c06\u8be5\u65b9\u6cd5\u7684\u8fd4\u56de\u503c\u76f4\u63a5\u4f5c\u4e3a\u54cd\u5e94\u62a5\u6587\u7684\u54cd\u5e94\u4f53\u54cd\u5e94\u5230
\u6d4f\u89c8\u5668<\/p>\n\n\n\n
    @RequestMapping(\"\/testResponseBody\")\r\n    @ResponseBody\r\n    public String testResponseBody(){\r\n        return \" success \" ;\r\n    }<\/code><\/pre>\n\n\n\n
\u7ed3\u679c\uff1a\u6d4f\u89c8\u5668\u9875\u9762\u663e\u793asuccess<\/p>\n\n\n\n
4\u3001SpringMVC\u5904\u7406json<\/h2>\n\n\n\n
@ResponseBody\u5904\u7406json\u7684\u6b65\u9aa4\uff1a<\/p>\n\n\n\n
a>\u5bfc\u5165jackson\u7684\u4f9d\u8d56<\/p>\n\n\n\n
    <dependency>\r\n      <groupId>com.fasterxml.jackson.core<\/groupId>\r\n      <artifactId>jackson-databind<\/artifactId>\r\n      <version>2.12.1<\/version>\r\n    <\/dependency><\/code><\/pre>\n\n\n\n
b>\u5728SpringMVC\u7684\u6838\u5fc3\u914d\u7f6e\u6587\u4ef6\u4e2d\u5f00\u542fmvc\u7684\u6ce8\u89e3\u9a71\u52a8\uff0c\u6b64\u65f6\u5728HandlerAdaptor\u4e2d\u4f1a\u81ea\u52a8\u88c5\u914d\u4e00\u4e2a\u6d88
\u606f\u8f6c\u6362\u5668\uff1aMappingJackson2HttpMessageConverter\uff0c\u53ef\u4ee5\u5c06\u54cd\u5e94\u5230\u6d4f\u89c8\u5668\u7684Java\u5bf9\u8c61\u8f6c\u6362\u4e3aJson\u683c
\u5f0f\u7684\u5b57\u7b26\u4e32<\/p>\n\n\n\n
<mvc:annotation-driven \/><\/code><\/pre>\n\n\n\n
c>\u5728\u5904\u7406\u5668\u65b9\u6cd5\u4e0a\u4f7f\u7528@ResponseBody\u6ce8\u89e3\u8fdb\u884c\u6807\u8bc6<\/p>\n\n\n\n
d>\u5c06Java\u5bf9\u8c61\u76f4\u63a5\u4f5c\u4e3a\u63a7\u5236\u5668\u65b9\u6cd5\u7684\u8fd4\u56de\u503c\u8fd4\u56de\uff0c\u5c31\u4f1a\u81ea\u52a8\u8f6c\u6362\u4e3aJson\u683c\u5f0f\u7684\u5b57\u7b26\u4e32<\/p>\n\n\n\n
    @RequestMapping(\"\/testResponseUser\")\r\n    @ResponseBody\r\n    public User testResponseUser(){\r\n        return new User(1001,\"admin\",\"123456\",23,\"\u7537\");\r\n    }<\/code><\/pre>\n\n\n\n
\u6d4f\u89c8\u5668\u7684\u9875\u9762\u4e2d\u5c55\u793a\u7684\u7ed3\u679c\uff1a<\/p>\n\n\n\n
{“id”:1001,”username”:”admin”,”password”:”123456″,”age”:23,”sex”:”\u7537”}<\/p>\n\n\n\n
5\u3001SpringMVC\u5904\u7406ajax<\/h2>\n\n\n\n
a>\u8bf7\u6c42\u8d85\u94fe\u63a5\uff1a<\/p>\n\n\n\n
<div id=\"app\">\r\n    <a th:href=\"@{\/testAjax}\" @click=\"testAjax\">testAjax<\/a><br>\r\n<\/div><\/code><\/pre>\n\n\n\n
b>\u901a\u8fc7vue\u548caxios\u5904\u7406\u70b9\u51fb\u4e8b\u4ef6\uff1a<\/p>\n\n\n\n
<script type=\"text\/javascript\" th:src=\"@{\/static\/js\/vue.js}\"><\/script>\r\n<script type=\"text\/javascript\" th:src=\"@{\/static\/js\/axios.min.js}\"><\/script>\r\n<script type=\"text\/javascript\">\r\n    var vue = new Vue({\r\n        el:\"#app\",\r\n        methods:{\r\n            testAjax:function (event) {\r\n                axios({\r\n                    method:\"post\",\r\n                    url:event.target.href,\r\n                    params:{\r\n                        username:\"admin\",\r\n                        password:\"123456\"\r\n                    }\r\n                }).then(function (response) {\r\n                    alert(response.data);\r\n                });\r\n                event.preventDefault();\r\n            }\r\n        }\r\n    });\r\n<\/script><\/code><\/pre>\n\n\n\n
c>\u63a7\u5236\u5668\u65b9\u6cd5\uff1a<\/p>\n\n\n\n
    @RequestMapping(\"\/testAjax\")\r\n    @ResponseBody\r\n    public String testAjax(String username, String password){\r\n        System.out.println(\"username:\"+username+\",password:\"+password);\r\n        return \"hello,ajax\";\r\n    }<\/code><\/pre>\n\n\n\n
6\u3001@RestController\u6ce8\u89e3<\/h2>\n\n\n\n
@RestController\u6ce8\u89e3\u662fspringMVC\u63d0\u4f9b\u7684\u4e00\u4e2a\u590d\u5408\u6ce8\u89e3\uff0c\u6807\u8bc6\u5728\u63a7\u5236\u5668\u7684\u7c7b\u4e0a\uff0c\u5c31\u76f8\u5f53\u4e8e\u4e3a\u7c7b\u6dfb\u52a0\u4e86
@Controller\u6ce8\u89e3\uff0c\u5e76\u4e14\u4e3a\u5176\u4e2d\u7684\u6bcf\u4e2a\u65b9\u6cd5\u6dfb\u52a0\u4e86@ResponseBody\u6ce8\u89e3<\/p>\n\n\n\n
7\u3001ResponseEntity<\/h2>\n\n\n\n
ResponseEntity\u7528\u4e8e\u63a7\u5236\u5668\u65b9\u6cd5\u7684\u8fd4\u56de\u503c\u7c7b\u578b\uff0c\u8be5\u63a7\u5236\u5668\u65b9\u6cd5\u7684\u8fd4\u56de\u503c\u5c31\u662f\u54cd\u5e94\u5230\u6d4f\u89c8\u5668\u7684\u54cd\u5e94\u62a5\u6587<\/p>\n","protected":false},"excerpt":{"rendered":"
HttpMessageConverter\uff0c\u62a5\u6587\u4fe1\u606f\u8f6c\u6362\u5668\uff0c\u5c06\u8bf7\u6c42\u62a5\u6587\u8f6c\u6362\u4e3aJava\u5bf9\u8c61\uff0c\u6216\u5c06Java\u5bf9\u8c61\u8f6c\u6362\u4e3a […]<\/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-2977","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\/2977"}],"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=2977"}],"version-history":[{"count":1,"href":"https:\/\/qaqaq.top\/index.php?rest_route=\/wp\/v2\/posts\/2977\/revisions"}],"predecessor-version":[{"id":2978,"href":"https:\/\/qaqaq.top\/index.php?rest_route=\/wp\/v2\/posts\/2977\/revisions\/2978"}],"wp:attachment":[{"href":"https:\/\/qaqaq.top\/index.php?rest_route=%2Fwp%2Fv2%2Fmedia&parent=2977"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/qaqaq.top\/index.php?rest_route=%2Fwp%2Fv2%2Fcategories&post=2977"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/qaqaq.top\/index.php?rest_route=%2Fwp%2Fv2%2Ftags&post=2977"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}