{"id":705,"date":"2025-02-17T15:59:02","date_gmt":"2025-02-17T07:59:02","guid":{"rendered":"http:\/\/www.cmd137blog.top\/?p=705"},"modified":"2025-02-17T15:59:04","modified_gmt":"2025-02-17T07:59:04","slug":"httpclient","status":"publish","type":"post","link":"http:\/\/www.cmd137blog.top\/?p=705","title":{"rendered":"HttpClient"},"content":{"rendered":"\n

1\u3001\u57fa\u672c\u4f7f\u7528\u6b65\u9aa4<\/h2>\n\n\n\n
    \n
  1. \u5f15\u5165\u4f9d\u8d56<\/strong>\uff1a\u5728\u9879\u76ee\u4e2d\u6dfb\u52a0 HTTPclient \u7684\u4f9d\u8d56\uff0c\u5982\u679c\u4f7f\u7528 Maven\uff0c\u53ef\u4ee5\u5728pom.xml<\/code>\u6587\u4ef6\u4e2d\u6dfb\u52a0\u5982\u4e0b\u4f9d\u8d56\uff1a<\/li>\n<\/ol>\n\n\n\n
    <dependency>\n    <groupId>org.apache.httpcomponents<\/groupId>\n    <artifactId>httpclient<\/artifactId>\n    <version>4.5.13<\/version>\n<\/dependency>\n<\/code><\/pre>\n\n\n\n
      \n
    1. \u521b\u5efa HttpClient \u5b9e\u4f8b<\/strong>\uff1a\u901a\u5e38\u4f7f\u7528CloseableHttpClient<\/code>\u6765\u521b\u5efa\u4e00\u4e2a\u53ef\u5173\u95ed\u7684 HTTP \u5ba2\u6237\u7aef\u5b9e\u4f8b\u3002\u53ef\u4ee5\u901a\u8fc7HttpClients<\/code>\u5de5\u5177\u7c7b\u6765\u521b\u5efa\uff0c\u5982\uff1a<\/li>\n<\/ol>\n\n\n\n
      CloseableHttpClient httpClient = HttpClients.createDefault();\n<\/code><\/pre>\n\n\n\n
        \n
      1. \u521b\u5efa HttpUriRequest \u5b9e\u4f8b<\/strong>\uff1a\u6839\u636e\u4e0d\u540c\u7684 HTTP \u8bf7\u6c42\u65b9\u6cd5\uff0c\u521b\u5efa\u76f8\u5e94\u7684\u8bf7\u6c42\u5b9e\u4f8b\uff0c\u5982HttpGet<\/code>\u3001HttpPost<\/code>\u7b49\u3002\u4f8b\u5982\u521b\u5efa\u4e00\u4e2a GET \u8bf7\u6c42\uff1a<\/li>\n<\/ol>\n\n\n\n
        HttpGet httpGet = new HttpGet(\"https:\/\/example.com\/api\/data\");\n<\/code><\/pre>\n\n\n\n
          \n
        1. \u6267\u884c\u8bf7\u6c42<\/strong> execute\u65b9\u6cd5\uff1a\u4f7f\u7528HttpClient<\/code>\u5b9e\u4f8b\u6267\u884c\u8bf7\u6c42\uff0c\u5e76\u83b7\u53d6\u54cd\u5e94\u3002<\/li>\n<\/ol>\n\n\n\n
          <\/p>\n\n\n\n
          CloseableHttpResponse response = httpClient.execute(httpGet);\n<\/code><\/pre>\n\n\n\n
            \n
          1. \u5904\u7406\u54cd\u5e94<\/strong>\uff1a\u4ece\u54cd\u5e94\u4e2d\u83b7\u53d6\u72b6\u6001\u7801\u3001\u54cd\u5e94\u5934\u3001\u54cd\u5e94\u4f53\u7b49\u4fe1\u606f\u3002<\/li>\n<\/ol>\n\n\n\n
            <\/p>\n\n\n\n
            try {\n    \/\/ \u83b7\u53d6\u72b6\u6001\u7801\n    int statusCode = response.getStatusLine().getStatusCode();\n    System.out.println(\"Status Code: \" + statusCode);\n\n    \/\/ \u83b7\u53d6\u54cd\u5e94\u5934\n    Header[] headers = response.getAllHeaders();\n    for (Header header : headers) {\n        System.out.println(header.getName() + \": \" + header.getValue());\n    }\n\n    \/\/ \u83b7\u53d6\u54cd\u5e94\u4f53\n    HttpEntity entity = response.getEntity();\n    if (entity!= null) {\n        String responseBody = EntityUtils.toString(entity, \"UTF-8\");\n        System.out.println(\"Response Body: \" + responseBody);\n    }\n} finally {\n    \/\/ \u5173\u95ed\u54cd\u5e94\u548c\u5ba2\u6237\u7aef\n    response.close();\n    httpClient.close();\n}<\/code><\/pre>\n\n\n\n
            2\u3001\u6848\u4f8b<\/h1>\n\n\n\n
            2.1 Get\u65b9\u6cd5\u6848\u4f8b<\/h2>\n\n\n\n
            \/**\n     * \u6d4b\u8bd5\u901a\u8fc7httpclient\u53d1\u9001GET\u65b9\u5f0f\u7684\u8bf7\u6c42\n     *\/\n    public void testGET() throws Exception{\n        \/\/\u521b\u5efahttpclient\u5bf9\u8c61\n        CloseableHttpClient httpClient = HttpClients.createDefault();\n\n        \/\/\u521b\u5efa\u8bf7\u6c42\u5bf9\u8c61\n        HttpGet httpGet = new HttpGet(\"http:\/\/localhost:8080\/user\/shop\/status\");\n\n        \/\/\u53d1\u9001\u8bf7\u6c42\uff0c\u63a5\u53d7\u54cd\u5e94\u7ed3\u679c\n        CloseableHttpResponse response = httpClient.execute(httpGet);\n\n        \/\/\u83b7\u53d6\u670d\u52a1\u7aef\u8fd4\u56de\u7684\u72b6\u6001\u7801\n        int statusCode = response.getStatusLine().getStatusCode();\n        System.out.println(\"\u670d\u52a1\u7aef\u8fd4\u56de\u7684\u72b6\u6001\u7801\u4e3a\uff1a\" + statusCode);\n\n        HttpEntity entity = response.getEntity();\n        String body = EntityUtils.toString(entity);\n        System.out.println(\"\u670d\u52a1\u7aef\u8fd4\u56de\u7684\u6570\u636e\u4e3a\uff1a\" + body);\n\n        \/\/\u5173\u95ed\u8d44\u6e90\n        response.close();\n        httpClient.close();\n    }\n}<\/code><\/pre>\n\n\n\n
            2.2 Post\u65b9\u6cd5\u8bf7\u6c42\uff1a<\/h2>\n\n\n\n
            \u76f8\u6bd4GET\u8bf7\u6c42\u6765\u8bf4\uff0cPOST\u8bf7\u6c42\u82e5\u643a\u5e26\u53c2\u6570\u9700\u8981\u5c01\u88c5\u8bf7\u6c42\u4f53\u5bf9\u8c61\uff0c\u5e76\u5c06\u8be5\u5bf9\u8c61\u8bbe\u7f6e\u5728\u8bf7\u6c42\u5bf9\u8c61\u4e2d\u3002<\/p>\n\n\n\n
            public void testPOST() throws Exception{\n        \/\/ \u521b\u5efahttpclient\u5bf9\u8c61\n        CloseableHttpClient httpClient = HttpClients.createDefault();\n\n        \/\/\u521b\u5efa\u8bf7\u6c42\u5bf9\u8c61\n        HttpPost httpPost = new HttpPost(\"http:\/\/localhost:8080\/admin\/employee\/login\");\n\n        JSONObject jsonObject = new JSONObject();\n        jsonObject.put(\"username\",\"admin\");\n        jsonObject.put(\"password\",\"123456\");\n\n        StringEntity entity = new StringEntity(jsonObject.toString());\n        \/\/\u6307\u5b9a\u8bf7\u6c42\u7f16\u7801\u65b9\u5f0f\n        entity.setContentEncoding(\"utf-8\");\n        \/\/\u6570\u636e\u683c\u5f0f\n        entity.setContentType(\"application\/json\");\n        httpPost.setEntity(entity);\n\n        \/\/\u53d1\u9001\u8bf7\u6c42\n        CloseableHttpResponse response = httpClient.execute(httpPost);\n\n        \/\/\u89e3\u6790\u8fd4\u56de\u7ed3\u679c\n        int statusCode = response.getStatusLine().getStatusCode();\n        System.out.println(\"\u54cd\u5e94\u7801\u4e3a\uff1a\" + statusCode);\n\n        HttpEntity entity1 = response.getEntity();\n        String body = EntityUtils.toString(entity1);\n        System.out.println(\"\u54cd\u5e94\u6570\u636e\u4e3a\uff1a\" + body);\n\n        \/\/\u5173\u95ed\u8d44\u6e90\n        response.close();\n        httpClient.close();\n    }<\/code><\/pre>\n\n\n\n
            <\/p>\n","protected":false},"excerpt":{"rendered":"
            1\u3001\u57fa\u672c\u4f7f\u7528\u6b65\u9aa4 2\u3001\u6848\u4f8b 2.1 Get\u65b9\u6cd5\u6848\u4f8b 2.2 Post\u65b9\u6cd5\u8bf7\u6c42\uff1a \u76f8\u6bd4GET\u8bf7\u6c42\u6765\u8bf4\uff0cPOST\u8bf7 […]<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[37],"tags":[25,68],"class_list":["post-705","post","type-post","status-publish","format-standard","hentry","category-javaweblist","tag-java","tag-68"],"_links":{"self":[{"href":"http:\/\/www.cmd137blog.top\/index.php?rest_route=\/wp\/v2\/posts\/705","targetHints":{"allow":["GET"]}}],"collection":[{"href":"http:\/\/www.cmd137blog.top\/index.php?rest_route=\/wp\/v2\/posts"}],"about":[{"href":"http:\/\/www.cmd137blog.top\/index.php?rest_route=\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"http:\/\/www.cmd137blog.top\/index.php?rest_route=\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"http:\/\/www.cmd137blog.top\/index.php?rest_route=%2Fwp%2Fv2%2Fcomments&post=705"}],"version-history":[{"count":1,"href":"http:\/\/www.cmd137blog.top\/index.php?rest_route=\/wp\/v2\/posts\/705\/revisions"}],"predecessor-version":[{"id":706,"href":"http:\/\/www.cmd137blog.top\/index.php?rest_route=\/wp\/v2\/posts\/705\/revisions\/706"}],"wp:attachment":[{"href":"http:\/\/www.cmd137blog.top\/index.php?rest_route=%2Fwp%2Fv2%2Fmedia&parent=705"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"http:\/\/www.cmd137blog.top\/index.php?rest_route=%2Fwp%2Fv2%2Fcategories&post=705"},{"taxonomy":"post_tag","embeddable":true,"href":"http:\/\/www.cmd137blog.top\/index.php?rest_route=%2Fwp%2Fv2%2Ftags&post=705"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}