{"id":35613,"date":"2024-11-26T16:57:59","date_gmt":"2024-11-26T08:57:59","guid":{"rendered":"https:\/\/fwq.ai\/blog\/35613\/"},"modified":"2024-11-26T16:57:59","modified_gmt":"2024-11-26T08:57:59","slug":"java%e7%88%ac%e8%99%ab%e7%99%bb%e5%bd%95%e6%80%8e%e4%b9%88%e5%81%9a-java%e7%88%ac%e8%99%ab%e7%99%bb%e5%bd%95%e9%aa%8c%e8%af%81%e6%80%8e%e4%b9%88%e5%81%9a%e7%9a%84","status":"publish","type":"post","link":"https:\/\/fwq.ai\/blog\/35613\/","title":{"rendered":"java\u722c\u866b\u767b\u5f55\u600e\u4e48\u505a java\u722c\u866b\u767b\u5f55\u9a8c\u8bc1\u600e\u4e48\u505a\u7684"},"content":{"rendered":"<blockquote><p>\n  java \u722c\u866b\u767b\u5f55\u6d89\u53ca\u4ee5\u4e0b\u6b65\u9aa4\uff1a\u83b7\u53d6\u767b\u5f55\u9875\u9762 url\u3001\u63d0\u4ea4\u767b\u5f55\u8868\u5355\u3001\u5904\u7406\u91cd\u5b9a\u5411\u3001\u9a8c\u8bc1\u767b\u5f55\u3002\u4f7f\u7528 httpurlconnection\uff0c\u53ef\u8bbe\u7f6e\u8bf7\u6c42\u65b9\u6cd5\u4e3a post\uff0c\u5199\u5165 post \u6570\u636e\u3001\u83b7\u53d6\u54cd\u5e94\u5e76\u89e3\u6790\u5185\u5bb9\u3002\u4f7f\u7528 apache httpclient\uff0c\u53ef\u521b\u5efa post \u8bf7\u6c42\u5bf9\u8c61\uff0c\u8bbe\u7f6e post \u6570\u636e\uff0c\u5e76\u53d1\u9001\u8bf7\u6c42\u83b7\u53d6\u54cd\u5e94\u3002\n<\/p><\/blockquote>\n<p><img decoding=\"async\" src=\"https:\/\/img.php.cn\/upload\/article\/202411\/04\/2024110407092483239.jpg\" class=\"aligncenter\" title=\"java\u722c\u866b\u767b\u5f55\u600e\u4e48\u505a java\u722c\u866b\u767b\u5f55\u9a8c\u8bc1\u600e\u4e48\u505a\u7684\u63d2\u56fe\" alt=\"java\u722c\u866b\u767b\u5f55\u600e\u4e48\u505a java\u722c\u866b\u767b\u5f55\u9a8c\u8bc1\u600e\u4e48\u505a\u7684\u63d2\u56fe\" \/><\/p>\n<p><strong>\u5982\u4f55\u8fdb\u884c Java \u722c\u866b\u767b\u5f55<\/strong><\/p>\n<p><strong>\u6982\u8ff0<\/strong><\/p>\n<p>Java \u722c\u866b\u767b\u5f55\u662f\u6307\u4f7f\u7528 Java \u8bed\u8a00\u7f16\u5199\u7684\u722c\u866b\u7a0b\u5e8f\uff0c\u80fd\u591f\u81ea\u52a8\u767b\u5f55\u5230\u76ee\u6807\u7f51\u7ad9\u5e76\u83b7\u53d6\u53d7\u4fdd\u62a4\u7684\u5185\u5bb9\u3002\u5b9e\u73b0\u8fd9\u4e00\u529f\u80fd\u9700\u8981\u4ee5\u4e0b\u6b65\u9aa4\uff1a<\/p>\n<p><strong>1. \u83b7\u53d6\u767b\u5f55\u9875\u9762 URL<\/strong><\/p>\n<p><span>\u7acb\u5373\u5b66\u4e60<\/span>\u201c\u201d\uff1b<\/p>\n<p>\u9996\u5148\uff0c\u786e\u5b9a\u76ee\u6807\u7f51\u7ad9\u7684\u767b\u5f55\u9875\u9762 URL\u3002\u8fd9\u53ef\u4ee5\u901a\u8fc7\u624b\u52a8\u6d4f\u89c8\u7f51\u7ad9\u6216\u4f7f\u7528\u6d4f\u89c8\u5668\u5f00\u53d1\u8005\u5de5\u5177\u6765\u83b7\u53d6\u3002<\/p>\n<p><strong>2. \u63d0\u4ea4\u767b\u5f55\u8868\u5355<\/strong><\/p>\n<p>\u767b\u5f55\u9875\u9762\u901a\u5e38\u5305\u542b\u4e00\u4e2a\u8868\u5355\uff0c\u7528\u4e8e\u6536\u96c6\u7528\u6237\u51ed\u8bc1\u3002\u722c\u866b\u7a0b\u5e8f\u9700\u8981\u83b7\u53d6\u6b64\u8868\u5355\u5e76\u63d0\u4ea4\u7528\u6237\u767b\u5f55\u51ed\u8bc1\u3002\u53ef\u4ee5\u4f7f\u7528 HttpURLConnection \u6216\u7b2c\u4e09\u65b9\u5e93\uff08\u5982 Apache HttpClient\uff09\u6765\u5b9e\u73b0\u6b64\u76ee\u7684\u3002<\/p>\n<p><strong>3. \u5904\u7406\u91cd\u5b9a\u5411<\/strong><\/p>\n<p>\u7f51\u7ad9\u901a\u5e38\u4f1a\u5728\u6210\u529f\u767b\u5f55\u540e\u91cd\u5b9a\u5411\u5230\u5176\u4ed6\u9875\u9762\u3002\u722c\u866b\u7a0b\u5e8f\u9700\u8981\u5904\u7406\u8fd9\u4e9b\u91cd\u5b9a\u5411\uff0c\u4ee5\u786e\u4fdd\u6b63\u786e\u83b7\u53d6\u53d7\u4fdd\u62a4\u7684\u5185\u5bb9\u3002<\/p>\n<p><strong>4. \u9a8c\u8bc1\u767b\u5f55<\/strong><\/p>\n<p>\u67d0\u4e9b\u7f51\u7ad9\u53ef\u80fd\u4f1a\u5b9e\u65bd\u989d\u5916\u7684\u5b89\u5168\u63aa\u65bd\uff0c\u4f8b\u5982\u53cc\u56e0\u7d20\u8eab\u4efd\u9a8c\u8bc1\u6216\u9a8c\u8bc1\u7801\u3002\u722c\u866b\u7a0b\u5e8f\u53ef\u80fd\u9700\u8981\u6267\u884c\u8fd9\u4e9b\u9644\u52a0\u6b65\u9aa4\u624d\u80fd\u6210\u529f\u767b\u5f55\u3002<\/p>\n<p><strong>\u8be6\u7ec6\u6b65\u9aa4<\/strong><\/p>\n<p><strong>\u4f7f\u7528 HttpURLConnection<\/strong><\/p>\n<pre>\/\/ \u5bfc\u5165\u5fc5\u8981\u7684\u5e93\nimport java.io.*;\nimport java.net.HttpURLConnection;\nimport java.net.URL;\nimport java.nio.charset.StandardCharsets;\n\npublic class JavaWebCrawlerLogin {\n\n    public static void main(String[] args) {\n        \/\/ \u8bbe\u7f6e\u767b\u5f55 URL\n        String loginUrl = \"https:\/\/example.com\/login\";\n\n        \/\/ \u521b\u5efa HttpURLConnection \u5bf9\u8c61\n        HttpURLConnection connection = (HttpURLConnection) new URL(loginUrl).openConnection();\n        connection.setRequestMethod(\"POST\");  \/\/ \u8bbe\u7f6e\u8bf7\u6c42\u65b9\u6cd5\u4e3a POST\n        connection.setDoOutput(true);  \/\/ \u5141\u8bb8\u8f93\u51fa\u6570\u636e\n\n        \/\/ \u521b\u5efa POST \u6570\u636e\n        String postData = \"username=user1&amp;password=password1\";\n\n        \/\/ \u5199\u5165 POST \u6570\u636e\n        OutputStreamWriter writer = new OutputStreamWriter(connection.getOutputStream(), StandardCharsets.UTF_8);\n        writer.write(postData);\n        writer.flush();\n\n        \/\/ \u83b7\u53d6\u54cd\u5e94\n        int responseCode = connection.getResponseCode();\n\n        \/\/ \u5982\u679c\u767b\u5f55\u6210\u529f\uff0c\u5219\u89e3\u6790\u54cd\u5e94\u5e76\u83b7\u53d6\u53d7\u4fdd\u62a4\u7684\u5185\u5bb9\n        if (responseCode == HttpURLConnection.HTTP_OK) {\n            \/\/ \u83b7\u53d6\u54cd\u5e94\u5185\u5bb9\n            BufferedReader reader = new BufferedReader(new InputStreamReader(connection.getInputStream()));\n            String response = reader.readLine();  \/\/ \u8bfb\u53d6\u54cd\u5e94\u7684\u7b2c\u4e00\u884c\n\n            \/\/ \u89e3\u6790\u54cd\u5e94\uff0c\u63d0\u53d6\u53d7\u4fdd\u62a4\u7684\u5185\u5bb9\n            \/\/ ...\n        } else {\n            \/\/ \u5904\u7406\u767b\u5f55\u5931\u8d25\u7684\u60c5\u51b5\n            \/\/ ...\n        }\n    }\n}<\/pre>\n<p> \u767b\u5f55\u540e\u590d\u5236 <\/p>\n<p><strong>\u4f7f\u7528 Apache HttpClient<\/strong><\/p>\n<pre>\/\/ \u5bfc\u5165\u5fc5\u8981\u7684\u5e93\nimport org.apache.http.client.HttpClient;\nimport org.apache.http.client.methods.HttpPost;\nimport org.apache.http.entity.StringEntity;\nimport org.apache.http.impl.client.HttpClients;\n\npublic class JavaWebCrawlerLoginWithHttpClient {\n\n    public static void main(String[] args) {\n        \/\/ \u8bbe\u7f6e\u767b\u5f55 URL\n        String loginUrl = \"https:\/\/example.com\/login\";\n\n        \/\/ \u521b\u5efa HttpClient \u5bf9\u8c61\n        HttpClient httpClient = HttpClients.createDefault();\n\n        \/\/ \u521b\u5efa POST \u8bf7\u6c42\u5bf9\u8c61\n        HttpPost post = new HttpPost(loginUrl);\n\n        \/\/ \u8bbe\u7f6e POST \u6570\u636e\n        StringEntity postData = new StringEntity(\"username=user1&amp;password=password1\");\n        post.setEntity(postData);\n\n        \/\/ \u53d1\u9001 POST \u8bf7\u6c42\u5e76\u83b7\u53d6\u54cd\u5e94\n        HttpResponse response = httpClient.execute(post);\n\n        \/\/ \u5982\u679c\u767b\u5f55\u6210\u529f\uff0c\u5219\u89e3\u6790\u54cd\u5e94\u5e76\u83b7\u53d6\u53d7\u4fdd\u62a4\u7684\u5185\u5bb9\n        if (response.getStatusLine().getStatusCode() == HttpStatus.SC_OK) {\n            \/\/ \u83b7\u53d6\u54cd\u5e94\u5185\u5bb9\n            HttpEntity entity = response.getEntity();\n            String response = EntityUtils.toString(entity);  \/\/ \u5c06\u54cd\u5e94\u5185\u5bb9\u8f6c\u6362\u4e3a\u5b57\u7b26\u4e32\n\n            \/\/ \u89e3\u6790\u54cd\u5e94\uff0c\u63d0\u53d6\u53d7\u4fdd\u62a4\u7684\u5185\u5bb9\n            \/\/ ...\n        } else {\n            \/\/ \u5904\u7406\u767b\u5f55\u5931\u8d25\u7684\u60c5\u51b5\n            \/\/ ...\n        }\n    }\n}<\/pre>\n<p> \u767b\u5f55\u540e\u590d\u5236 <\/p>\n<p>\u4ee5\u4e0a\u5c31\u662f\u767b\u5f55\u600e\u4e48\u505a java\u722c\u866b\u767b\u5f55\u9a8c\u8bc1\u600e\u4e48\u505a\u7684\u7684\u8be6\u7ec6\u5185\u5bb9\uff0c\u66f4\u591a\u8bf7\u5173\u6ce8\u7c73\u4e91\u5176\u5b83\u76f8\u5173\u6587\u7ae0\uff01<\/p>\n","protected":false},"excerpt":{"rendered":"<p>java \u722c\u866b\u767b\u5f55\u6d89\u53ca\u4ee5\u4e0b\u6b65\u9aa4\uff1a\u83b7\u53d6\u767b\u5f55\u9875\u9762 url\u3001\u63d0\u4ea4\u767b\u5f55\u8868\u5355\u3001\u5904\u7406\u91cd\u5b9a\u5411\u3001\u9a8c\u8bc1\u767b\u5f55\u3002\u4f7f\u7528 httpurlconnection\uff0c\u53ef\u8bbe\u7f6e\u8bf7\u6c42\u65b9\u6cd5\u4e3a post\uff0c\u5199\u5165 post \u6570\u636e\u3001\u83b7\u53d6\u54cd\u5e94\u5e76\u89e3\u6790\u5185\u5bb9\u3002\u4f7f\u7528 apache httpclient\uff0c\u53ef\u521b\u5efa post \u8bf7\u6c42\u5bf9\u8c61\uff0c\u8bbe\u7f6e post \u6570\u636e\uff0c\u5e76\u53d1\u9001\u8bf7\u6c42\u83b7\u53d6\u54cd\u5e94\u3002 \u5982\u4f55\u8fdb\u884c Java \u722c\u866b\u767b\u5f55 \u6982\u8ff0 Java \u722c\u866b\u767b\u5f55\u662f\u6307\u4f7f\u7528 Java \u8bed\u8a00\u7f16\u5199\u7684\u722c\u866b\u7a0b\u5e8f\uff0c\u80fd\u591f\u81ea\u52a8\u767b\u5f55\u5230\u76ee\u6807\u7f51\u7ad9\u5e76\u83b7\u53d6\u53d7\u4fdd\u62a4\u7684\u5185\u5bb9\u3002\u5b9e\u73b0\u8fd9\u4e00\u529f\u80fd\u9700\u8981\u4ee5\u4e0b\u6b65\u9aa4\uff1a 1. \u83b7\u53d6\u767b\u5f55\u9875\u9762 URL \u7acb\u5373\u5b66\u4e60\u201c\u201d\uff1b \u9996\u5148\uff0c\u786e\u5b9a\u76ee\u6807\u7f51\u7ad9\u7684\u767b\u5f55\u9875\u9762 URL\u3002\u8fd9\u53ef\u4ee5\u901a\u8fc7\u624b\u52a8\u6d4f\u89c8\u7f51\u7ad9\u6216\u4f7f\u7528\u6d4f\u89c8\u5668\u5f00\u53d1\u8005\u5de5\u5177\u6765\u83b7\u53d6\u3002 2. \u63d0\u4ea4\u767b\u5f55\u8868\u5355 \u767b\u5f55\u9875\u9762\u901a\u5e38\u5305\u542b\u4e00\u4e2a\u8868\u5355\uff0c\u7528\u4e8e\u6536\u96c6\u7528\u6237\u51ed\u8bc1\u3002\u722c\u866b\u7a0b\u5e8f\u9700\u8981\u83b7\u53d6\u6b64\u8868\u5355\u5e76\u63d0\u4ea4\u7528\u6237\u767b\u5f55\u51ed\u8bc1\u3002\u53ef\u4ee5\u4f7f\u7528 HttpURLConnection \u6216\u7b2c\u4e09\u65b9\u5e93\uff08\u5982 Apache HttpClient\uff09\u6765\u5b9e\u73b0\u6b64\u76ee\u7684\u3002 3. \u5904\u7406\u91cd\u5b9a\u5411 \u7f51\u7ad9\u901a\u5e38\u4f1a\u5728\u6210\u529f\u767b\u5f55\u540e\u91cd\u5b9a\u5411\u5230\u5176\u4ed6\u9875\u9762\u3002\u722c\u866b\u7a0b\u5e8f\u9700\u8981\u5904\u7406\u8fd9\u4e9b\u91cd\u5b9a\u5411\uff0c\u4ee5\u786e\u4fdd\u6b63\u786e\u83b7\u53d6\u53d7\u4fdd\u62a4\u7684\u5185\u5bb9\u3002 4. \u9a8c\u8bc1\u767b\u5f55 \u67d0\u4e9b\u7f51\u7ad9\u53ef\u80fd\u4f1a\u5b9e\u65bd\u989d\u5916\u7684\u5b89\u5168\u63aa\u65bd\uff0c\u4f8b\u5982\u53cc\u56e0\u7d20\u8eab\u4efd\u9a8c\u8bc1\u6216\u9a8c\u8bc1\u7801\u3002\u722c\u866b\u7a0b\u5e8f\u53ef\u80fd\u9700\u8981\u6267\u884c\u8fd9\u4e9b\u9644\u52a0\u6b65\u9aa4\u624d\u80fd\u6210\u529f\u767b\u5f55\u3002 \u8be6\u7ec6\u6b65\u9aa4 \u4f7f\u7528 HttpURLConnection \/\/ \u5bfc\u5165\u5fc5\u8981\u7684\u5e93 import java.io.*; import java.net.HttpURLConnection; import java.net.URL; import java.nio.charset.StandardCharsets; public class [&hellip;]<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"closed","ping_status":"","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[16],"tags":[],"class_list":["post-35613","post","type-post","status-publish","format-standard","hentry","category-16"],"_links":{"self":[{"href":"https:\/\/fwq.ai\/blog\/wp-json\/wp\/v2\/posts\/35613","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/fwq.ai\/blog\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/fwq.ai\/blog\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/fwq.ai\/blog\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/fwq.ai\/blog\/wp-json\/wp\/v2\/comments?post=35613"}],"version-history":[{"count":0,"href":"https:\/\/fwq.ai\/blog\/wp-json\/wp\/v2\/posts\/35613\/revisions"}],"wp:attachment":[{"href":"https:\/\/fwq.ai\/blog\/wp-json\/wp\/v2\/media?parent=35613"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/fwq.ai\/blog\/wp-json\/wp\/v2\/categories?post=35613"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/fwq.ai\/blog\/wp-json\/wp\/v2\/tags?post=35613"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}