{"id":178638,"date":"2024-11-08T19:38:19","date_gmt":"2024-11-08T11:38:19","guid":{"rendered":"https:\/\/server.hk\/cnblog\/178638\/"},"modified":"2024-11-08T19:38:20","modified_gmt":"2024-11-08T11:38:20","slug":"%e5%a6%82%e4%bd%95%e4%bf%ae%e5%be%a9postgresql%e9%8c%af%e8%aa%a4%e4%bb%a3%e7%a2%bc%ef%bc%9a08001-sqlclient_unable_to_establish_sqlconnection%ef%bc%9f","status":"publish","type":"post","link":"https:\/\/server.hk\/cnblog\/178638\/","title":{"rendered":"\u5982\u4f55\u4fee\u5fa9PostgreSQL\u932f\u8aa4\u4ee3\u78bc\uff1a08001 &#8211; sqlclient_unable_to_establish_sqlconnection\uff1f"},"content":{"rendered":"<h1 id=\"%e5%a6%82%e4%bd%95%e4%bf%ae%e5%be%a9postgresql%e9%8c%af%e8%aa%a4%e4%bb%a3%e7%a2%bc%ef%bc%9a08001-sqlclient_unable_to_establish_sqlconnection%ef%bc%9f-cJdELMVTHc\">\u5982\u4f55\u4fee\u5fa9PostgreSQL\u932f\u8aa4\u4ee3\u78bc\uff1a08001 &#8211; sqlclient_unable_to_establish_sqlconnection\uff1f<\/h1>\n<p>\u5728\u4f7f\u7528PostgreSQL\u6578\u64da\u5eab\u6642\uff0c\u958b\u767c\u8005\u548c\u7cfb\u7d71\u7ba1\u7406\u54e1\u53ef\u80fd\u6703\u9047\u5230\u5404\u7a2e\u932f\u8aa4\u4ee3\u78bc\uff0c\u5176\u4e2d\u4e4b\u4e00\u662f08001\uff0c\u9019\u901a\u5e38\u8868\u793aSQL\u5ba2\u6236\u7aef\u7121\u6cd5\u5efa\u7acbSQL\u9023\u63a5\u3002\u9019\u500b\u554f\u984c\u53ef\u80fd\u7531\u591a\u7a2e\u539f\u56e0\u5f15\u8d77\uff0c\u5305\u62ec\u7db2\u7d61\u914d\u7f6e\u932f\u8aa4\u3001\u6578\u64da\u5eab\u670d\u52d9\u672a\u555f\u52d5\u6216\u8a8d\u8b49\u554f\u984c\u7b49\u3002\u672c\u6587\u5c07\u63a2\u8a0e\u5982\u4f55\u8a3a\u65b7\u548c\u4fee\u5fa9\u9019\u4e00\u932f\u8aa4\u3002<\/p>\n<h2 id=\"%e9%8c%af%e8%aa%a4%e4%bb%a3%e7%a2%bc08001%e7%9a%84%e5%b8%b8%e8%a6%8b%e5%8e%9f%e5%9b%a0-cJdELMVTHc\">\u932f\u8aa4\u4ee3\u78bc08001\u7684\u5e38\u898b\u539f\u56e0<\/h2>\n<ul>\n<li><strong>\u6578\u64da\u5eab\u670d\u52d9\u672a\u555f\u52d5\uff1a<\/strong>\u5982\u679cPostgreSQL\u670d\u52d9\u672a\u904b\u884c\uff0c\u5ba2\u6236\u7aef\u5c07\u7121\u6cd5\u9023\u63a5\u5230\u6578\u64da\u5eab\u3002<\/li>\n<li><strong>\u7db2\u7d61\u554f\u984c\uff1a<\/strong>\u9632\u706b\u7246\u6216\u8def\u7531\u5668\u7684\u914d\u7f6e\u53ef\u80fd\u6703\u963b\u6b62\u5ba2\u6236\u7aef\u8207\u6578\u64da\u5eab\u4e4b\u9593\u7684\u901a\u4fe1\u3002<\/li>\n<li><strong>\u9023\u63a5\u5b57\u7b26\u4e32\u932f\u8aa4\uff1a<\/strong>\u9023\u63a5\u5b57\u7b26\u4e32\u4e2d\u7684\u4e3b\u6a5f\u540d\u3001\u7aef\u53e3\u865f\u6216\u6578\u64da\u5eab\u540d\u7a31\u4e0d\u6b63\u78ba\uff0c\u5c07\u5c0e\u81f4\u9023\u63a5\u5931\u6557\u3002<\/li>\n<li><strong>\u8a8d\u8b49\u554f\u984c\uff1a<\/strong>\u7528\u6236\u540d\u6216\u5bc6\u78bc\u4e0d\u6b63\u78ba\uff0c\u6216\u8005\u7528\u6236\u6c92\u6709\u8db3\u5920\u7684\u6b0a\u9650\u8a2a\u554f\u6578\u64da\u5eab\u3002<\/li>\n<\/ul>\n<h2 id=\"%e8%a8%ba%e6%96%b7%e6%ad%a5%e9%a9%9f-cJdELMVTHc\">\u8a3a\u65b7\u6b65\u9a5f<\/h2>\n<p>\u5728\u4fee\u5fa908001\u932f\u8aa4\u4e4b\u524d\uff0c\u9996\u5148\u9700\u8981\u9032\u884c\u4e00\u4e9b\u8a3a\u65b7\u6b65\u9a5f\u4f86\u78ba\u5b9a\u554f\u984c\u7684\u6839\u6e90\uff1a<\/p>\n<h3 id=\"1-%e6%aa%a2%e6%9f%a5postgresql%e6%9c%8d%e5%8b%99%e7%8b%80%e6%85%8b-cJdELMVTHc\">1. \u6aa2\u67e5PostgreSQL\u670d\u52d9\u72c0\u614b<\/h3>\n<pre><code>sudo systemctl status postgresql<\/code><\/pre>\n<p>\u78ba\u4fddPostgreSQL\u670d\u52d9\u6b63\u5728\u904b\u884c\u3002\u5982\u679c\u670d\u52d9\u672a\u555f\u52d5\uff0c\u53ef\u4ee5\u4f7f\u7528\u4ee5\u4e0b\u547d\u4ee4\u555f\u52d5\uff1a<\/p>\n<pre><code>sudo systemctl start postgresql<\/code><\/pre>\n<h3 id=\"2-%e9%a9%97%e8%ad%89%e9%80%a3%e6%8e%a5%e5%ad%97%e7%ac%a6%e4%b8%b2-cJdELMVTHc\">2. \u9a57\u8b49\u9023\u63a5\u5b57\u7b26\u4e32<\/h3>\n<p>\u6aa2\u67e5\u61c9\u7528\u7a0b\u5e8f\u4e2d\u7684\u9023\u63a5\u5b57\u7b26\u4e32\uff0c\u78ba\u4fdd\u4e3b\u6a5f\u540d\u3001\u7aef\u53e3\u865f\u3001\u6578\u64da\u5eab\u540d\u7a31\u3001\u7528\u6236\u540d\u548c\u5bc6\u78bc\u5747\u6b63\u78ba\u7121\u8aa4\u3002\u4f8b\u5982\uff1a<\/p>\n<pre><code>postgresql:\/\/username:password@hostname:port\/dbname<\/code><\/pre>\n<h3 id=\"3-%e6%b8%ac%e8%a9%a6%e7%b6%b2%e7%b5%a1%e9%80%a3%e6%8e%a5-cJdELMVTHc\">3. \u6e2c\u8a66\u7db2\u7d61\u9023\u63a5<\/h3>\n<p>\u4f7f\u7528ping\u547d\u4ee4\u6aa2\u67e5\u5ba2\u6236\u7aef\u8207\u6578\u64da\u5eab\u670d\u52d9\u5668\u4e4b\u9593\u7684\u9023\u63a5\uff1a<\/p>\n<pre><code>ping hostname<\/code><\/pre>\n<p>\u5982\u679c\u7121\u6cd5ping\u901a\uff0c\u5247\u53ef\u80fd\u5b58\u5728\u7db2\u7d61\u554f\u984c\u6216\u9632\u706b\u7246\u914d\u7f6e\u554f\u984c\u3002<\/p>\n<h3 id=\"4-%e6%aa%a2%e6%9f%a5%e9%98%b2%e7%81%ab%e7%89%86%e8%a8%ad%e7%bd%ae-cJdELMVTHc\">4. \u6aa2\u67e5\u9632\u706b\u7246\u8a2d\u7f6e<\/h3>\n<p>\u78ba\u4fdd\u9632\u706b\u7246\u5141\u8a31PostgreSQL\u7684\u9ed8\u8a8d\u7aef\u53e3\uff08\u901a\u5e38\u662f5432\uff09\u901a\u904e\u3002\u53ef\u4ee5\u4f7f\u7528\u4ee5\u4e0b\u547d\u4ee4\u6aa2\u67e5\u9632\u706b\u7246\u898f\u5247\uff1a<\/p>\n<pre><code>sudo ufw status<\/code><\/pre>\n<p>\u5982\u679c\u9700\u8981\uff0c\u53ef\u4ee5\u4f7f\u7528\u4ee5\u4e0b\u547d\u4ee4\u958b\u653e\u7aef\u53e3\uff1a<\/p>\n<pre><code>sudo ufw allow 5432<\/code><\/pre>\n<h3 id=\"5-%e6%aa%a2%e6%9f%a5%e7%94%a8%e6%88%b6%e6%ac%8a%e9%99%90-cJdELMVTHc\">5. \u6aa2\u67e5\u7528\u6236\u6b0a\u9650<\/h3>\n<p>\u78ba\u4fdd\u7528\u6236\u64c1\u6709\u8a2a\u554f\u6578\u64da\u5eab\u7684\u6b0a\u9650\u3002\u53ef\u4ee5\u4f7f\u7528\u4ee5\u4e0bSQL\u67e5\u8a62\u6aa2\u67e5\u7528\u6236\u6b0a\u9650\uff1a<\/p>\n<pre><code>SELECT * FROM pg_roles;<\/code><\/pre>\n<h2 id=\"%e4%bf%ae%e5%be%a9%e6%ad%a5%e9%a9%9f-cJdELMVTHc\">\u4fee\u5fa9\u6b65\u9a5f<\/h2>\n<p>\u6839\u64da\u8a3a\u65b7\u7d50\u679c\uff0c\u60a8\u53ef\u4ee5\u63a1\u53d6\u4ee5\u4e0b\u63aa\u65bd\u4f86\u4fee\u5fa908001\u932f\u8aa4\uff1a<\/p>\n<h3 id=\"1-%e5%95%9f%e5%8b%95postgresql%e6%9c%8d%e5%8b%99-cJdELMVTHc\">1. \u555f\u52d5PostgreSQL\u670d\u52d9<\/h3>\n<p>\u5982\u679c\u670d\u52d9\u672a\u904b\u884c\uff0c\u8acb\u555f\u52d5\u5b83\u3002<\/p>\n<h3 id=\"2-%e6%9b%b4%e6%96%b0%e9%80%a3%e6%8e%a5%e5%ad%97%e7%ac%a6%e4%b8%b2-cJdELMVTHc\">2. \u66f4\u65b0\u9023\u63a5\u5b57\u7b26\u4e32<\/h3>\n<p>\u78ba\u4fdd\u9023\u63a5\u5b57\u7b26\u4e32\u4e2d\u7684\u6240\u6709\u4fe1\u606f\u90fd\u662f\u6b63\u78ba\u7684\uff0c\u7279\u5225\u662f\u7528\u6236\u540d\u548c\u5bc6\u78bc\u3002<\/p>\n<h3 id=\"3-%e9%85%8d%e7%bd%ae%e9%98%b2%e7%81%ab%e7%89%86-cJdELMVTHc\">3. \u914d\u7f6e\u9632\u706b\u7246<\/h3>\n<p>\u5982\u679c\u9632\u706b\u7246\u963b\u6b62\u4e86\u9023\u63a5\uff0c\u8acb\u6839\u64da\u9700\u8981\u9032\u884c\u914d\u7f6e\u3002<\/p>\n<h3 id=\"4-%e6%9b%b4%e6%96%b0%e7%94%a8%e6%88%b6%e6%ac%8a%e9%99%90-cJdELMVTHc\">4. \u66f4\u65b0\u7528\u6236\u6b0a\u9650<\/h3>\n<p>\u5982\u679c\u7528\u6236\u6b0a\u9650\u4e0d\u8db3\uff0c\u8acb\u4f7f\u7528\u4ee5\u4e0b\u547d\u4ee4\u6388\u4e88\u5fc5\u8981\u7684\u6b0a\u9650\uff1a<\/p>\n<pre><code>GRANT ALL PRIVILEGES ON DATABASE dbname TO username;<\/code><\/pre>\n<h2 id=\"%e7%b8%bd%e7%b5%90-cJdELMVTHc\">\u7e3d\u7d50<\/h2>\n<p>PostgreSQL\u932f\u8aa4\u4ee3\u78bc08001\u901a\u5e38\u662f\u7531\u65bc\u6578\u64da\u5eab\u670d\u52d9\u672a\u555f\u52d5\u3001\u7db2\u7d61\u554f\u984c\u3001\u9023\u63a5\u5b57\u7b26\u4e32\u932f\u8aa4\u6216\u8a8d\u8b49\u554f\u984c\u5f15\u8d77\u7684\u3002\u901a\u904e\u4e0a\u8ff0\u8a3a\u65b7\u548c\u4fee\u5fa9\u6b65\u9a5f\uff0c\u60a8\u61c9\u8a72\u80fd\u5920\u6709\u6548\u5730\u89e3\u6c7a\u6b64\u554f\u984c\u3002\u5c0d\u65bc\u9700\u8981\u7a69\u5b9a\u548c\u9ad8\u6548\u7684\u6578\u64da\u5eab\u89e3\u6c7a\u65b9\u6848\u7684\u7528\u6236\uff0c\u9078\u64c7\u5408\u9069\u7684 <a href=\"https:\/\/server.hk\">VPS<\/a> \u6216 <a href=\"https:\/\/server.hk\">\u9999\u6e2f\u4f3a\u670d\u5668<\/a> \u4f86\u904b\u884cPostgreSQL\u5c07\u662f\u660e\u667a\u7684\u9078\u64c7\u3002\u4e86\u89e3\u66f4\u591a\u4fe1\u606f\uff0c\u8acb\u8a2a\u554f\u6211\u5011\u7684\u7db2\u7ad9\u3002<\/p>\n","protected":false},"excerpt":{"rendered":"<p>\u4e86\u89e3\u5982\u4f55\u4fee\u5fa9PostgreSQL\u932f\u8aa4\u4ee3\u78bc08001\uff0c\u89e3\u6c7asqlclient\u7121\u6cd5\u5efa\u7acbSQL\u9023\u63a5\u7684\u554f\u984c\uff0c\u63d0\u5347\u6578\u64da\u5eab\u9023\u63a5\u7a69\u5b9a\u6027\u3002<\/p>\n","protected":false},"author":0,"featured_media":0,"comment_status":"closed","ping_status":"","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[101],"tags":[],"class_list":["post-178638","post","type-post","status-publish","format-standard","hentry","category-database"],"_links":{"self":[{"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/178638","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/types\/post"}],"replies":[{"embeddable":true,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/comments?post=178638"}],"version-history":[{"count":1,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/178638\/revisions"}],"predecessor-version":[{"id":178639,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/178638\/revisions\/178639"}],"wp:attachment":[{"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/media?parent=178638"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/categories?post=178638"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/tags?post=178638"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}