{"id":31613,"date":"2023-06-21T06:08:31","date_gmt":"2024-02-29T08:41:42","guid":{"rendered":"https:\/\/www.silicloud.com\/zh\/blog\/%e7%94%a8java%e8%bf%90%e8%a1%8cpostgresql\/"},"modified":"2024-04-30T09:57:11","modified_gmt":"2024-04-30T01:57:11","slug":"%e7%94%a8java%e8%bf%90%e8%a1%8cpostgresql","status":"publish","type":"post","link":"https:\/\/www.silicloud.com\/zh\/blog\/%e7%94%a8java%e8%bf%90%e8%a1%8cpostgresql\/","title":{"rendered":"\u7528Java\u8fd0\u884cPostgreSQL"},"content":{"rendered":"<p>\u8bd5\u8bd5\u5728Java\u4e2d\u8fd0\u884cPostgreSQL\u3002<\/p>\n<h2>\u73af\u5883<\/h2>\n<ul class=\"post-ul\">\n<li style=\"list-style-type: none;\">\n<ul class=\"post-ul\">macOS Mojave<\/ul>\n<\/li>\n<\/ul>\n<p>&nbsp;<\/p>\n<ul class=\"post-ul\">\n<li style=\"list-style-type: none;\">\n<ul class=\"post-ul\">Eclipse 4.7.3<\/ul>\n<\/li>\n<\/ul>\n<p>&nbsp;<\/p>\n<ul class=\"post-ul\">\n<li style=\"list-style-type: none;\">\n<ul class=\"post-ul\">PostgreSQL 11.4<\/ul>\n<\/li>\n<\/ul>\n<p>&nbsp;<\/p>\n<ul class=\"post-ul\">JDBC Driver 42.2.5\uff08postgresql-42.2.5.jar\uff09<\/ul>\n<h2>\u5f15\u5165JDBC\u9a71\u52a8\u7a0b\u5e8f<\/h2>\n<p>\u8bbf\u95eePostgreSQL\u5173\u7cfb\u6570\u636e\u5e93\u9700\u8981\u4f7f\u7528Java\u7684\u6807\u51c6API\uff0c\u9700\u8981JDBC\u9a71\u52a8\u7a0b\u5e8f\u3002<\/p>\n<p>\u9996\u5148\uff0c\u5f9e\u4e0b\u8f09\u958b\u59cb\u3002<\/p>\n<p>https:\/\/jdbc.postgresql.org\/download.html#current\u7684\u5185\u5bb9\u53ef\u4ee5\u7528\u4ee5\u4e0b\u65b9\u5f0f\u8fdb\u884c\u8868\u8ff0\uff1a<\/p>\n<p>\u5728\u8fd9\u91cc\u4f7f\u7528postgresql-42.2.5.jar\u3002<\/p>\n<p>\u5c06\u5176\u653e\u7f6e\u5728\u6b64\u6b21\u9879\u76ee\u7684\u4efb\u610f\u4f4d\u7f6e\uff08lib\u4e2d\u53ef\u80fd\u66f4\u660e\u786e\u5427\uff1f\uff09<\/p>\n<div><img decoding=\"async\" class=\"post-images\" title=\"\" src=\"https:\/\/cdn.silicloud.com\/blog-img\/blog\/img\/657d0d9537434c4406beb387\/9-0.png\" alt=\"\u30b9\u30af\u30ea\u30fc\u30f3\u30b7\u30e7\u30c3\u30c8 2019-07-23 16.28.17.png\" \/><\/div>\n<p>\u7136\u800c\uff0c\u7531\u4e8e\u65e0\u6cd5\u786e\u5b9a\u5f15\u7528\u7684\u4f4d\u7f6e\uff0c\u6240\u4ee5\u9700\u8981\u8bbe\u7f6e\u8def\u5f84\u3002<\/p>\n<p>\u5982\u679c\u662fMac\u7684\u8bdd<\/p>\n<blockquote><p>\u70b9\u51fbpostgresql-42.2.5.jar\uff0c\u8fdb\u5165\u9879\u76ee\u9009\u9879\u5361 &#8211;&gt; \u5c5e\u6027 &#8211;&gt; Java\u6784\u5efa\u8def\u5f84 &#8211;&gt; \u5e93 &#8211;&gt; \u6dfb\u52a0\u5916\u90e8JAR &#8211;&gt; \u67e5\u627e\u5e76\u6253\u5f00postgresql-42.2.5.jar &#8211;&gt; \u786e\u5b9a\u5e76\u5173\u95ed\u7a97\u53e3<\/p><\/blockquote>\n<p>\u5982\u679c\u53c2\u7167\u5e93\u4e2d\u5f15\u7528\u4e86postgresql-42.2.5.jar\uff0c\u5219\u8868\u793a\u6b63\u5e38\u3002<\/p>\n<div><img decoding=\"async\" class=\"post-images\" title=\"\" src=\"https:\/\/cdn.silicloud.com\/blog-img\/blog\/img\/657d0d9537434c4406beb387\/14-0.png\" alt=\"\u30b9\u30af\u30ea\u30fc\u30f3\u30b7\u30e7\u30c3\u30c8 2019-07-23 16.41.34.png\" \/><\/div>\n<h2>\u7528\u4e8e\u6570\u636e\u5e93<\/h2>\n<p>\u8fd9\u6b21\u6211\u4eec\u5c06\u5168\u90e8\u91cd\u590d\u5229\u7528\u4e4b\u524d\u4f7f\u7528\u8fc7\u7684\u4e1c\u897f\u3002<\/p>\n<p>\u7528\u6237\u8bf7\u770b\u4ee5\u4e0b\u5185\u5bb9\uff1a<\/p>\n<pre class=\"post-pre\"><code><span class=\"n\">customer<\/span><span class=\"o\">=#<\/span> <span class=\"err\">\\<\/span><span class=\"n\">l<\/span>\r\n                                <span class=\"n\">List<\/span> <span class=\"k\">of<\/span> <span class=\"n\">databases<\/span>\r\n   <span class=\"n\">Name<\/span>    <span class=\"o\">|<\/span>    <span class=\"k\">Owner<\/span>    <span class=\"o\">|<\/span> <span class=\"k\">Encoding<\/span> <span class=\"o\">|<\/span> <span class=\"k\">Collate<\/span> <span class=\"o\">|<\/span> <span class=\"n\">Ctype<\/span> <span class=\"o\">|<\/span>   <span class=\"k\">Access<\/span> <span class=\"k\">privileges<\/span>   \r\n<span class=\"c1\">-----------+-------------+----------+---------+-------+-----------------------<\/span>\r\n <span class=\"n\">customer<\/span>  <span class=\"o\">|<\/span> <span class=\"n\">sf213471118<\/span> <span class=\"o\">|<\/span> <span class=\"n\">UTF8<\/span>     <span class=\"o\">|<\/span> <span class=\"k\">C<\/span>       <span class=\"o\">|<\/span> <span class=\"k\">C<\/span>     <span class=\"o\">|<\/span> \r\n\r\n<\/code><\/pre>\n<p>\u4f7f\u7528\u5ba2\u6237\u8868\u7684\u8868\u683c<\/p>\n<pre class=\"post-pre\"><code><span class=\"n\">customer<\/span><span class=\"o\">=#<\/span> <span class=\"err\">\\<\/span><span class=\"n\">d<\/span>\r\n          <span class=\"n\">List<\/span> <span class=\"k\">of<\/span> <span class=\"n\">relations<\/span>\r\n <span class=\"k\">Schema<\/span> <span class=\"o\">|<\/span>   <span class=\"n\">Name<\/span>   <span class=\"o\">|<\/span> <span class=\"k\">Type<\/span>  <span class=\"o\">|<\/span>    <span class=\"k\">Owner<\/span>   \r\n<span class=\"c1\">--------+----------+-------+-------------<\/span>\r\n <span class=\"k\">public<\/span> <span class=\"o\">|<\/span> <span class=\"n\">customer<\/span> <span class=\"o\">|<\/span> <span class=\"k\">table<\/span> <span class=\"o\">|<\/span> <span class=\"n\">sf213471118<\/span>\r\n<\/code><\/pre>\n<p>\u987e\u5ba2\u6570\u636e\u8868\u7684\u5185\u5bb9\u5982\u4e0b\u6240\u793a\u3002<\/p>\n<pre class=\"post-pre\"><code><span class=\"n\">customer<\/span><span class=\"o\">=#<\/span> <span class=\"k\">SELECT<\/span> <span class=\"o\">*<\/span> <span class=\"k\">FROM<\/span> <span class=\"n\">customer<\/span><span class=\"p\">;<\/span>\r\n       <span class=\"n\">id<\/span>        <span class=\"o\">|<\/span>   <span class=\"n\">name<\/span>   <span class=\"o\">|<\/span> <span class=\"n\">gender<\/span> <span class=\"o\">|<\/span> <span class=\"n\">age<\/span> \r\n<span class=\"c1\">-----------------+----------+--------+-----<\/span>\r\n <span class=\"mi\">10001<\/span>           <span class=\"o\">|<\/span> <span class=\"err\">\u7530\u4e2d\u592a\u90ce<\/span> <span class=\"o\">|<\/span> <span class=\"n\">m<\/span>       <span class=\"o\">|<\/span>  <span class=\"mi\">31<\/span>\r\n <span class=\"mi\">10002<\/span>           <span class=\"o\">|<\/span> <span class=\"err\">\u4e2d\u6751\u82b1\u5b50<\/span> <span class=\"o\">|<\/span> <span class=\"n\">w<\/span>       <span class=\"o\">|<\/span>  <span class=\"mi\">44<\/span>\r\n <span class=\"mi\">10003<\/span>           <span class=\"o\">|<\/span> <span class=\"err\">\u4f50\u85e4\u4e00\u90ce<\/span> <span class=\"o\">|<\/span> <span class=\"n\">m<\/span>       <span class=\"o\">|<\/span>  <span class=\"mi\">20<\/span>\r\n <span class=\"mi\">10004<\/span>           <span class=\"o\">|<\/span> <span class=\"err\">\u5185\u7530\u5f69<\/span>   <span class=\"o\">|<\/span> <span class=\"n\">w<\/span>       <span class=\"o\">|<\/span>  <span class=\"mi\">18<\/span>\r\n <span class=\"mi\">10005<\/span>           <span class=\"o\">|<\/span> <span class=\"err\">\u9ad8\u6a4b\u6b21\u90ce<\/span> <span class=\"o\">|<\/span> <span class=\"n\">m<\/span>       <span class=\"o\">|<\/span>  <span class=\"mi\">56<\/span>\r\n <span class=\"mi\">10006<\/span>           <span class=\"o\">|<\/span> <span class=\"err\">\u4e2d\u91cc\u609f<\/span>   <span class=\"o\">|<\/span> <span class=\"n\">m<\/span>       <span class=\"o\">|<\/span>  <span class=\"mi\">34<\/span>\r\n<span class=\"p\">(<\/span><span class=\"mi\">6<\/span> <span class=\"k\">rows<\/span><span class=\"p\">)<\/span>\r\n<\/code><\/pre>\n<h2>Java\u7f16\u7a0b\u4e2d\u91cd\u8981\u7684\u90e8\u5206<\/h2>\n<p>\u5728\u8bb0\u5f55\u7684\u8fc7\u7a0b\u4e2d\u8981\u8bb0\u5f97\u7559\u4e0b\u4e00\u4e9b\u4e0d\u60f3\u5fd8\u8bb0\u7684\u8981\u70b9\u3002 de li\u00fa xi\u00e0 b\u00f9 de .)<\/p>\n<h3>\u5f02\u5e38\u5904\u7406<\/h3>\n<pre class=\"post-pre\"><code>   <span class=\"kd\">public<\/span> <span class=\"kd\">static<\/span> <span class=\"kt\">void<\/span> <span class=\"nf\">main<\/span><span class=\"o\">(<\/span><span class=\"nc\">String<\/span><span class=\"o\">[]<\/span> <span class=\"n\">args<\/span><span class=\"o\">)<\/span> <span class=\"kd\">throws<\/span> <span class=\"nc\">Exception<\/span> <span class=\"o\">{<\/span>\r\n      <span class=\"k\">try<\/span> <span class=\"o\">{<\/span>\r\n          <span class=\"nc\">System<\/span><span class=\"o\">.<\/span><span class=\"na\">out<\/span><span class=\"o\">.<\/span><span class=\"na\">println<\/span><span class=\"o\">(<\/span><span class=\"s\">\"DB access start\"<\/span><span class=\"o\">);<\/span>\r\n          <span class=\"n\">PostgreSQL_test<\/span><span class=\"o\">.<\/span><span class=\"na\">dbConnect<\/span><span class=\"o\">();<\/span>\r\n      <span class=\"o\">}<\/span> <span class=\"k\">catch<\/span> <span class=\"o\">(<\/span><span class=\"nc\">Exception<\/span> <span class=\"n\">e<\/span><span class=\"o\">)<\/span> <span class=\"o\">{<\/span>\r\n          <span class=\"nc\">System<\/span><span class=\"o\">.<\/span><span class=\"na\">out<\/span><span class=\"o\">.<\/span><span class=\"na\">println<\/span><span class=\"o\">(<\/span><span class=\"s\">\"error main()\"<\/span><span class=\"o\">);<\/span>\r\n          <span class=\"n\">e<\/span><span class=\"o\">.<\/span><span class=\"na\">printStackTrace<\/span><span class=\"o\">();<\/span>\r\n      <span class=\"o\">}<\/span> <span class=\"k\">finally<\/span> <span class=\"o\">{<\/span>\r\n          <span class=\"nc\">System<\/span><span class=\"o\">.<\/span><span class=\"na\">out<\/span><span class=\"o\">.<\/span><span class=\"na\">println<\/span><span class=\"o\">(<\/span><span class=\"s\">\"DB access finished\"<\/span><span class=\"o\">);<\/span>\r\n      <span class=\"o\">}<\/span>\r\n   <span class=\"o\">}<\/span>\r\n<\/code><\/pre>\n<p>\u5728\u7f16\u5199\u4ee3\u7801\u65f6\uff0c\u6211\u4eec\u53ef\u4ee5\u4f7f\u7528try-catch\uff08-finally\uff09\u6765\u5904\u7406\u5f02\u5e38\u60c5\u51b5\u3002<\/p>\n<p>\u5728\u8fd9\u4e2a\u4f8b\u5b50\u4e2d\uff0c\u7531\u4e8e\u5c06\u5f02\u5e38\u6307\u5b9a\u4e3aException e\uff0c\u53ea\u80fd\u786e\u5b9a\u9519\u8bef\u53d1\u751f\u7684\u4f4d\u7f6e\uff0c\u4f46\u901a\u8fc7\u6539\u53d8catch\u7684\u6761\u4ef6\u5e76\u8fdb\u884c\u5e76\u884c\u63cf\u8ff0\uff0c\u4e5f\u53ef\u4ee5\u7acb\u5373\u4e86\u89e3\u9519\u8bef\u7684\u5185\u5bb9\u3002<\/p>\n<p>\u4f8b\u5982<\/p>\n<pre class=\"post-pre\"><code><span class=\"k\">try<\/span> <span class=\"o\">{<\/span>\r\n    <span class=\"n\">file_reader<\/span> <span class=\"o\">=<\/span> <span class=\"k\">new<\/span> <span class=\"nc\">FileReader<\/span><span class=\"o\">(<\/span><span class=\"n\">customer<\/span><span class=\"o\">);<\/span>\r\n    <span class=\"o\">~<\/span>\r\n  <span class=\"o\">}<\/span> <span class=\"k\">catch<\/span> <span class=\"o\">(<\/span><span class=\"nc\">FileNotFoundException<\/span> <span class=\"n\">f<\/span><span class=\"o\">)<\/span> <span class=\"o\">{<\/span>          <span class=\"c1\">\/\/ \u30d5\u30a1\u30a4\u30eb\u63a2\u7d22\u30a8\u30e9\u30fc<\/span>\r\n    <span class=\"nc\">System<\/span><span class=\"o\">.<\/span><span class=\"na\">out<\/span><span class=\"o\">.<\/span><span class=\"na\">println<\/span><span class=\"o\">(<\/span><span class=\"s\">\"cannot find file\"<\/span><span class=\"o\">);<\/span>\r\n    <span class=\"n\">f<\/span><span class=\"o\">.<\/span><span class=\"na\">printStackTrace<\/span><span class=\"o\">();<\/span>\r\n  <span class=\"o\">}<\/span> <span class=\"k\">catch<\/span> <span class=\"o\">(<\/span><span class=\"nc\">IOException<\/span> <span class=\"n\">i<\/span><span class=\"o\">)<\/span> <span class=\"o\">{<\/span>                    <span class=\"c1\">\/\/\u30d5\u30a1\u30a4\u30eb\u5165\u51fa\u529b\u30a8\u30e9\u30fc<\/span>\r\n    <span class=\"nc\">System<\/span><span class=\"o\">.<\/span><span class=\"na\">out<\/span><span class=\"o\">.<\/span><span class=\"na\">println<\/span><span class=\"o\">(<\/span><span class=\"s\">\"in\/out error\"<\/span><span class=\"o\">);<\/span>\r\n    <span class=\"n\">i<\/span><span class=\"o\">.<\/span><span class=\"na\">printStackTrace<\/span><span class=\"o\">();<\/span>\r\n  <span class=\"o\">}<\/span> <span class=\"k\">finally<\/span> <span class=\"o\">{<\/span>\r\n    <span class=\"k\">try<\/span> <span class=\"o\">{<\/span>\r\n      <span class=\"k\">if<\/span><span class=\"o\">(<\/span><span class=\"n\">file_reader<\/span> <span class=\"o\">!=<\/span> <span class=\"kc\">null<\/span><span class=\"o\">)<\/span> <span class=\"o\">{<\/span>\r\n        <span class=\"n\">file_reader<\/span><span class=\"o\">.<\/span><span class=\"na\">close<\/span><span class=\"o\">();<\/span>\r\n      <span class=\"o\">}<\/span>\r\n    <span class=\"o\">}<\/span> <span class=\"k\">catch<\/span> <span class=\"o\">(<\/span><span class=\"nc\">IOException<\/span> <span class=\"n\">i<\/span><span class=\"o\">)<\/span> <span class=\"o\">{<\/span>                  <span class=\"c1\">\/\/\u30d5\u30a1\u30a4\u30ebclose\u4e2d\u30a8\u30e9\u30fc<\/span>\r\n      <span class=\"nc\">System<\/span><span class=\"o\">.<\/span><span class=\"na\">out<\/span><span class=\"o\">.<\/span><span class=\"na\">println<\/span><span class=\"o\">(<\/span><span class=\"n\">i<\/span><span class=\"o\">);<\/span>\r\n      <span class=\"n\">i<\/span><span class=\"o\">.<\/span><span class=\"na\">printStackTrace<\/span><span class=\"o\">();<\/span>\r\n    <span class=\"o\">}<\/span>\r\n  <span class=\"o\">}<\/span>\r\n<\/code><\/pre>\n<p>\u5047\u8bbe\u6709\u8fd9\u6837\u7684\u6d41\u7a0b\u53ef\u4ee5\u5b9e\u73b0<\/p>\n<p>\u5c1d\u8bd5-\u6355\u6349-\u6355\u6349\u65b9\u9762<\/p>\n<p>new FileReader(customer)\u3092\u3057\u305f\u304c\u305d\u306e\u30d5\u30a1\u30a4\u30eb\u540d\u304c\u898b\u3064\u304b\u3089\u306a\u3044\u3068\u304d<\/p>\n<p>customer\u30d5\u30a1\u30a4\u30eb\u306f\u3042\u308b\u304c\u51fa\u529b\u3067\u304d\u306a\u304b\u3063\u305f\u3068\u304d<\/p>\n<p>\u8003\u8651\u5230\u8fd9\u4e24\u70b9\uff0c\u8fdb\u884c\u4e86\u5206\u652f\u3002<\/p>\n<p>\u2461\u6700\u7ec8 &#8211; \u5c1d\u8bd5 &#8211; \u6355\u83b7\u7684\u65b9\u6848<\/p>\n<ul class=\"post-ul\">close\u4e2d\u306e\u30a8\u30e9\u30fc<\/ul>\n<p>\u4ec5\u4ec5\u68c0\u6d4b\u5230\u3002<\/p>\n<p>\u9664\u4e86FileNotFoundException\u548cIOException\u4e4b\u5916\uff0c\u8fd8\u5b58\u5728\u8bb8\u591a\u5176\u4ed6\u7684\u5f02\u5e38\u5904\u7406\u60c5\u51b5\uff0c\u4f46\u5982\u679c\u4f7f\u7528Exception\uff0c\u5c31\u53ef\u4ee5\u6355\u6349\u5230\u6240\u6709\u7684\u9519\u8bef\uff08\u53c2\u8003\u4e0a\u8ff0\u7a0b\u5e8f\uff0c\u9664\u4e86\u80fd\u591f\u5b9a\u4f4d\u95ee\u9898\u7684\u4f4d\u7f6e\u4e4b\u5916\uff0c\u60f3\u4e0d\u51fa\u5176\u4ed6\u66f4\u597d\u7684\u65b9\u6cd5\uff09\u3002<\/p>\n<h3>\u4e3a\u4e86\u4e0e\u6570\u636e\u5e93\u5efa\u7acb\u8fde\u63a5<\/h3>\n<h4>JDBC\u7684\u521d\u59cb\u5316<\/h4>\n<p>\u5728\u8fde\u63a5\u5230\u6570\u636e\u5e93\u4e4b\u524d\uff0c\u9700\u8981\u5148\u521d\u59cb\u5316JDBC\u9a71\u52a8\u7a0b\u5e8f\u3002<\/p>\n<p>\u5982\u679c\u662fPostgreSQL\u7684\u8bdd\uff0c\u53ef\u4ee5\u6309\u7167\u4ee5\u4e0b\u7684\u65b9\u5f0f\u6765\u63cf\u8ff0\u3002<\/p>\n<pre class=\"post-pre\"><code><span class=\"nc\">Class<\/span><span class=\"o\">.<\/span><span class=\"na\">forName<\/span><span class=\"o\">(<\/span><span class=\"s\">\"org.postgresql.Driver\"<\/span><span class=\"o\">).<\/span><span class=\"na\">newInstance<\/span><span class=\"o\">();<\/span>\r\n<\/code><\/pre>\n<h4>\u5efa\u7acb\u6570\u636e\u5e93\u8fde\u63a5\/\u65ad\u5f00\u6570\u636e\u5e93\u8fde\u63a5<\/h4>\n<p>\u4e3a\u4e86\u5efa\u7acb\u4e0e\u6570\u636e\u5e93\u7684\u8fde\u63a5\uff0c\u9700\u8981\u4f7f\u7528DriverManager\u7c7b\u7684getConnection\u65b9\u6cd5\uff0c\u8be5\u65b9\u6cd5\u5728\u6807\u51c6\u5e93\u4e2d\u5b58\u5728\u3002<\/p>\n<pre class=\"post-pre\"><code><span class=\"n\">connection<\/span> <span class=\"o\">=<\/span> <span class=\"nc\">DriverManager<\/span><span class=\"o\">.<\/span><span class=\"na\">getConnection<\/span><span class=\"o\">(<\/span> <span class=\"o\">&lt;<\/span><span class=\"no\">URL<\/span><span class=\"o\">&gt;<\/span> <span class=\"o\">,<\/span> <span class=\"o\">&lt;<\/span><span class=\"no\">USER<\/span><span class=\"o\">&gt;,<\/span> <span class=\"o\">&lt;<\/span><span class=\"no\">PASSWORD<\/span><span class=\"o\">&gt;);<\/span>\r\n<\/code><\/pre>\n<p>\u5728URL\u65b9\u9762\uff0c\u53ef\u4ee5\u4f7f\u7528jdbc:postgresql:\/\/&lt;\u4f4d\u7f6e&gt;:&lt;\u7aef\u53e3\u53f7&gt;\/&lt;\u6570\u636e\u5e93\u540d&gt;\u6765\u8868\u793a\u3002<\/p>\n<p>\u8fd9\u6b21\u662f\u6839\u636e\u4ee5\u4e0b\u8bbe\u7f6e\u7684\u3002<\/p>\n<div>\n<div class=\"post-table\">\u5834\u6240\u30dd\u30fc\u30c8\u756a\u53f7DB\u540dlocalhost5432customer<\/div>\n<\/div>\n<p>\u5c31\u65ad\u7535\u800c\u8a00\uff0c\u4e3a\u4e86\u9632\u60a3\u4e8e\u672a\u7136\uff0c\u6700\u597d\u5728\u6700\u540e\u624d\u5b9e\u65bd\u3002<\/p>\n<pre class=\"post-pre\"><code><span class=\"n\">rs<\/span><span class=\"o\">.<\/span><span class=\"na\">close<\/span><span class=\"o\">();<\/span>    <span class=\"c1\">\/\/rs\u306fResultSet\u30a4\u30f3\u30bf\u30fc\u30d5\u30a7\u30fc\u30b9\u306e\u5909\u6570<\/span>\r\n<\/code><\/pre>\n<h4>SQL\u8bed\u53e5\u7684\u63cf\u8ff0<\/h4>\n<p>\u5f53\u5c06SQL\u53d1\u9001\u5230\u6570\u636e\u5e93\u65f6\uff0c\u9996\u5148\u9700\u8981\u4f7f\u7528Connection\u63a5\u53e3\u4e2d\u5b9a\u4e49\u7684createStatement\u65b9\u6cd5\u521b\u5efa\u8bed\u53e5\uff08\u5fc5\u987b\u4e0e\u53d1\u9001\u7684SQL\u4e00\u8d77\u586b\u5199\u7684\u5185\u5bb9\uff09\u3002<\/p>\n<pre class=\"post-pre\"><code><span class=\"n\">statement<\/span> <span class=\"o\">=<\/span> <span class=\"n\">con<\/span><span class=\"o\">.<\/span><span class=\"na\">createStatement<\/span><span class=\"o\">();<\/span>\r\n<\/code><\/pre>\n<p>\u7ed3\u675f\u4e0a\u8ff0\u5185\u5bb9\u540e\uff0c\u8fdb\u884cSQL\u67e5\u8be2\u8bed\u53e5\u7684\u63cf\u8ff0\u3002<\/p>\n<pre class=\"post-pre\"><code><span class=\"n\">resultset<\/span> <span class=\"o\">=<\/span> <span class=\"n\">stm<\/span><span class=\"o\">.<\/span><span class=\"na\">executeQuery<\/span><span class=\"o\">(<\/span><span class=\"s\">\" &lt;SQL\u6587&gt; \"<\/span><span class=\"o\">);<\/span>\r\n<\/code><\/pre>\n<h4>\u6570\u636e\u7684\u8f93\u51fa<\/h4>\n<p>\u53ef\u4ee5\u4f7f\u7528 ResultSet\u63a5\u53e3\u7684 next()\u65b9\u6cd5\u9010\u884c\u8fdb\u884c\u5904\u7406\u3002<\/p>\n<pre class=\"post-pre\"><code><span class=\"k\">while<\/span> <span class=\"o\">(<\/span><span class=\"n\">rs<\/span><span class=\"o\">.<\/span><span class=\"na\">next<\/span><span class=\"o\">())<\/span> <span class=\"o\">{<\/span>\r\n<span class=\"err\">\u3000\u3000\u3000<\/span><span class=\"nc\">System<\/span><span class=\"o\">.<\/span><span class=\"na\">out<\/span><span class=\"o\">.<\/span><span class=\"na\">println<\/span><span class=\"o\">(<\/span><span class=\"n\">rs<\/span><span class=\"o\">.<\/span><span class=\"na\">getInt<\/span><span class=\"o\">(<\/span><span class=\"s\">\"&lt;column&gt;\"<\/span><span class=\"o\">));<\/span>\r\n     <span class=\"nc\">System<\/span><span class=\"o\">.<\/span><span class=\"na\">out<\/span><span class=\"o\">.<\/span><span class=\"na\">println<\/span><span class=\"o\">(<\/span><span class=\"n\">rs<\/span><span class=\"o\">.<\/span><span class=\"na\">getString<\/span><span class=\"o\">(<\/span><span class=\"s\">\"&lt;column&gt;\"<\/span><span class=\"o\">));<\/span>\r\n<span class=\"o\">}<\/span>\r\n<\/code><\/pre>\n<h2>\u8fd9\u6b21\u7684Java\u7f16\u5199\u4ee3\u7801\u3002<\/h2>\n<pre class=\"post-pre\"><code><span class=\"kn\">package<\/span> <span class=\"nn\">customer<\/span><span class=\"o\">;<\/span>\r\n<span class=\"kn\">import<\/span> <span class=\"nn\">java.sql.Connection<\/span><span class=\"o\">;<\/span>\r\n<span class=\"kn\">import<\/span> <span class=\"nn\">java.sql.DriverManager<\/span><span class=\"o\">;<\/span>\r\n<span class=\"kn\">import<\/span> <span class=\"nn\">java.sql.ResultSet<\/span><span class=\"o\">;<\/span>\r\n<span class=\"kn\">import<\/span> <span class=\"nn\">java.sql.SQLException<\/span><span class=\"o\">;<\/span>\r\n<span class=\"kn\">import<\/span> <span class=\"nn\">java.sql.Statement<\/span><span class=\"o\">;<\/span>\r\n\r\n<span class=\"kd\">public<\/span> <span class=\"kd\">class<\/span> <span class=\"nc\">PostgreSQL_test<\/span> <span class=\"o\">{<\/span>\r\n\r\n   <span class=\"kd\">public<\/span> <span class=\"kd\">static<\/span> <span class=\"kt\">void<\/span> <span class=\"nf\">main<\/span><span class=\"o\">(<\/span><span class=\"nc\">String<\/span><span class=\"o\">[]<\/span> <span class=\"n\">args<\/span><span class=\"o\">)<\/span> <span class=\"kd\">throws<\/span> <span class=\"nc\">Exception<\/span> <span class=\"o\">{<\/span>\r\n      <span class=\"k\">try<\/span> <span class=\"o\">{<\/span>\r\n          <span class=\"nc\">System<\/span><span class=\"o\">.<\/span><span class=\"na\">out<\/span><span class=\"o\">.<\/span><span class=\"na\">println<\/span><span class=\"o\">(<\/span><span class=\"s\">\"DB access start\"<\/span><span class=\"o\">);<\/span>\r\n          <span class=\"n\">PostgreSQL_test<\/span><span class=\"o\">.<\/span><span class=\"na\">dbConnect<\/span><span class=\"o\">();<\/span>\r\n      <span class=\"o\">}<\/span> <span class=\"k\">catch<\/span> <span class=\"o\">(<\/span><span class=\"nc\">Exception<\/span> <span class=\"n\">e<\/span><span class=\"o\">)<\/span> <span class=\"o\">{<\/span>\r\n          <span class=\"nc\">System<\/span><span class=\"o\">.<\/span><span class=\"na\">out<\/span><span class=\"o\">.<\/span><span class=\"na\">println<\/span><span class=\"o\">(<\/span><span class=\"s\">\"error main()\"<\/span><span class=\"o\">);<\/span>\r\n          <span class=\"n\">e<\/span><span class=\"o\">.<\/span><span class=\"na\">printStackTrace<\/span><span class=\"o\">();<\/span>\r\n      <span class=\"o\">}<\/span> <span class=\"k\">finally<\/span> <span class=\"o\">{<\/span>\r\n          <span class=\"nc\">System<\/span><span class=\"o\">.<\/span><span class=\"na\">out<\/span><span class=\"o\">.<\/span><span class=\"na\">println<\/span><span class=\"o\">(<\/span><span class=\"s\">\"DB access finished\"<\/span><span class=\"o\">);<\/span>\r\n      <span class=\"o\">}<\/span>\r\n   <span class=\"o\">}<\/span>\r\n\r\n   <span class=\"kd\">private<\/span> <span class=\"kd\">static<\/span> <span class=\"kt\">void<\/span> <span class=\"nf\">dbConnect<\/span><span class=\"o\">()<\/span> <span class=\"kd\">throws<\/span> <span class=\"nc\">Exception<\/span> <span class=\"o\">{<\/span>\r\n      <span class=\"nc\">Connection<\/span> <span class=\"n\">con<\/span> <span class=\"o\">=<\/span> <span class=\"kc\">null<\/span><span class=\"o\">;<\/span>\r\n      <span class=\"nc\">Statement<\/span> <span class=\"n\">stm<\/span> <span class=\"o\">=<\/span> <span class=\"kc\">null<\/span><span class=\"o\">;<\/span>\r\n      <span class=\"nc\">ResultSet<\/span> <span class=\"n\">rs<\/span> <span class=\"o\">=<\/span> <span class=\"kc\">null<\/span><span class=\"o\">;<\/span>\r\n      <span class=\"kt\">int<\/span> <span class=\"n\">num<\/span> <span class=\"o\">=<\/span> <span class=\"mi\">1<\/span><span class=\"o\">;<\/span>\r\n\r\n      <span class=\"nc\">String<\/span> <span class=\"n\">url<\/span>        <span class=\"o\">=<\/span> <span class=\"s\">\"jdbc:postgresql:\/\/localhost:5432\/customer\"<\/span><span class=\"o\">;<\/span>\r\n      <span class=\"nc\">String<\/span> <span class=\"n\">user<\/span>       <span class=\"o\">=<\/span> <span class=\"s\">\"sf213471118\"<\/span><span class=\"o\">;<\/span>\r\n      <span class=\"nc\">String<\/span> <span class=\"n\">password<\/span>   <span class=\"o\">=<\/span> <span class=\"s\">\"\"<\/span><span class=\"o\">;<\/span>          <span class=\"c1\">\/\/\u4eca\u56de\u30d1\u30b9\u30ef\u30fc\u30c9\u306f\u8a2d\u5b9a\u3057\u3066\u3044\u306a\u3044<\/span>\r\n\r\n      <span class=\"k\">try<\/span> <span class=\"o\">{<\/span>\r\n         <span class=\"nc\">Class<\/span><span class=\"o\">.<\/span><span class=\"na\">forName<\/span><span class=\"o\">(<\/span><span class=\"s\">\"org.postgresql.Driver\"<\/span><span class=\"o\">).<\/span><span class=\"na\">newInstance<\/span><span class=\"o\">();<\/span>\r\n         <span class=\"n\">con<\/span> <span class=\"o\">=<\/span> <span class=\"nc\">DriverManager<\/span><span class=\"o\">.<\/span><span class=\"na\">getConnection<\/span><span class=\"o\">(<\/span><span class=\"n\">url<\/span><span class=\"o\">,<\/span> <span class=\"n\">user<\/span><span class=\"o\">,<\/span> <span class=\"n\">password<\/span><span class=\"o\">);<\/span>\r\n         <span class=\"n\">stm<\/span> <span class=\"o\">=<\/span> <span class=\"n\">con<\/span><span class=\"o\">.<\/span><span class=\"na\">createStatement<\/span><span class=\"o\">();<\/span>\r\n         <span class=\"n\">rs<\/span> <span class=\"o\">=<\/span> <span class=\"n\">stm<\/span><span class=\"o\">.<\/span><span class=\"na\">executeQuery<\/span><span class=\"o\">(<\/span><span class=\"s\">\"SELECT * FROM customer\"<\/span><span class=\"o\">);<\/span>\r\n         <span class=\"k\">while<\/span> <span class=\"o\">(<\/span><span class=\"n\">rs<\/span><span class=\"o\">.<\/span><span class=\"na\">next<\/span><span class=\"o\">())<\/span> <span class=\"o\">{<\/span>\r\n             <span class=\"nc\">System<\/span><span class=\"o\">.<\/span><span class=\"na\">out<\/span><span class=\"o\">.<\/span><span class=\"na\">println<\/span><span class=\"o\">(<\/span><span class=\"s\">\"[\"<\/span> <span class=\"o\">+<\/span> <span class=\"n\">num<\/span> <span class=\"o\">+<\/span> <span class=\"s\">\" \u4ef6\u76ee]\"<\/span><span class=\"o\">);<\/span>\r\n             <span class=\"n\">num<\/span><span class=\"o\">++;<\/span>\r\n             <span class=\"nc\">System<\/span><span class=\"o\">.<\/span><span class=\"na\">out<\/span><span class=\"o\">.<\/span><span class=\"na\">println<\/span><span class=\"o\">(<\/span><span class=\"s\">\"id     : \"<\/span> <span class=\"o\">+<\/span> <span class=\"n\">rs<\/span><span class=\"o\">.<\/span><span class=\"na\">getString<\/span><span class=\"o\">(<\/span><span class=\"s\">\"id\"<\/span><span class=\"o\">));<\/span>\r\n             <span class=\"nc\">System<\/span><span class=\"o\">.<\/span><span class=\"na\">out<\/span><span class=\"o\">.<\/span><span class=\"na\">println<\/span><span class=\"o\">(<\/span><span class=\"s\">\"name   : \"<\/span> <span class=\"o\">+<\/span> <span class=\"n\">rs<\/span><span class=\"o\">.<\/span><span class=\"na\">getString<\/span><span class=\"o\">(<\/span><span class=\"s\">\"name\"<\/span><span class=\"o\">));<\/span>\r\n             <span class=\"nc\">System<\/span><span class=\"o\">.<\/span><span class=\"na\">out<\/span><span class=\"o\">.<\/span><span class=\"na\">println<\/span><span class=\"o\">(<\/span><span class=\"s\">\"gender : \"<\/span> <span class=\"o\">+<\/span> <span class=\"n\">rs<\/span><span class=\"o\">.<\/span><span class=\"na\">getString<\/span><span class=\"o\">(<\/span><span class=\"s\">\"gender\"<\/span><span class=\"o\">));<\/span>\r\n             <span class=\"nc\">System<\/span><span class=\"o\">.<\/span><span class=\"na\">out<\/span><span class=\"o\">.<\/span><span class=\"na\">println<\/span><span class=\"o\">(<\/span><span class=\"s\">\"age    : \"<\/span> <span class=\"o\">+<\/span> <span class=\"n\">rs<\/span><span class=\"o\">.<\/span><span class=\"na\">getInt<\/span><span class=\"o\">(<\/span><span class=\"s\">\"age\"<\/span><span class=\"o\">));<\/span>\r\n         <span class=\"o\">}<\/span>\r\n      <span class=\"o\">}<\/span> <span class=\"k\">catch<\/span><span class=\"o\">(<\/span><span class=\"nc\">SQLException<\/span> <span class=\"n\">e<\/span><span class=\"o\">)<\/span> <span class=\"o\">{<\/span>\r\n          <span class=\"nc\">System<\/span><span class=\"o\">.<\/span><span class=\"na\">out<\/span><span class=\"o\">.<\/span><span class=\"na\">println<\/span><span class=\"o\">(<\/span><span class=\"s\">\"error dbConnect()\"<\/span><span class=\"o\">);<\/span>\r\n          <span class=\"n\">e<\/span><span class=\"o\">.<\/span><span class=\"na\">printStackTrace<\/span><span class=\"o\">();<\/span>\r\n        <span class=\"o\">}<\/span><span class=\"k\">finally<\/span> <span class=\"o\">{<\/span>\r\n            <span class=\"k\">try<\/span> <span class=\"o\">{<\/span>\r\n                <span class=\"k\">if<\/span> <span class=\"o\">((<\/span><span class=\"n\">rs<\/span> <span class=\"o\">!=<\/span> <span class=\"kc\">null<\/span><span class=\"o\">)||(<\/span><span class=\"n\">stm<\/span> <span class=\"o\">!=<\/span> <span class=\"kc\">null<\/span><span class=\"o\">)||(<\/span><span class=\"n\">con<\/span> <span class=\"o\">!=<\/span> <span class=\"kc\">null<\/span><span class=\"o\">))<\/span> <span class=\"o\">{<\/span>\r\n                    <span class=\"n\">rs<\/span><span class=\"o\">.<\/span><span class=\"na\">close<\/span><span class=\"o\">();<\/span>\r\n                <span class=\"o\">}<\/span>\r\n            <span class=\"o\">}<\/span> <span class=\"k\">catch<\/span> <span class=\"o\">(<\/span><span class=\"nc\">Exception<\/span> <span class=\"n\">e<\/span><span class=\"o\">)<\/span> <span class=\"o\">{<\/span>\r\n                 <span class=\"n\">e<\/span><span class=\"o\">.<\/span><span class=\"na\">printStackTrace<\/span><span class=\"o\">();<\/span>\r\n            <span class=\"o\">}<\/span>\r\n        <span class=\"o\">}<\/span>\r\n      <span class=\"o\">}<\/span>\r\n<span class=\"o\">}<\/span>\r\n<\/code><\/pre>\n<p>\u5f53\u4f60\u8fd0\u884c\u5b83\u65f6\uff0c\u4f1a\u8fd4\u56de\u4ee5\u4e0b\u5185\u5bb9\u3002<\/p>\n<pre class=\"post-pre\"><code>DB access start\r\n[1 \u4ef6\u76ee]\r\nid     : 10001         \r\nname   : \u7530\u4e2d\u592a\u90ce\r\ngender : m  \r\nage    : 31\r\n[2 \u4ef6\u76ee]\r\nid     : 10002          \r\nname   : \u4e2d\u6751\u82b1\u5b50\r\ngender : w  \r\nage    : 44\r\n[3 \u4ef6\u76ee]\r\nid     : 10003          \r\nname   : \u4f50\u85e4\u4e00\u90ce\r\ngender : m  \r\nage    : 20\r\n[4 \u4ef6\u76ee]\r\nid     : 10004          \r\nname   : \u5185\u7530\u5f69\r\ngender : w  \r\nage    : 18\r\n[5 \u4ef6\u76ee]\r\nid     : 10005          \r\nname   : \u9ad8\u6a4b\u6b21\u90ce\r\ngender : m  \r\nage    : 56\r\n[6 \u4ef6\u76ee]\r\nid     : 10006          \r\nname   : \u4e2d\u91cc\u609f\r\ngender : m  \r\nage    : 34\r\nDB access finished\r\n<\/code><\/pre>\n<p>\u5982\u679c\u662f\u771f\u7684\uff0c\u6211\u672c\u60f3\u7528rs.next()\u6765\u8f93\u51fa\u5f53\u524d\u8bb0\u5f55\u6570\u7684\u540d\u79f0\uff0c\u4f46\u662f\u56e0\u4e3a\u4e0d\u592a\u6e05\u695a\uff0c\u6240\u4ee5\u7528\u4e86\u4e00\u79cd\u5de7\u5999\u7684\u65b9\u6cd5\u6765\u8f93\u51fa&#8230;<\/p>\n<p>\u5982\u679c\u6709\u4eba\u80fd\u591f\u544a\u8bc9\u6211\u5982\u4f55\u505a\uff0c\u6211\u4f1a\u975e\u5e38\u9ad8\u5174\u3002<\/p>\n<h2>\u3010\u8865\u5145\u3011 2019\u5e747\u670829\u65e5<\/h2>\n<p>\u975e\u5e38\u611f\u8c22\u60a8\u7684\u8bc4\u8bba\u3002\u6211\u5df2\u7ecf\u6309\u7167\u4ee5\u4e0b\u65b9\u5f0f\u8fdb\u884c\u4e86\u4fee\u6b63\u3002<\/p>\n<p>\u4f7f\u7528rs.getRow()\u6765\u63a5\u6536\u5faa\u73af\u90e8\u5206\u7684\u5c1d\u8bd5\u6b21\u6570\u3002<\/p>\n<pre class=\"post-pre\"><code>    <span class=\"k\">while<\/span> <span class=\"o\">(<\/span><span class=\"n\">rs<\/span><span class=\"o\">.<\/span><span class=\"na\">next<\/span><span class=\"o\">())<\/span> <span class=\"o\">{<\/span>\r\n         <span class=\"nc\">System<\/span><span class=\"o\">.<\/span><span class=\"na\">out<\/span><span class=\"o\">.<\/span><span class=\"na\">println<\/span><span class=\"o\">(<\/span><span class=\"s\">\"[\"<\/span> <span class=\"o\">+<\/span> <span class=\"n\">rs<\/span><span class=\"o\">.<\/span><span class=\"na\">getRow<\/span><span class=\"o\">()<\/span> <span class=\"o\">+<\/span> <span class=\"s\">\" \u4ef6\u76ee]\"<\/span><span class=\"o\">);<\/span>        <span class=\"cm\">\/* \u4fee\u6b63\u90e8\u5206 *\/<\/span>\r\n         <span class=\"nc\">System<\/span><span class=\"o\">.<\/span><span class=\"na\">out<\/span><span class=\"o\">.<\/span><span class=\"na\">println<\/span><span class=\"o\">(<\/span><span class=\"s\">\"id     : \"<\/span> <span class=\"o\">+<\/span> <span class=\"n\">rs<\/span><span class=\"o\">.<\/span><span class=\"na\">getString<\/span><span class=\"o\">(<\/span><span class=\"s\">\"id\"<\/span><span class=\"o\">));<\/span>\r\n         <span class=\"nc\">System<\/span><span class=\"o\">.<\/span><span class=\"na\">out<\/span><span class=\"o\">.<\/span><span class=\"na\">println<\/span><span class=\"o\">(<\/span><span class=\"s\">\"name   : \"<\/span> <span class=\"o\">+<\/span> <span class=\"n\">rs<\/span><span class=\"o\">.<\/span><span class=\"na\">getString<\/span><span class=\"o\">(<\/span><span class=\"s\">\"name\"<\/span><span class=\"o\">));<\/span>\r\n         <span class=\"nc\">System<\/span><span class=\"o\">.<\/span><span class=\"na\">out<\/span><span class=\"o\">.<\/span><span class=\"na\">println<\/span><span class=\"o\">(<\/span><span class=\"s\">\"gender : \"<\/span> <span class=\"o\">+<\/span> <span class=\"n\">rs<\/span><span class=\"o\">.<\/span><span class=\"na\">getString<\/span><span class=\"o\">(<\/span><span class=\"s\">\"gender\"<\/span><span class=\"o\">));<\/span>\r\n         <span class=\"nc\">System<\/span><span class=\"o\">.<\/span><span class=\"na\">out<\/span><span class=\"o\">.<\/span><span class=\"na\">println<\/span><span class=\"o\">(<\/span><span class=\"s\">\"age    : \"<\/span> <span class=\"o\">+<\/span> <span class=\"n\">rs<\/span><span class=\"o\">.<\/span><span class=\"na\">getInt<\/span><span class=\"o\">(<\/span><span class=\"s\">\"age\"<\/span><span class=\"o\">));<\/span>\r\n    <span class=\"o\">}<\/span>\r\n<\/code><\/pre>\n<p>\u6211\u5df2\u7ecf\u4fee\u590d\u4e86\u6f0f\u6d1e\u3002<\/p>\n<pre class=\"post-pre\"><code>     <span class=\"k\">try<\/span> <span class=\"o\">{<\/span>\r\n         <span class=\"k\">if<\/span> <span class=\"o\">((<\/span><span class=\"n\">rs<\/span> <span class=\"o\">!=<\/span> <span class=\"kc\">null<\/span><span class=\"o\">)||(<\/span><span class=\"n\">stm<\/span> <span class=\"o\">!=<\/span> <span class=\"kc\">null<\/span><span class=\"o\">)||(<\/span><span class=\"n\">con<\/span> <span class=\"o\">!=<\/span> <span class=\"kc\">null<\/span><span class=\"o\">))<\/span> <span class=\"o\">{<\/span>\r\n             <span class=\"n\">rs<\/span><span class=\"o\">.<\/span><span class=\"na\">close<\/span><span class=\"o\">();<\/span>\r\n             <span class=\"n\">stm<\/span><span class=\"o\">.<\/span><span class=\"na\">close<\/span><span class=\"o\">();<\/span>      <span class=\"cm\">\/* \u4fee\u6b63\u90e8\u5206 *\/<\/span>\r\n             <span class=\"n\">con<\/span><span class=\"o\">.<\/span><span class=\"na\">close<\/span><span class=\"o\">();<\/span>      <span class=\"cm\">\/* \u4fee\u6b63\u90e8\u5206 *\/<\/span>\r\n          <span class=\"o\">}<\/span>\r\n      <span class=\"o\">}<\/span> <span class=\"k\">catch<\/span> <span class=\"o\">(<\/span><span class=\"nc\">Exception<\/span> <span class=\"n\">e<\/span><span class=\"o\">)<\/span> <span class=\"o\">{<\/span>\r\n                 <span class=\"n\">e<\/span><span class=\"o\">.<\/span><span class=\"na\">printStackTrace<\/span><span class=\"o\">();<\/span>\r\n        <span class=\"o\">}<\/span>\r\n<\/code><\/pre>\n<p>\u518d\u6b21\u611f\u8c22\u60a8\u3002<\/p>\n","protected":false},"excerpt":{"rendered":"<p>\u8bd5\u8bd5\u5728Java\u4e2d\u8fd0\u884cPostgreSQL\u3002 \u73af\u5883 macOS Mojave &nbsp; Eclipse 4. [&hellip;]<\/p>\n","protected":false},"author":11,"featured_media":0,"comment_status":"closed","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[1],"tags":[],"class_list":["post-31613","post","type-post","status-publish","format-standard","hentry","category-uncategorized"],"yoast_head":"<!-- This site is optimized with the Yoast SEO Premium plugin v21.5 (Yoast SEO v21.5) - https:\/\/yoast.com\/wordpress\/plugins\/seo\/ -->\n<title>\u7528Java\u8fd0\u884cPostgreSQL - Blog - Silicon Cloud<\/title>\n<meta name=\"robots\" content=\"index, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1\" \/>\n<link rel=\"canonical\" href=\"https:\/\/www.silicloud.com\/zh\/blog\/\u7528java\u8fd0\u884cpostgresql\/\" \/>\n<meta property=\"og:locale\" content=\"zh_CN\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"\u7528Java\u8fd0\u884cPostgreSQL\" \/>\n<meta property=\"og:description\" content=\"\u8bd5\u8bd5\u5728Java\u4e2d\u8fd0\u884cPostgreSQL\u3002 \u73af\u5883 macOS Mojave &nbsp; Eclipse 4. [&hellip;]\" \/>\n<meta property=\"og:url\" content=\"https:\/\/www.silicloud.com\/zh\/blog\/\u7528java\u8fd0\u884cpostgresql\/\" \/>\n<meta property=\"og:site_name\" content=\"Blog - Silicon Cloud\" \/>\n<meta property=\"article:published_time\" content=\"2024-02-29T08:41:42+00:00\" \/>\n<meta property=\"article:modified_time\" content=\"2024-04-30T01:57:11+00:00\" \/>\n<meta property=\"og:image\" content=\"https:\/\/cdn.silicloud.com\/blog-img\/blog\/img\/657d0d9537434c4406beb387\/9-0.png\" \/>\n<meta name=\"author\" content=\"\u65b0, \u97f5\" \/>\n<meta name=\"twitter:card\" content=\"summary_large_image\" \/>\n<meta name=\"twitter:label1\" content=\"\u4f5c\u8005\" \/>\n\t<meta name=\"twitter:data1\" content=\"\u65b0, \u97f5\" \/>\n\t<meta name=\"twitter:label2\" content=\"\u9884\u8ba1\u9605\u8bfb\u65f6\u95f4\" \/>\n\t<meta name=\"twitter:data2\" content=\"3 \u5206\" \/>\n<script type=\"application\/ld+json\" class=\"yoast-schema-graph\">{\"@context\":\"https:\/\/schema.org\",\"@graph\":[{\"@type\":\"WebPage\",\"@id\":\"https:\/\/www.silicloud.com\/zh\/blog\/%e7%94%a8java%e8%bf%90%e8%a1%8cpostgresql\/\",\"url\":\"https:\/\/www.silicloud.com\/zh\/blog\/%e7%94%a8java%e8%bf%90%e8%a1%8cpostgresql\/\",\"name\":\"\u7528Java\u8fd0\u884cPostgreSQL - Blog - Silicon Cloud\",\"isPartOf\":{\"@id\":\"https:\/\/www.silicloud.com\/zh\/blog\/#website\"},\"datePublished\":\"2024-02-29T08:41:42+00:00\",\"dateModified\":\"2024-04-30T01:57:11+00:00\",\"author\":{\"@id\":\"https:\/\/www.silicloud.com\/zh\/blog\/#\/schema\/person\/4ba4019495123db3038fd0809e6959c9\"},\"breadcrumb\":{\"@id\":\"https:\/\/www.silicloud.com\/zh\/blog\/%e7%94%a8java%e8%bf%90%e8%a1%8cpostgresql\/#breadcrumb\"},\"inLanguage\":\"zh-Hans\",\"potentialAction\":[{\"@type\":\"ReadAction\",\"target\":[\"https:\/\/www.silicloud.com\/zh\/blog\/%e7%94%a8java%e8%bf%90%e8%a1%8cpostgresql\/\"]}]},{\"@type\":\"BreadcrumbList\",\"@id\":\"https:\/\/www.silicloud.com\/zh\/blog\/%e7%94%a8java%e8%bf%90%e8%a1%8cpostgresql\/#breadcrumb\",\"itemListElement\":[{\"@type\":\"ListItem\",\"position\":1,\"name\":\"\u9996\u9875\",\"item\":\"https:\/\/www.silicloud.com\/zh\/blog\/\"},{\"@type\":\"ListItem\",\"position\":2,\"name\":\"\u7528Java\u8fd0\u884cPostgreSQL\"}]},{\"@type\":\"WebSite\",\"@id\":\"https:\/\/www.silicloud.com\/zh\/blog\/#website\",\"url\":\"https:\/\/www.silicloud.com\/zh\/blog\/\",\"name\":\"Blog - Silicon Cloud\",\"description\":\"\",\"inLanguage\":\"zh-Hans\"},{\"@type\":\"Person\",\"@id\":\"https:\/\/www.silicloud.com\/zh\/blog\/#\/schema\/person\/4ba4019495123db3038fd0809e6959c9\",\"name\":\"\u65b0, \u97f5\",\"image\":{\"@type\":\"ImageObject\",\"inLanguage\":\"zh-Hans\",\"@id\":\"https:\/\/www.silicloud.com\/zh\/blog\/#\/schema\/person\/image\/\",\"url\":\"https:\/\/secure.gravatar.com\/avatar\/d484b6c6e4ae82e8a9efea989e1d2af46d9b6ef128101e63b18f559fca0ae627?s=96&d=mm&r=g\",\"contentUrl\":\"https:\/\/secure.gravatar.com\/avatar\/d484b6c6e4ae82e8a9efea989e1d2af46d9b6ef128101e63b18f559fca0ae627?s=96&d=mm&r=g\",\"caption\":\"\u65b0, \u97f5\"},\"url\":\"https:\/\/www.silicloud.com\/zh\/blog\/author\/yunxin\/\"},{\"@type\":\"ImageObject\",\"inLanguage\":\"zh-Hans\",\"@id\":\"https:\/\/www.silicloud.com\/zh\/blog\/%e7%94%a8java%e8%bf%90%e8%a1%8cpostgresql\/#local-main-organization-logo\",\"url\":\"\",\"contentUrl\":\"\",\"caption\":\"Blog - Silicon Cloud\"}]}<\/script>\n<!-- \/ Yoast SEO Premium plugin. -->","yoast_head_json":{"title":"\u7528Java\u8fd0\u884cPostgreSQL - Blog - Silicon Cloud","robots":{"index":"index","follow":"follow","max-snippet":"max-snippet:-1","max-image-preview":"max-image-preview:large","max-video-preview":"max-video-preview:-1"},"canonical":"https:\/\/www.silicloud.com\/zh\/blog\/\u7528java\u8fd0\u884cpostgresql\/","og_locale":"zh_CN","og_type":"article","og_title":"\u7528Java\u8fd0\u884cPostgreSQL","og_description":"\u8bd5\u8bd5\u5728Java\u4e2d\u8fd0\u884cPostgreSQL\u3002 \u73af\u5883 macOS Mojave &nbsp; Eclipse 4. 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