{"id":42116,"date":"2023-06-03T03:39:53","date_gmt":"2023-11-26T16:55:40","guid":{"rendered":"https:\/\/www.silicloud.com\/zh\/blog\/%e4%b8%8d%e4%bd%bf%e7%94%a8eclipse%ef%bc%8c%e4%bd%bf%e7%94%a8jdbc%e5%9c%a8java%e5%ba%94%e7%94%a8%e7%a8%8b%e5%ba%8f%e5%92%8cpostgresql%e4%b9%8b%e9%97%b4%e5%bb%ba%e7%ab%8b%e8%bf%9e%e6%8e%a5%ef%bc%88\/"},"modified":"2024-04-30T07:06:25","modified_gmt":"2024-04-29T23:06:25","slug":"%e4%b8%8d%e4%bd%bf%e7%94%a8eclipse%ef%bc%8c%e4%bd%bf%e7%94%a8jdbc%e5%9c%a8java%e5%ba%94%e7%94%a8%e7%a8%8b%e5%ba%8f%e5%92%8cpostgresql%e4%b9%8b%e9%97%b4%e5%bb%ba%e7%ab%8b%e8%bf%9e%e6%8e%a5%ef%bc%88","status":"publish","type":"post","link":"https:\/\/www.silicloud.com\/zh\/blog\/%e4%b8%8d%e4%bd%bf%e7%94%a8eclipse%ef%bc%8c%e4%bd%bf%e7%94%a8jdbc%e5%9c%a8java%e5%ba%94%e7%94%a8%e7%a8%8b%e5%ba%8f%e5%92%8cpostgresql%e4%b9%8b%e9%97%b4%e5%bb%ba%e7%ab%8b%e8%bf%9e%e6%8e%a5%ef%bc%88\/","title":{"rendered":"\u4e0d\u4f7f\u7528eclipse\uff0c\u4f7f\u7528JDBC\u5728Java\u5e94\u7528\u7a0b\u5e8f\u548cPostgreSQL\u4e4b\u95f4\u5efa\u7acb\u8fde\u63a5\uff08\u901a\u8fc7\u547d\u4ee4\u63d0\u793a\u7b26\u6267\u884c\uff09"},"content":{"rendered":"<h2>\u9996\u5148<\/h2>\n<p>\u4f5c\u4e3a\u4e00\u540d\u7f16\u7a0b\u6559\u80b2\u7684\u8bb2\u5e08\uff0c\u6211\u5728\u5bf9\u521d\u5b66\u8005\u8fdb\u884c\u6559\u5b66\u65f6\uff0c\u6545\u610f\u4e0d\u4f7f\u7528\u96c6\u6210\u5f00\u53d1\u73af\u5883\uff0c\u800c\u662f\u8ba9\u4ed6\u4eec\u7406\u89e3\u7f16\u7a0b\u8bed\u8a00\u7684\u57fa\u7840\u77e5\u8bc6\u3002\u56e0\u6b64\uff0c\u6211\u9700\u8981\u63d0\u4f9b\u4e00\u4e2a\u4e0d\u4f7f\u7528Eclipse\uff0c\u800c\u662f\u80fd\u591f\u8fd0\u884cJava\u5e94\u7528\u7a0b\u5e8f\u7684\u73af\u5883\u3002<\/p>\n<h2>\u9605\u8bfb\u8fd9\u7bc7\u6587\u7ae0\u540e\u53ef\u4ee5\u505a\u7684\u4e8b\u60c5<\/h2>\n<p>\u5728\u547d\u4ee4\u63d0\u793a\u7b26\u4e2d\uff0c\u60a8\u53ef\u4ee5\u4f7f\u7528PostgreSQL\u7684API\u6765\u8fd0\u884cJava\u5e94\u7528\u7a0b\u5e8f\u3002<\/p>\n<h2>\u6267\u884c\u73af\u5883<\/h2>\n<p>\u6211\u4f7f\u7528\u4ee5\u4e0b\u73af\u5883\u8fdb\u884c\u6267\u884c\u3002<\/p>\n<ul class=\"post-ul\">\n<li style=\"list-style-type: none;\">\n<ul class=\"post-ul\">OS<\/ul>\n<\/li>\n<\/ul>\n<p>Windows10<\/p>\n<p>Java\u30d0\u30fc\u30b8\u30e7\u30f3<\/p>\n<p>OpenJDK 14.0.2<\/p>\n<p>\u30c7\u30fc\u30bf\u30d9\u30fc\u30b9\u30d0\u30fc\u30b8\u30e7\u30f3<\/p>\n<p>PostgreSQL 12<\/p>\n<h2>\u6dfb\u52a0JDBC\u7684jar\u6587\u4ef6\u5230PostgreSQL\u3002<\/h2>\n<p>\u8bf7\u542f\u52a8\u4e0e\u5b89\u88c5PostgreSQL\u76f8\u5173\u7684\u9644\u5e26\u5e94\u7528\u7a0b\u5e8f&#8221;Stack Builder&#8221;\u3002<\/p>\n<div><img decoding=\"async\" class=\"post-images\" title=\"\" src=\"https:\/\/cdn.silicloud.com\/blog-img\/blog\/img\/657d4af137434c4406cb5439\/9-0.png\" alt=\"\u30b9\u30bf\u30c3\u30af\u30d3\u30eb\u30c0 4.2.0\u306e\u8d77\u52d5\u753b\u9762\" \/><\/div>\n<p>\u8bf7\u4ece\u60a8\u60f3\u8981\u5b89\u88c5\u7684\u5e94\u7528\u7a0b\u5e8f\u4e2d\u9009\u62e9&#8221;pgJDBC vXX.X.XX&#8221;\u3002\u7531\u4e8e\u8fd9\u662f\u4e00\u4e2a\u5b89\u88c5\u7a0b\u5e8f\uff0c\u60a8\u53ef\u4ee5\u9009\u62e9\u4fdd\u5b58\u5230\u4efb\u4f55\u76ee\u5f55\u3002\uff08\u5982\u679c\u4e0d\u786e\u5b9a\uff0c\u8bf7\u4fdd\u5b58\u5230\u4e0b\u8f7d\u6587\u4ef6\u5939\u3002\uff09<\/p>\n<div><img decoding=\"async\" class=\"post-images\" title=\"\" src=\"https:\/\/cdn.silicloud.com\/blog-img\/blog\/img\/657d4af137434c4406cb5439\/11-0.png\" alt=\"\u30b9\u30bf\u30c3\u30af\u30d3\u30eb\u30c0 4.2.0\u306e\u30a4\u30f3\u30b9\u30c8\u30fc\u30eb\u3057\u305f\u3044\u30a2\u30d7\u30ea\u30b1\u30fc\u30b7\u30e7\u30f3\u306e\u9078\u629e\u753b\u9762\" \/><\/div>\n<p>\u8bf7\u6253\u5f00\u60a8\u5728\u4e0a\u9762\u4e0b\u8f7d\u7684\u201cedb_pgjdbc.exe\u201d\u6587\u4ef6\uff0c\u5e76\u6dfb\u52a0\u5230jar\u6587\u4ef6\u4e2d\u3002<br \/>\n\u8bf7\u5c06\u5176\u5b89\u88c5\u5728\u9ed8\u8ba4\u7684\u4f4d\u7f6e\uff08\u201cC:\\Program Files (x86)\\PostgreSQL\\pgJDBC\u201d\uff09\u5e76\u4fdd\u5b58\u3002<\/p>\n<h2>\u4f7f\u7528JDBC\u4e0ePostgreSQL\u8fdb\u884c\u8fde\u63a5\u3002<\/h2>\n<p>\u6700\u8fd1\uff0c\u6211\u5728\u8fdb\u884cJava\u7f16\u7a0b\u65f6\u66f4\u591a\u5730\u4f7f\u7528\u96c6\u6210\u5f00\u53d1\u73af\u5883\uff08\u5982eclipse\uff09\u8fdb\u884c\u5f00\u53d1\uff0c\u5f88\u5c11\u518d\u4f7f\u7528\u7b80\u5355\u7684\u7f16\u8f91\u5668\uff08\u5982Sakura Editor\uff09\u8fdb\u884c\u5b9e\u73b0\u3002\uff08\u5728\u5927\u5b66\u7b49\u5b66\u4e60\u65f6\u66fe\u7ecf\u7ecf\u5e38\u4f7f\u7528\u2026\u3002\uff09\u5728eclipse\u4e2d\u7ecf\u5e38\u770b\u5230JDBC\u7684\u4f7f\u7528\u65b9\u6cd5\uff0c\u73b0\u5728\u8fdb\u884c\u590d\u4e60\u4e00\u4e0b\u3002<\/p>\n<p>\u5728\u4f7f\u7528JDBC\u65f6\uff0c\u9700\u8981\u5148\u521b\u5efa\u4e00\u4e2a\u65b0\u7684Java\u9879\u76ee\uff0c\u5728\u9879\u76ee\u4e0a\u5355\u51fb\u53f3\u952e\uff0c\u7136\u540e\u901a\u8fc7\u4ee5\u4e0b\u64cd\u4f5c\u6dfb\u52a0JDBC\u7684jar\u6587\u4ef6\u3002<\/p>\n<div><img decoding=\"async\" class=\"post-images\" title=\"\" src=\"https:\/\/cdn.silicloud.com\/blog-img\/blog\/img\/657d4af137434c4406cb5439\/16-0.png\" alt=\"eclipse\u65b0\u898fJava\u30d7\u30ed\u30b8\u30a7\u30af\u30c8\u4f5c\u6210\u753b\u9762\" \/><\/div>\n<p>\uff08\u4e2d\u6587\uff09<br \/>\n\u9009\u62e9&#8221;\u6784\u5efa\u8def\u5f84&#8221;\u2192&#8221;\u6dfb\u52a0\u5916\u90e8\u5e93&#8230;&#8221;\u2192&#8221;postgresql-XX.X.XX.jar&#8221;<\/p>\n<div><img decoding=\"async\" class=\"post-images\" title=\"\" src=\"https:\/\/cdn.silicloud.com\/blog-img\/blog\/img\/657d4af137434c4406cb5439\/18-0.png\" alt=\"\u30d3\u30eb\u30c9\u30d1\u30b9\u306e\u8ffd\u52a0\u5f8c\" \/><\/div>\n<p>\u6dfb\u52a0\u540e\u5c06\u663e\u793a\u5728\u5305\u8d44\u6e90\u7ba1\u7406\u5668\u4e2d\u3002<\/p>\n<div><img decoding=\"async\" class=\"post-images\" title=\"\" src=\"https:\/\/cdn.silicloud.com\/blog-img\/blog\/img\/657d4af137434c4406cb5439\/20-0.png\" alt=\"eclipse\u3067\u30d3\u30eb\u30c9\u30d1\u30b9\u306e\u8ffd\u52a0\u65b9\u6cd5\" \/><\/div>\n<h2>\u6211\u60f3\u6267\u884c\u7684\u6e90\u4ee3\u7801<\/h2>\n<p>\u5728\u6570\u636e\u5e93\uff08restaurantdb\uff09\u4e2d\u5df2\u7ecf\u521b\u5efa\u4e86\u8868\uff08menuitems\uff09\u3002<\/p>\n<pre class=\"post-pre\"><code><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\">P5_1<\/span> <span class=\"o\">{<\/span>\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=\"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:\/\/127.0.0.1:5432\/restaurantdb\"<\/span><span class=\"o\">;<\/span>\r\n       <span class=\"nc\">String<\/span> <span class=\"n\">user<\/span> <span class=\"o\">=<\/span> <span class=\"s\">\"postgres\"<\/span><span class=\"o\">;<\/span>\r\n       <span class=\"nc\">String<\/span> <span class=\"n\">password<\/span> <span class=\"o\">=<\/span> <span class=\"s\">\"postgres\"<\/span><span class=\"o\">;<\/span>\r\n       <span class=\"nc\">String<\/span> <span class=\"n\">sql<\/span> <span class=\"o\">=<\/span> <span class=\"s\">\"SELECT * FROM menuitems\"<\/span><span class=\"o\">;<\/span>\r\n\r\n       <span class=\"k\">try<\/span> <span class=\"o\">(<\/span><span class=\"nc\">Connection<\/span> <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=\"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=\"nc\">Statement<\/span> <span class=\"n\">statement<\/span> <span class=\"o\">=<\/span> <span class=\"n\">connection<\/span><span class=\"o\">.<\/span><span class=\"na\">createStatement<\/span><span class=\"o\">();<\/span>\r\n           <span class=\"nc\">ResultSet<\/span> <span class=\"n\">resultSet<\/span> <span class=\"o\">=<\/span> <span class=\"n\">statement<\/span><span class=\"o\">.<\/span><span class=\"na\">executeQuery<\/span><span class=\"o\">(<\/span><span class=\"n\">sql<\/span><span class=\"o\">))<\/span> <span class=\"o\">{<\/span>\r\n\r\n           <span class=\"k\">while<\/span><span class=\"o\">(<\/span><span class=\"n\">resultSet<\/span><span class=\"o\">.<\/span><span class=\"na\">next<\/span><span class=\"o\">())<\/span> <span class=\"o\">{<\/span>\r\n               <span class=\"nc\">String<\/span> <span class=\"n\">id<\/span> <span class=\"o\">=<\/span> <span class=\"n\">resultSet<\/span><span class=\"o\">.<\/span><span class=\"na\">getString<\/span><span class=\"o\">(<\/span><span class=\"mi\">1<\/span><span class=\"o\">);<\/span>\r\n               <span class=\"nc\">String<\/span> <span class=\"n\">name<\/span> <span class=\"o\">=<\/span> <span class=\"n\">resultSet<\/span><span class=\"o\">.<\/span><span class=\"na\">getString<\/span><span class=\"o\">(<\/span><span class=\"mi\">2<\/span><span class=\"o\">);<\/span>\r\n               <span class=\"kt\">int<\/span> <span class=\"n\">price<\/span> <span class=\"o\">=<\/span> <span class=\"n\">resultSet<\/span><span class=\"o\">.<\/span><span class=\"na\">getInt<\/span><span class=\"o\">(<\/span><span class=\"mi\">3<\/span><span class=\"o\">);<\/span>\r\n               <span class=\"nc\">String<\/span> <span class=\"n\">kindId<\/span> <span class=\"o\">=<\/span> <span class=\"n\">resultSet<\/span><span class=\"o\">.<\/span><span class=\"na\">getString<\/span><span class=\"o\">(<\/span><span class=\"mi\">4<\/span><span class=\"o\">);<\/span>\r\n               <span class=\"nc\">Boolean<\/span> <span class=\"n\">isDisabled<\/span> <span class=\"o\">=<\/span> <span class=\"n\">resultSet<\/span><span class=\"o\">.<\/span><span class=\"na\">getBoolean<\/span><span class=\"o\">(<\/span><span class=\"mi\">5<\/span><span class=\"o\">);<\/span>\r\n\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\">id<\/span> <span class=\"o\">+<\/span> <span class=\"s\">\" \"<\/span> <span class=\"o\">+<\/span> <span class=\"n\">name<\/span> <span class=\"o\">+<\/span> <span class=\"s\">\" \"<\/span> <span class=\"o\">+<\/span> <span class=\"n\">price<\/span> <span class=\"o\">+<\/span> <span class=\"s\">\" \"<\/span> <span class=\"o\">+<\/span> <span class=\"n\">kindId<\/span> <span class=\"o\">+<\/span> <span class=\"s\">\" \"<\/span> <span class=\"o\">+<\/span> <span class=\"n\">isDisabled<\/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=\"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<\/code><\/pre>\n<h2>\u6211\u60f3\u8981\u89e3\u51b3\u5728\u4e0d\u4f7f\u7528Eclipse\u7684\u60c5\u51b5\u4e0b\uff0c\u4eceJava\u7a0b\u5e8f\u8fde\u63a5\u6570\u636e\u5e93\u65f6\u51fa\u73b0\u9519\u8bef\u7684\u95ee\u9898\u3002<\/h2>\n<pre class=\"post-pre\"><code>C:\\java-programming\\JDBCSample&gt;javac P5_1.java\r\n\r\nC:\\java-programming\\JDBCSample&gt;java P5_1\r\njava.sql.SQLException: No suitable driver found for jdbc:postgresql:\/\/127.0.0.1:5432\/restaurantdb\r\n       at java.sql\/java.sql.DriverManager.getConnection(DriverManager.java:702)\r\n       at java.sql\/java.sql.DriverManager.getConnection(DriverManager.java:228)\r\n       at P5_1.main(P5_1.java:15)\r\n<\/code><\/pre>\n<p>\u770b\u8d77\u6765\u6709\u4e24\u79cd\u65b9\u6cd5\u53ef\u4ee5\u89e3\u51b3\u4e0a\u8ff0\u9519\u8bef\uff1a<br \/>\n\u2022 \u5c06&#8221;CLASSPATH&#8221;\u6dfb\u52a0\u5230\u73af\u5883\u53d8\u91cf\u4e2d<br \/>\n\u2022 \u6267\u884c\u65f6\u4f7f\u7528\u6267\u884c\u9009\u9879&#8221;-cp&#8221;<\/p>\n<h2>\u5c06\u201cCLASSPATH\u201d\u6dfb\u52a0\u5230\u73af\u5883\u53d8\u91cf\u4e2d\u3002<\/h2>\n<p>\u5728\u4e2d\u56fd\u6709\u4ee5\u4e0b\u4e00\u79cd\u9009\u62e9\uff0c\u5373\u5411\u73af\u5883\u53d8\u91cf\u4e2d\u6dfb\u52a0&#8221;CLASSPATH&#8221;\u3002<br \/>\n\u8bf7\u6309\u7167\u4ee5\u4e0b\u65b9\u5f0f\u8fdb\u884c\u64cd\u4f5c\uff1a&#8221;\u63a7\u5236\u9762\u677f&#8221;\u2192&#8221;\u7cfb\u7edf&#8221;\u2192&#8221;\u7cfb\u7edf\u8be6\u7ec6\u8bbe\u7f6e&#8221;\u2192&#8221;\u73af\u5883\u53d8\u91cf&#8221;\u2192&#8221;\u7528\u6237\u73af\u5883\u53d8\u91cf&#8221;\u4e2d\u6dfb\u52a0\u4ee5\u4e0b\u5185\u5bb9\u3002<br \/>\n\u53d8\u91cf\u540d\uff1a&#8221;CLASSPATH&#8221;<br \/>\n\u503c\uff1a&#8221;C:\\Program Files (x86)\\PostgreSQL\\pgJDBC\\postgresql-42.2.12.jar;\u3002&#8221;<br \/>\n\u8bf7\u6ce8\u610f\uff0c\u503c\u7684\u672b\u5c3e\u6709\u4e00\u4e2a\u53e5\u70b9\uff08.\uff09\u3002\u5982\u679c\u5fd8\u8bb0\u6dfb\u52a0\u53e5\u70b9\uff0c\u53ef\u80fd\u4f1a\u5bfc\u81f4\u9ed8\u8ba4\u8bbe\u7f6e\u7684\u5f53\u524d\u76ee\u5f55\u7684\u7c7b\u8def\u5f84\u65e0\u6548\u3002<br \/>\n\u8bf7\u6ce8\u610f\uff0c&#8221;postgresql-XX.X.XX.jar&#8221;\u5e94\u6839\u636e\u5b9e\u9645\u60c5\u51b5\u66ff\u6362\u4e3a\u6b63\u786e\u7684\u5b58\u50a8\u4f4d\u7f6e\u548c\u7248\u672c\u53f7\u3002<br \/>\n\u5982\u679c\u5df2\u7ecf\u5b58\u5728&#8221;CLASSPATH&#8221;\uff0c\u8bf7\u4e0d\u8981\u5220\u9664\u73b0\u6709\u503c\uff0c\u56e0\u4e3a\u8fd9\u53ef\u80fd\u4f1a\u7834\u574f\u5176\u4ed6\u73af\u5883\u3002\u8bf7\u4ee5\u6dfb\u52a0\u7684\u65b9\u5f0f\u8fdb\u884c\u7f16\u8f91\u3002\u4f8b\u5982\uff0c\u5982\u679c\u5df2\u7ecf\u8bbe\u7f6e\u4e86&#8221;C:\\XXX\\YYY.jar;&#8221;\uff0c\u8bf7\u8ffd\u52a0\u4e3a&#8221;C:\\XXX\\YYY.jar;C:\\Program Files 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\/>\n\u8bf7\u6ce8\u610f\uff0c\u5728\u503c\u7684\u672b\u5c3e\u6709\u4e00\u4e2a\u53e5\u70b9\uff08.\uff09\u3002\u5982\u679c\u5fd8\u8bb0\u8f93\u5165\u53e5\u70b9\uff0c\u5219\u9ed8\u8ba4\u8bbe\u7f6e\u7684\u5f53\u524d\u76ee\u5f55\u7684\u7c7b\u8def\u5f84\u53ef\u80fd\u65e0\u6548\u3002<br \/>\n\u8bf7\u6839\u636e\u5b9e\u9645\u60c5\u51b5\u8c03\u6574&#8221;postgresql-XX.X.XX.jar&#8221;\u7684\u5b58\u50a8\u4f4d\u7f6e\u548c\u7248\u672c\u7b49\u7ec6\u8282\u3002<\/p>\n<h2>\u603b\u7ed3<\/h2>\n<p>\u8fd9\u6b21\uff0c\u6211\u6ca1\u6709\u4f7f\u7528eclipse\uff0c\u800c\u662f\u4eceJava\u7a0b\u5e8f\u4e2d\u8c03\u7528JDBC\u7684API\u3002<br \/>\n\u867d\u7136\u53ef\u80fd\u5f88\u5c11\u6709\u673a\u4f1a\u4f7f\u7528\u5b83\uff0c\u4f46\u5728\u7406\u89e3\u5176\u539f\u7406\u65b9\u9762\u5c1d\u8bd5\u4e00\u4e0b\u4e5f\u662f\u4e0d\u9519\u7684\u3002<\/p>\n<p>\u975e\u5e38\u611f\u8c22\u4f60\u3002<\/p>\n<h2>\u8bf7\u53c2\u8003<\/h2>\n<ul class=\"post-ul\">\n<li style=\"list-style-type: none;\">\n<ul 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