{"id":60811,"date":"2024-10-13T06:00:15","date_gmt":"2024-10-12T22:00:15","guid":{"rendered":"https:\/\/server.hk\/cnblog\/60811\/"},"modified":"2024-10-13T06:00:15","modified_gmt":"2024-10-12T22:00:15","slug":"db2%e6%95%b8%e6%93%9a%e5%ba%ab%e6%8f%90%e4%be%9b%e7%9a%842%e7%a8%aedb%e9%80%a3%e6%8e%a5%e6%96%b9%e5%bc%8f%e6%93%8d%e4%bd%9c%e6%80%a7%e5%a6%82%e4%bd%95%ef%bc%9f","status":"publish","type":"post","link":"https:\/\/server.hk\/cnblog\/60811\/","title":{"rendered":"DB2\u6578\u64da\u5eab\u63d0\u4f9b\u76842\u7a2eDB\u9023\u63a5\u65b9\u5f0f\u64cd\u4f5c\u6027\u5982\u4f55\uff1f"},"content":{"rendered":"

DB2\u6578\u64da\u5eab\u63d0\u4f9b\u76842\u7a2eDB\u9023\u63a5\u65b9\u5f0f\u64cd\u4f5c\u6027\u5982\u4f55\uff1f<\/h1>\n

\u5728\u7576\u4eca\u7684\u6578\u64da\u9a45\u52d5\u6642\u4ee3\uff0c\u6578\u64da\u5eab\u7684\u9078\u64c7\u548c\u9023\u63a5\u65b9\u5f0f\u5c0d\u65bc\u61c9\u7528\u7a0b\u5e8f\u7684\u6027\u80fd\u548c\u7a69\u5b9a\u6027\u81f3\u95dc\u91cd\u8981\u3002IBM\u7684DB2\u6578\u64da\u5eab\u4f5c\u70ba\u4e00\u6b3e\u529f\u80fd\u5f37\u5927\u7684\u95dc\u4fc2\u578b\u6578\u64da\u5eab\u7ba1\u7406\u7cfb\u7d71\uff0c\u63d0\u4f9b\u4e86\u591a\u7a2e\u9023\u63a5\u65b9\u5f0f\u4ee5\u6eff\u8db3\u4e0d\u540c\u7684\u9700\u6c42\u3002\u672c\u6587\u5c07\u63a2\u8a0eDB2\u6578\u64da\u5eab\u7684\u5169\u7a2e\u4e3b\u8981\u9023\u63a5\u65b9\u5f0f\uff1aJDBC\uff08Java Database Connectivity\uff09\u548cODBC\uff08Open Database Connectivity\uff09\uff0c\u4e26\u5206\u6790\u5b83\u5011\u7684\u64cd\u4f5c\u6027\u53ca\u9069\u7528\u5834\u666f\u3002<\/p>\n

1. JDBC\u9023\u63a5\u65b9\u5f0f<\/h2>\n

JDBC\u662f\u4e00\u7a2eJava API\uff0c\u5141\u8a31Java\u61c9\u7528\u7a0b\u5e8f\u8207\u5404\u7a2e\u6578\u64da\u5eab\u9032\u884c\u4ea4\u4e92\u3002DB2\u63d0\u4f9b\u4e86\u5c0dJDBC\u7684\u652f\u6301\uff0c\u4f7f\u5f97Java\u958b\u767c\u8005\u80fd\u5920\u8f15\u9b06\u5730\u9023\u63a5\u548c\u64cd\u4f5cDB2\u6578\u64da\u5eab\u3002<\/p>\n

1.1 \u64cd\u4f5c\u6027<\/h3>\n

\u4f7f\u7528JDBC\u9023\u63a5DB2\u6578\u64da\u5eab\u7684\u64cd\u4f5c\u6027\u76f8\u5c0d\u8f03\u9ad8\uff0c\u56e0\u70ba\u5b83\u63d0\u4f9b\u4e86\u8c50\u5bcc\u7684API\u4f86\u57f7\u884cSQL\u67e5\u8a62\u3001\u66f4\u65b0\u6578\u64da\u548c\u8655\u7406\u7d50\u679c\u96c6\u3002\u4ee5\u4e0b\u662f\u4f7f\u7528JDBC\u9023\u63a5DB2\u7684\u57fa\u672c\u6b65\u9a5f\uff1a<\/p>\n

import java.sql.Connection;\nimport java.sql.DriverManager;\nimport java.sql.ResultSet;\nimport java.sql.Statement;\n\npublic class DB2JDBCExample {\n    public static void main(String[] args) {\n        String url = \"jdbc:db2:\/\/localhost:50000\/YOURDB\";\n        String user = \"YOURUSER\";\n        String password = \"YOURPASSWORD\";\n\n        try {\n            Connection conn = DriverManager.getConnection(url, user, password);\n            Statement stmt = conn.createStatement();\n            ResultSet rs = stmt.executeQuery(\"SELECT * FROM YOURTABLE\");\n\n            while (rs.next()) {\n                System.out.println(rs.getString(\"COLUMN_NAME\"));\n            }\n\n            rs.close();\n            stmt.close();\n            conn.close();\n        } catch (Exception e) {\n            e.printStackTrace();\n        }\n    }\n}\n<\/code><\/pre>\n
\u4e0a\u8ff0\u4ee3\u78bc\u5c55\u793a\u4e86\u5982\u4f55\u4f7f\u7528JDBC\u9023\u63a5DB2\u6578\u64da\u5eab\u4e26\u57f7\u884c\u67e5\u8a62\u3002JDBC\u7684\u512a\u52e2\u5728\u65bc\u5176\u8207Java\u7684\u7dca\u5bc6\u96c6\u6210\uff0c\u958b\u767c\u8005\u53ef\u4ee5\u5229\u7528Java\u7684\u7279\u6027\u4f86\u8655\u7406\u6578\u64da\u3002<\/p>\n
1.2 \u9069\u7528\u5834\u666f<\/h3>\n
JDBC\u7279\u5225\u9069\u5408\u65bcJava\u61c9\u7528\u7a0b\u5e8f\uff0c\u5982Web\u61c9\u7528\u548c\u4f01\u696d\u7d1a\u61c9\u7528\u3002\u7576\u9700\u8981\u9ad8\u6548\u7684\u6578\u64da\u64cd\u4f5c\u548c\u826f\u597d\u7684\u6027\u80fd\u6642\uff0cJDBC\u662f\u9996\u9078\u3002<\/p>\n
2. ODBC\u9023\u63a5\u65b9\u5f0f<\/h2>\n
ODBC\u662f\u4e00\u7a2e\u901a\u7528\u7684\u6578\u64da\u5eab\u9023\u63a5\u6a19\u6e96\uff0c\u5141\u8a31\u61c9\u7528\u7a0b\u5e8f\u901a\u904eODBC\u9a45\u52d5\u7a0b\u5e8f\u8207\u6578\u64da\u5eab\u9032\u884c\u4ea4\u4e92\u3002DB2\u4e5f\u652f\u6301ODBC\uff0c\u9019\u4f7f\u5f97\u975eJava\u61c9\u7528\u7a0b\u5e8f\u80fd\u5920\u8f15\u9b06\u9023\u63a5\u5230DB2\u6578\u64da\u5eab\u3002<\/p>\n
2.1 \u64cd\u4f5c\u6027<\/h3>\n
ODBC\u7684\u64cd\u4f5c\u6027\u540c\u6a23\u4e0d\u5bb9\u5c0f\u89b7\u3002\u5b83\u63d0\u4f9b\u4e86\u4e00\u500b\u6a19\u6e96\u7684API\u4f86\u57f7\u884cSQL\u67e5\u8a62\u548c\u66f4\u65b0\u3002\u4ee5\u4e0b\u662f\u4f7f\u7528ODBC\u9023\u63a5DB2\u7684\u57fa\u672c\u6b65\u9a5f\uff1a<\/p>\n
#include <sql.h>\n#include <sqlext.h>\n\nint main() {\n    SQLHENV henv;\n    SQLHDBC hdbc;\n    SQLHSTMT hstmt;\n    SQLRETURN ret;\n\n    SQLAllocHandle(SQL_HANDLE_ENV, SQL_NULL_HANDLE, &henv);\n    SQLSetEnvAttr(henv, SQL_ATTR_ODBC_VERSION, (SQLPOINTER)SQL_OV_ODBC3, 0);\n    SQLAllocHandle(SQL_HANDLE_DBC, henv, &hdbc);\n\n    SQLCHAR *dsn = (SQLCHAR *)\"DSN=YOUR_DSN;UID=YOURUSER;PWD=YOURPASSWORD;\";\n    ret = SQLDriverConnect(hdbc, NULL, dsn, SQL_NTS, NULL, 0, NULL, SQL_DRIVER_COMPLETE);\n\n    SQLAllocHandle(SQL_HANDLE_STMT, hdbc, &hstmt);\n    SQLExecDirect(hstmt, (SQLCHAR *)\"SELECT * FROM YOURTABLE\", SQL_NTS);\n\n    \/\/ \u8655\u7406\u7d50\u679c\u96c6...\n\n    SQLFreeHandle(SQL_HANDLE_STMT, hstmt);\n    SQLDisconnect(hdbc);\n    SQLFreeHandle(SQL_HANDLE_DBC, hdbc);\n    SQLFreeHandle(SQL_HANDLE_ENV, henv);\n    return 0;\n}\n<\/code><\/pre>\n
ODBC\u7684\u512a\u52e2\u5728\u65bc\u5176\u8de8\u5e73\u53f0\u7684\u7279\u6027\uff0c\u80fd\u5920\u652f\u6301\u591a\u7a2e\u7de8\u7a0b\u8a9e\u8a00\u548c\u74b0\u5883\u3002\u9019\u4f7f\u5f97ODBC\u6210\u70ba\u9700\u8981\u8207\u591a\u7a2e\u6578\u64da\u5eab\u9032\u884c\u4ea4\u4e92\u7684\u61c9\u7528\u7a0b\u5e8f\u7684\u7406\u60f3\u9078\u64c7\u3002<\/p>\n
2.2 \u9069\u7528\u5834\u666f<\/h3>\n
ODBC\u7279\u5225\u9069\u5408\u65bc\u9700\u8981\u8207\u591a\u7a2e\u6578\u64da\u5eab\u9032\u884c\u4ea4\u4e92\u7684\u61c9\u7528\u7a0b\u5e8f\uff0c\u5982\u5831\u544a\u5de5\u5177\u548c\u6578\u64da\u5206\u6790\u5de5\u5177\u3002\u7576\u61c9\u7528\u7a0b\u5e8f\u9700\u8981\u5728\u4e0d\u540c\u7684\u74b0\u5883\u4e2d\u904b\u884c\u6642\uff0cODBC\u63d0\u4f9b\u4e86\u9748\u6d3b\u6027\u3002<\/p>\n
\u7e3d\u7d50<\/h2>\n
\u7e3d\u7684\u4f86\u8aaa\uff0cDB2\u6578\u64da\u5eab\u63d0\u4f9b\u7684JDBC\u548cODBC\u5169\u7a2e\u9023\u63a5\u65b9\u5f0f\u5404\u6709\u5176\u512a\u52e2\u548c\u9069\u7528\u5834\u666f\u3002JDBC\u9069\u5408Java\u61c9\u7528\u7a0b\u5e8f\uff0c\u63d0\u4f9b\u4e86\u9ad8\u6548\u7684\u6578\u64da\u64cd\u4f5c\u80fd\u529b\uff1b\u800cODBC\u5247\u9069\u5408\u9700\u8981\u8de8\u5e73\u53f0\u652f\u6301\u7684\u61c9\u7528\u7a0b\u5e8f\uff0c\u63d0\u4f9b\u4e86\u9748\u6d3b\u7684\u9023\u63a5\u9078\u64c7\u3002\u6839\u64da\u5177\u9ad4\u9700\u6c42\u9078\u64c7\u5408\u9069\u7684\u9023\u63a5\u65b9\u5f0f\uff0c\u5c07\u6709\u52a9\u65bc\u63d0\u5347\u61c9\u7528\u7a0b\u5e8f\u7684\u6027\u80fd\u548c\u7a69\u5b9a\u6027\u3002<\/p>\n
\u5982\u679c\u60a8\u6b63\u5728\u5c0b\u627e\u9ad8\u6548\u7684 VPS<\/a> \u89e3\u6c7a\u65b9\u6848\u4f86\u904b\u884c\u60a8\u7684DB2\u6578\u64da\u5eab\uff0cServer.HK\u63d0\u4f9b\u591a\u7a2e\u9078\u64c7\uff0c\u6eff\u8db3\u60a8\u7684\u9700\u6c42\u3002<\/p>\n","protected":false},"excerpt":{"rendered":"
\u63a2\u7d22DB2\u6578\u64da\u5eab\u7684\u5169\u7a2eDB\u9023\u63a5\u65b9\u5f0f\uff0c\u4e86\u89e3\u5176\u64cd\u4f5c\u6027\u53ca\u512a\u7f3a\u9ede\uff0c\u52a9\u60a8\u9078\u64c7\u6700\u4f73\u9023\u63a5\u65b9\u6848\u3002<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"closed","ping_status":"","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[101],"tags":[],"class_list":["post-60811","post","type-post","status-publish","format-standard","hentry","category-database"],"_links":{"self":[{"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/60811","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"}],"author":[{"embeddable":true,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/comments?post=60811"}],"version-history":[{"count":1,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/60811\/revisions"}],"predecessor-version":[{"id":60812,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/60811\/revisions\/60812"}],"wp:attachment":[{"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/media?parent=60811"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/categories?post=60811"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/tags?post=60811"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}