{"id":16440,"date":"2024-10-14T10:13:43","date_gmt":"2024-10-14T02:13:43","guid":{"rendered":"https:\/\/92it.top\/?p=16440"},"modified":"2024-10-14T10:13:43","modified_gmt":"2024-10-14T02:13:43","slug":"jdbc%e5%ad%98%e5%9c%a8%e4%bb%80%e4%b9%88%e9%97%ae%e9%a2%98%ef%bc%9fmybatis%e6%98%af%e5%a6%82%e4%bd%95%e8%a7%a3%e5%86%b3%e7%9a%84%ef%bc%9f","status":"publish","type":"post","link":"https:\/\/92it.top\/?p=16440","title":{"rendered":"JDBC\u5b58\u5728\u4ec0\u4e48\u95ee\u9898\uff1fMyBatis\u662f\u5982\u4f55\u89e3\u51b3\u7684\uff1f"},"content":{"rendered":"\n

\u8f6c\u8f7d\uff1aJDBC\u5b58\u5728\u4ec0\u4e48\u95ee\u9898\uff1fMyBatis\u662f\u5982\u4f55\u89e3\u51b3\u7684\uff1f<\/a><\/p>\n\n\n\n

JDBC\uff08Java Database Connectivity\uff09\u662f Java\u4e2d\u7528\u4e8e\u8fde\u63a5\u548c\u64cd\u4f5c\u6570\u636e\u5e93\u7684\u6807\u51c6API\uff0c\u5b83\u63d0\u4f9b\u4e86\u4e00\u79cd\u901a\u7528\u7684\u65b9\u5f0f\u6765\u8bbf\u95ee\u6570\u636e\u5e93\uff0c\u4f46\u5728\u5b9e\u9645\u5e94\u7528\u4e2d\uff0c\u76f4\u63a5\u4f7f\u7528 JDBC\u4f1a\u9047\u5230\u5f88\u591a\u7684\u95ee\u9898\u3002\u8fd9\u7bc7\u6587\u7ae0\uff0c\u6211\u5c06\u8be6\u7ec6\u63a2\u8ba8 JDBC\u5b58\u5728\u7684\u95ee\u9898\u4ee5\u53ca MyBatis\u662f\u5982\u4f55\u89e3\u51b3\u8fd9\u4e9b\u95ee\u9898\u7684\u3002<\/p>\n\n\n\n

JDBC\u7684\u6838\u5fc3\u7ec4\u4ef6<\/strong><\/p>\n\n\n\n

\n\n\n\n

JDBC\u7684\u6838\u5fc3\u7ec4\u4ef6\u5305\u542b\u4ee5\u4e0b 5\u4e2a\u7ec4\u4ef6:<\/p>\n\n\n\n

    \n
  1. DriverManager<\/li>\n\n\n\n
  2. Connection<\/li>\n\n\n\n
  3. Statement<\/li>\n\n\n\n
  4. ResultSet<\/li>\n\n\n\n
  5. SQLException<\/li>\n<\/ol>\n\n\n\n

    1. DriverManager<\/strong><\/p>\n\n\n\n

    DriverManager\u662fJDBC API\u7684\u6838\u5fc3\u7c7b\u4e4b\u4e00\uff0c\u7528\u4e8e\u7ba1\u7406JDBC\u9a71\u52a8\u7a0b\u5e8f\u7684\u96c6\u5408\uff0c\u5e76\u4e3a\u5e94\u7528\u7a0b\u5e8f\u63d0\u4f9b\u6570\u636e\u5e93\u8fde\u63a5\u3002\u5b83\u901a\u8fc7\u52a0\u8f7d\u9002\u5f53\u7684\u6570\u636e\u5e93\u9a71\u52a8\u7a0b\u5e8f\u6765\u5efa\u7acb\u4e0e\u6570\u636e\u5e93\u7684\u8fde\u63a5\u3002<\/p>\n\n\n\n

    2. Connection<\/strong><\/p>\n\n\n\n

    Connection\u63a5\u53e3\u8868\u793a\u4e0e\u7279\u5b9a\u6570\u636e\u5e93\u7684\u8fde\u63a5\u3002\u5b83\u63d0\u4f9b\u4e86\u521b\u5efaSQL\u8bed\u53e5\u3001\u63d0\u4ea4\u548c\u56de\u6eda\u4e8b\u52a1\u3001\u5173\u95ed\u8fde\u63a5\u7b49\u65b9\u6cd5\u3002\u901a\u8fc7Connection\uff0c\u5e94\u7528\u7a0b\u5e8f\u53ef\u4ee5\u4e0e\u6570\u636e\u5e93\u8fdb\u884c\u4ea4\u4e92\u3002<\/p>\n\n\n\n

    3. Statement<\/strong><\/p>\n\n\n\n

    Statement\u63a5\u53e3\u7528\u4e8e\u6267\u884c\u9759\u6001SQL\u8bed\u53e5\u5e76\u8fd4\u56de\u5176\u751f\u6210\u7684\u7ed3\u679c\u3002JDBC\u63d0\u4f9b\u4e86\u4e09\u79cd\u7c7b\u578b\u7684Statement\uff1aStatement\u3001PreparedStatement\u548cCallableStatement\uff0c\u5206\u522b\u7528\u4e8e\u6267\u884c\u7b80\u5355\u7684SQL\u8bed\u53e5\u3001\u9884\u7f16\u8bd1\u7684SQL\u8bed\u53e5\u548c\u5b58\u50a8\u8fc7\u7a0b\u3002<\/p>\n\n\n\n

    4. ResultSet<\/strong><\/p>\n\n\n\n

    ResultSet\u63a5\u53e3\u8868\u793a\u6570\u636e\u5e93\u67e5\u8be2\u7684\u7ed3\u679c\u96c6\u3002\u5b83\u63d0\u4f9b\u4e86\u4ece\u7ed3\u679c\u96c6\u4e2d\u68c0\u7d22\u6570\u636e\u7684\u65b9\u6cd5\uff0c\u5e76\u652f\u6301\u8fed\u4ee3\u7ed3\u679c\u96c6\u4e2d\u7684\u884c\u3002<\/p>\n\n\n\n

    5. SQLException<\/strong><\/p>\n\n\n\n

    SQLException\u662f JDBC API\u4e2d\u7528\u4e8e\u5904\u7406\u6570\u636e\u5e93\u8bbf\u95ee\u9519\u8bef\u7684\u5f02\u5e38\u7c7b\u3002\u5b83\u63d0\u4f9b\u4e86\u8be6\u7ec6\u7684\u9519\u8bef\u4fe1\u606f\uff0c\u5305\u62ec\u9519\u8bef\u4ee3\u7801\u548cSQL\u72b6\u6001\u3002<\/p>\n\n\n\n

    JDBC\u5b58\u5728\u7684\u95ee\u9898<\/strong><\/p>\n\n\n\n

    \n\n\n\n

    1. \u7e41\u7410\u7684\u4ee3\u7801\u7f16\u5199<\/strong><\/p>\n\n\n\n

    \u5728JDBC\u4e2d\uff0c\u5f00\u53d1\u8005\u9700\u8981\u7f16\u5199\u5927\u91cf\u7684\u4ee3\u7801\u6765\u5904\u7406\u6570\u636e\u5e93\u8fde\u63a5\u3001SQL\u8bed\u53e5\u7684\u521b\u5efa\u548c\u6267\u884c\u3001\u7ed3\u679c\u96c6\u7684\u5904\u7406\u7b49\u3002\u5bf9\u4e8e\u6bcf\u4e00\u4e2a\u6570\u636e\u5e93\u64cd\u4f5c\uff0c\u901a\u5e38\u9700\u8981\u6267\u884c\u4e00\u7cfb\u5217\u6807\u51c6\u6b65\u9aa4\uff0c\u5305\u62ec\u83b7\u53d6\u8fde\u63a5\u3001\u521b\u5efa\u8bed\u53e5\u3001\u6267\u884c\u67e5\u8be2\u3001\u5904\u7406\u7ed3\u679c\u96c6\u548c\u5173\u95ed\u8fde\u63a5\u3002\u8fd9\u79cd\u91cd\u590d\u7684\u4ee3\u7801\u5165\u4fb5\u6027\u592a\u5f3a\uff0c\u5f88\u5bb9\u6613\u5bfc\u81f4\u4ee3\u7801\u81c3\u80bf\u3001\u4e0d\u6613\u7ef4\u62a4\u3002<\/p>\n\n\n\n

    2. \u624b\u52a8\u7ba1\u7406\u8d44\u6e90<\/strong><\/p>\n\n\n\n

    JDBC\u8981\u6c42\u5f00\u53d1\u8005\u624b\u52a8\u7ba1\u7406\u6570\u636e\u5e93\u8fde\u63a5\u3001\u8bed\u53e5\u548c\u7ed3\u679c\u96c6\u7684\u5173\u95ed\u3002\u8fd9\u4e0d\u4ec5\u5bb9\u6613\u5bfc\u81f4\u8d44\u6e90\u6cc4\u9732\uff0c\u800c\u4e14\u589e\u52a0\u4e86\u4ee3\u7801\u7684\u590d\u6742\u6027\u548c\u51fa\u9519\u7684\u53ef\u80fd\u6027\uff0c\u7279\u522b\u662f\u5728\u5f02\u5e38\u5904\u7406\u90e8\u5206\uff0c\u786e\u4fdd\u6240\u6709\u8d44\u6e90\u90fd\u88ab\u6b63\u786e\u5173\u95ed\u662f\u4e00\u9879\u6311\u6218\u3002<\/p>\n\n\n\n

    3. SQL\u8bed\u53e5\u7684\u786c\u7f16\u7801<\/strong><\/p>\n\n\n\n

    \u5728JDBC\u4e2d\uff0cSQL\u8bed\u53e5\u901a\u5e38\u662f\u786c\u7f16\u7801\u5728 Java\u4ee3\u7801\u4e2d\u7684\u3002\u8fd9\u79cd\u505a\u6cd5\u4f7f\u5f97 SQL\u548c Java\u4ee3\u7801\u7d27\u5bc6\u8026\u5408\uff0c\u589e\u52a0\u4e86\u4ee3\u7801\u7684\u7ef4\u62a4\u96be\u5ea6\u3002\u5982\u679c\u6570\u636e\u5e93\u8868\u7ed3\u6784\u53d1\u751f\u53d8\u5316\uff0c\u9700\u8981\u5728\u4ee3\u7801\u4e2d\u624b\u52a8\u66f4\u65b0SQL\u8bed\u53e5\u3002<\/p>\n\n\n\n

    4. \u7f3a\u4e4f\u5bf9\u8c61\u6620\u5c04<\/strong><\/p>\n\n\n\n

    JDBC\u76f4\u63a5\u5904\u7406\u7ed3\u679c\u96c6\uff08ResultSet\uff09\uff0c\u5f00\u53d1\u8005\u9700\u8981\u624b\u52a8\u5c06\u7ed3\u679c\u96c6\u4e2d\u7684\u6570\u636e\u6620\u5c04\u5230 Java\u5bf9\u8c61\u3002\u8fd9\u79cd\u624b\u52a8\u6620\u5c04\u4e0d\u4ec5\u7e41\u7410\uff0c\u800c\u4e14\u5bb9\u6613\u51fa\u9519\uff0c\u5c24\u5176\u662f\u5728\u5904\u7406\u590d\u6742\u7684\u5bf9\u8c61\u5173\u7cfb\u65f6\u3002<\/p>\n\n\n\n

    5. \u4e8b\u52a1\u7ba1\u7406\u590d\u6742<\/strong><\/p>\n\n\n\n

    \u867d\u7136JDBC\u652f\u6301\u4e8b\u52a1\u7ba1\u7406\uff0c\u4f46\u5f00\u53d1\u8005\u9700\u8981\u624b\u52a8\u7f16\u5199\u4ee3\u7801\u6765\u5904\u7406\u4e8b\u52a1\u7684\u5f00\u59cb\u3001\u63d0\u4ea4\u548c\u56de\u6eda\u3002\u8fd9\u79cd\u624b\u52a8\u7ba1\u7406\u589e\u52a0\u4e86\u4ee3\u7801\u7684\u590d\u6742\u6027\uff0c\u7279\u522b\u662f\u5728\u5904\u7406\u591a\u4e2a\u6570\u636e\u5e93\u64cd\u4f5c\u9700\u8981\u5728\u4e00\u4e2a\u4e8b\u52a1\u4e2d\u5b8c\u6210\u65f6\u3002<\/p>\n\n\n\n

    6. \u7f3a\u4e4f\u7f13\u5b58\u652f\u6301<\/strong><\/p>\n\n\n\n

    JDBC\u672c\u8eab\u4e0d\u63d0\u4f9b\u7f13\u5b58\u673a\u5236\uff0c\u6240\u6709\u7684\u67e5\u8be2\u90fd\u76f4\u63a5\u4ece\u6570\u636e\u5e93\u4e2d\u8bfb\u53d6\u6570\u636e\u3002\u8fd9\u53ef\u80fd\u5bfc\u81f4\u6027\u80fd\u95ee\u9898\uff0c\u7279\u522b\u662f\u5728\u9891\u7e41\u8bbf\u95ee\u76f8\u540c\u6570\u636e\u7684\u60c5\u51b5\u4e0b\u3002<\/p>\n\n\n\n

    \u4e3a\u4e86\u66f4\u597d\u5730\u5c55\u793aJDBC\u5b58\u5728\u7684\u95ee\u9898\uff0c\u6211\u4eec\u7528\u4e00\u4e2a\u7b80\u5355\u7684\u793a\u4f8b\u8fdb\u884c\u8bf4\u660e\uff1a\u5047\u8bbe\u9700\u8981\u67e5\u8be2\u4e00\u4e2a\u7528\u6237\u8868\uff0c\u5e76\u5c06\u7ed3\u679c\u6620\u5c04\u5230 Java\u5bf9\u8c61\u4e2d\uff0c\u4f7f\u7528JDBC\u7684\u4ee3\u7801\u5982\u4e0b\uff1a<\/p>\n\n\n\n

    public User getUserById(int id) {\n    Connection conn = null;\n    PreparedStatement stmt = null;\n    ResultSet rs = null;\n    User user = null;\n    try {\n        \/\/ 1. \u52a0\u8f7dJDBC\u9a71\u52a8\u7a0b\u5e8f\n        Class.forName(\"com.mysql.cj.jdbc.Driver\");\n        \/\/ 2. \u5efa\u7acb\u6570\u636e\u5e93\u8fde\u63a5\n        connection = DriverManager.getConnection(\"jdbc:mysql:\/\/localhost:3306\/mydatabase\", \"username\", \"password\");\n        \/\/ 3. \u521b\u5efaSQL\u8bed\u53e5\u5bf9\u8c61\n        String sql = \"SELECT id, username, email FROM users WHERE id = ?\";\n        stmt = connection.prepareStatement(sql);\n        stmt.setInt(1, id);\n        \/\/ 4. \u6267\u884cSQL\u8bed\u53e5\n        rs = stmt.executeQuery();\n        \/\/ 5. \u5904\u7406\u7ed3\u679c\u96c6\n        if (rs.next()) {\n            user = new User();\n            user.setId(rs.getInt(\"id\"));\n            user.setUsername(rs.getString(\"username\"));\n            user.setEmail(rs.getString(\"email\"));\n        }\n    } catch (SQLException e) {\n        e.printStackTrace();\n    } finally {\n        try {\n            \/\/ 6. \u5173\u95ed\u8d44\u6e90\n            if (rs != null) rs.close();\n            if (stmt != null) stmt.close();\n            if (conn != null) conn.close();\n        } catch (SQLException e) {\n            e.printStackTrace();\n        }\n    }\n    return user;\n}<\/pre>\n\n\n\n
    \u5728\u4e0a\u9762\u8fd9\u4e2a\u4f8b\u5b50\u4e2d\uff0c\u7ba1\u7406\u6570\u636e\u5e93\u8fde\u63a5\u3001SQL\u8bed\u53e5\u7684\u6267\u884c\u548c\u7ed3\u679c\u96c6\u7684\u5904\u7406\u90fd\u9700\u8981\u6211\u4eec\u624b\u52a8\u6765\u7ba1\u7406\uff0c\u770b\u8d77\u6765\u592a\u81c3\u80bf\uff0c\u5f88\u5bb9\u6613\u51fa\u9519\u3002\u4f30\u8ba1\u5927\u5bb6\u770b\u5230\u8fd9\u79cd\u4ee3\u7801\uff0c\u80af\u5b9a\u8981\u5410\u69fd\u4e00\u756a\u3002<\/p>\n\n\n\n
    \u65e2\u7136 JDBC\u5b58\u5728\u8fd9\u4e48\u591a\u95ee\u9898\uff0c\u90a3\u4e48\uff0cMyBatis\u662f\u5982\u4f55\u89e3\u51b3\u8fd9\u4e9b\u95ee\u9898\u7684\u5462\uff1f<\/p>\n\n\n\n
    MyBatis\u5982\u4f55\u89e3\u51b3\u8fd9\u4e9b\u95ee\u9898\uff1f<\/strong><\/p>\n\n\n\n
    \n\n\n\n
    MyBatis \u662f\u4e00\u4e2a\u6d41\u884c\u7684\u6301\u4e45\u5c42\u6846\u67b6\uff0c\u5728\u56fd\u5185\u5360\u636e\u4e86\u5f88\u5927\u4e00\u90e8\u5206\u5e02\u573a\uff0c\u5b83\u652f\u6301\u5b9a\u5236\u5316SQL\u3001\u5b58\u50a8\u8fc7\u7a0b\u4ee5\u53ca\u9ad8\u7ea7\u6620\u5c04\u7b49\u529f\u80fd\uff0c\u5927\u5927\u7b80\u5316\u4e86JDBC\u7684\u4f7f\u7528\uff0c\u5e76\u63d0\u4f9b\u4e86\u4e00\u4e9b\u989d\u5916\u7684\u529f\u80fd\u6765\u89e3\u51b3\u4e0a\u8ff0\u95ee\u9898\u3002<\/p>\n\n\n\n
    MyBatis\u672c\u8d28\u4e0a\u662f\u4e00\u4e2a\u5bf9 JDBC\u7684\u5c01\u88c5\uff0c\u5b83\u5229\u7528JDBC\u6765\u6267\u884c\u5e95\u5c42\u7684\u6570\u636e\u5e93\u64cd\u4f5c\u3002\u6240\u6709 MyBatis\u7684\u6570\u636e\u5e93\u4ea4\u4e92\u6700\u7ec8\u90fd\u662f\u901a\u8fc7 JDBC\u6765\u5b9e\u73b0\u7684\u3002<\/p>\n\n\n\n
    1. \u7b80\u5316\u4ee3\u7801\u7f16\u5199<\/strong><\/p>\n\n\n\n
    MyBatis\u901a\u8fc7 XML\u6587\u4ef6\u6216\u6ce8\u89e3\u65b9\u5f0f\u5b9a\u4e49 SQL\u8bed\u53e5\uff0c\u5c06 SQL\u4ece Java\u4ee3\u7801\u4e2d\u5206\u79bb\u51fa\u6765\u3002\u5f00\u53d1\u8005\u4e0d\u518d\u9700\u8981\u624b\u52a8\u7f16\u5199\u83b7\u53d6\u8fde\u63a5\u3001\u521b\u5efa\u8bed\u53e5\u548c\u5904\u7406\u7ed3\u679c\u96c6\u7684\u4ee3\u7801\uff0cMyBatis\u4f1a\u81ea\u52a8\u5904\u7406\u8fd9\u4e9b\u7ec6\u8282\u3002<\/p>\n\n\n\n
    \u4f8b\u5982\uff0cMyBatis\u63d0\u4f9b\u4e86\u81ea\u52a8\u6620\u5c04\u673a\u5236\uff0c\u53ef\u4ee5\u5c06\u67e5\u8be2\u7ed3\u679c\u76f4\u63a5\u6620\u5c04\u5230Java\u5bf9\u8c61\u4e0a\uff0c\u51cf\u5c11\u4e86\u624b\u52a8\u6620\u5c04\u7684\u4ee3\u7801\u91cf\u3002<\/p>\n\n\n\n
    2. \u81ea\u52a8\u8d44\u6e90\u7ba1\u7406<\/strong><\/p>\n\n\n\n
    MyBatis\u6846\u67b6\u81ea\u52a8\u7ba1\u7406\u6570\u636e\u5e93\u8fde\u63a5\u7684\u83b7\u53d6\u548c\u91ca\u653e\uff0c\u5f00\u53d1\u8005\u4e0d\u9700\u8981\u624b\u52a8\u5173\u95ed\u8fde\u63a5\u3001\u8bed\u53e5\u548c\u7ed3\u679c\u96c6\u3002\u8fd9\u51cf\u5c11\u4e86\u8d44\u6e90\u6cc4\u9732\u7684\u98ce\u9669\uff0c\u5e76\u7b80\u5316\u4e86\u4ee3\u7801\u3002<\/p>\n\n\n\n
    3. SQL\u4e0e\u4ee3\u7801\u5206\u79bb<\/strong><\/p>\n\n\n\n
    MyBatis\u5141\u8bb8\u5c06SQL\u8bed\u53e5\u653e\u5728XML\u914d\u7f6e\u6587\u4ef6\u4e2d\u6216\u8005\u4f7f\u7528\u6ce8\u89e3\uff0c\u8fd9\u6837SQL\u548cJava\u4ee3\u7801\u5c31\u88ab\u5206\u79bb\u5f00\u6765\u3002\u8fd9\u79cd\u5206\u79bb\u4f7f\u5f97\u4ee3\u7801\u53d8\u5f97\u66f4\u52a0\u6e05\u6670\u3001\u6613\u4e8e\u7ef4\u62a4\u3002\u540c\u65f6\uff0cSQL\u8bed\u53e5\u7684\u4fee\u6539\u4e0d\u9700\u8981\u91cd\u65b0\u7f16\u8bd1Java\u4ee3\u7801\uff0c\u53ea\u9700\u8981\u4fee\u6539XML\u6587\u4ef6\u5373\u53ef\u3002<\/p>\n\n\n\n
    4. \u652f\u6301\u5bf9\u8c61\u5173\u7cfb\u6620\u5c04\uff08ORM\uff09<\/strong><\/p>\n\n\n\n
    MyBatis\u63d0\u4f9b\u4e86\u5f3a\u5927\u7684\u7ed3\u679c\u6620\u5c04\u529f\u80fd\uff0c\u652f\u6301\u5c06\u6570\u636e\u5e93\u4e2d\u7684\u7ed3\u679c\u96c6\u76f4\u63a5\u6620\u5c04\u5230\u590d\u6742\u7684Java\u5bf9\u8c61\u7ed3\u6784\u4e2d\u3002\u8fd9\u79cd\u6620\u5c04\u4e0d\u4ec5\u652f\u6301\u7b80\u5355\u7684\u5c5e\u6027\u6620\u5c04\uff0c\u8fd8\u652f\u6301\u4e00\u5bf9\u591a\u3001\u591a\u5bf9\u591a\u7b49\u590d\u6742\u5173\u7cfb\u7684\u6620\u5c04\u3002<\/p>\n\n\n\n
    5. \u4e8b\u52a1\u7ba1\u7406\u7684\u7b80\u5316<\/strong><\/p>\n\n\n\n
    MyBatis\u53ef\u4ee5\u4e0eSpring\u6846\u67b6\u96c6\u6210\uff0c\u4ece\u800c\u5229\u7528Spring\u7684\u58f0\u660e\u5f0f\u4e8b\u52a1\u7ba1\u7406\u529f\u80fd\u3002\u8fd9\u6837\uff0c\u5f00\u53d1\u8005\u53ef\u4ee5\u901a\u8fc7\u7b80\u5355\u7684\u6ce8\u89e3\u6765\u7ba1\u7406\u4e8b\u52a1\uff0c\u800c\u4e0d\u9700\u8981\u624b\u52a8\u7f16\u5199\u4e8b\u52a1\u7ba1\u7406\u4ee3\u7801\u3002<\/p>\n\n\n\n
    6. \u7f13\u5b58\u652f\u6301<\/strong><\/p>\n\n\n\n
    MyBatis\u5185\u7f6e\u4e86\u4e00\u7ea7\u7f13\u5b58\u548c\u4e8c\u7ea7\u7f13\u5b58\u673a\u5236\u3002\u4e00\u7ea7\u7f13\u5b58\u662fSqlSession\u7ea7\u522b\u7684\u7f13\u5b58\uff0c\u9ed8\u8ba4\u5f00\u542f\uff0c\u751f\u547d\u5468\u671f\u4e0eSqlSession\u76f8\u540c\u3002\u4e8c\u7ea7\u7f13\u5b58\u662fMapper\u7ea7\u522b\u7684\u7f13\u5b58\uff0c\u53ef\u4ee5\u901a\u8fc7\u914d\u7f6e\u5f00\u542f\u3002\u8fd9\u4e9b\u7f13\u5b58\u673a\u5236\u53ef\u4ee5\u663e\u8457\u63d0\u9ad8\u5e94\u7528\u7684\u6027\u80fd\u3002<\/p>\n\n\n\n
    \u4e3a\u4e86\u66f4\u597d\u5730\u7406\u89e3 MyBatis\u662f\u5982\u4f55\u89e3\u51b3JDBC\u7684\u95ee\u9898\uff0c\u6211\u4eec\u8fd8\u662f\u901a\u8fc7\u4e0a\u9762\u7684\u793a\u4f8b\u6765\u8bf4\u660e\u3002<\/p>\n\n\n\n
    \u9996\u5148\uff0c\u6211\u4eec\u9700\u8981\u5b9a\u4e49\u4e00\u4e2a XML\u6620\u5c04\u6587\u4ef6\uff08UserMapper.xml\uff09\uff1a<\/p>\n\n\n\n
    <mapper namespace=\"com.example.UserMapper\">\n    <select id=\"getUserById\" parameterType=\"int\" resultType=\"User\">\n        SELECT id, username, email FROM users WHERE id = #{id}\n    <\/select>\n<\/mapper><\/pre>\n\n\n\n
    \u7136\u540e\uff0c\u6211\u4eec\u53ef\u4ee5\u5728 Java\u4ee3\u7801\u4e2d\u8c03\u7528\u8fd9\u4e2a\u6620\u5c04\uff1a<\/p>\n\n\n\n
    public interface UserMapper {\n    User getUserById(int id);\n}\n\n\/\/ \u5728\u670d\u52a1\u5c42\u8c03\u7528\nUserMapper mapper = sqlSession.getMapper(UserMapper.class);\nUser user = mapper.getUserById(1);<\/pre>\n\n\n\n
    \u5728\u4e0a\u9762\u8fd9\u4e2a\u4f8b\u5b50\u4e2d\uff0c\u4ee3\u7801\u804c\u8d23\u5f88\u6e05\u6670\uff0cMyBatis\u81ea\u52a8\u5904\u7406\u4e86 SQL\u7684\u6267\u884c\u548c\u7ed3\u679c\u96c6\u7684\u6620\u5c04\uff0c\u6211\u4eec\u53ea\u9700\u8981\u5b9a\u4e49 SQL\u8bed\u53e5\u548c Java\u63a5\u53e3\u5373\u53ef\u3002<\/p>\n\n\n\n
    \u603b\u7ed3<\/strong><\/p>\n\n\n\n
    \n\n\n\n
    \u672c\u6587\uff0c\u6211\u4eec\u5206\u6790\u4e86 JDBC\u7684\u6838\u5fc3\u7ec4\u4ef6\uff0c\u4f7f\u7528\u5b58\u5728\u7684\u95ee\u9898\u4ee5\u53ca Mybatis\u5982\u4f55\u89e3\u51b3\u8fd9\u4e9b\u95ee\u9898\uff0c\u5bf9\u4e8e\u4e00\u4e9b\u51fa\u9053\u6bd4\u8f83\u65e9\u6216\u8005\u63a5\u89e6\u8fc7 JDBC\u8001\u9879\u76ee\u7684Java\u7a0b\u5e8f\u5458\u6765\u8bf4\uff0c\u5bf9 JDBC\u7684\u4f7f\u7528\u53ef\u80fd\u8fd8\u6709\u4f53\u611f\u3002\u800c\u73b0\u5728\u5927\u90e8\u5206\u9879\u76ee\uff0cHibernate\u548c Mybatis\u8fd9\u4e9b\u5bf9\u8c61\u5173\u7cfb\u6620\u5c04\uff08ORM\uff09\u6846\u67b6\u5bf9 JDBC\u505a\u4e86\u5f88\u597d\u7684\u62bd\u8c61\u548c\u5c01\u88c5\uff0c\u63d0\u4f9b\u4e86\u66f4\u52a0\u9762\u5411\u5bf9\u8c61\u7684\u6570\u636e\u5e93\u64cd\u4f5c\u65b9\u5f0f\u3002\u56e0\u6b64\uff0c\u5f00\u53d1\u8005\u4e0d\u9700\u8981\u76f4\u63a5\u5904\u7406 JDBC\u7684API\uff0c\u800c\u662f\u76f4\u63a5\u9762\u5411 ORM\u3002<\/p>\n\n\n\n
    \u4f46\u662f\uff0c\u4f46\u662f\uff0c\u4f46\u662f\uff0c\u91cd\u8981\u7684\u4e8b\u60c5\u8bf4\u4e09\u904d\uff1a\u5982\u679c\u4f60\u60f3\u6210\u4e3a\u4e00\u4e2a\u4f18\u79c0\u7684\u5de5\u7a0b\u5e08\uff0c\u7406\u89e3\u5e95\u5c42\u539f\u7406\u662f\u5fc5\u4fee\u8bfe\uff0c\u5c3d\u7ba1ORM\u7ed9\u6211\u4eec\u7684\u5f00\u53d1\u5e26\u6765\u4e86\u4fbf\u6377\uff0c\u4f46\u662f\u7406\u89e3JDBC\u7684\u539f\u7406\uff0c\u53ef\u4ee5\u5e2e\u52a9\u6211\u4eec\u66f4\u597d\u5730\u7406\u89e3 Hibernate\u548c Mybatis\u8fd9\u4e9b\u4f18\u79c0\u7684 ORM\u6846\u67b6\u3002<\/p>\n","protected":false},"excerpt":{"rendered":"
    \u8f6c\u8f7d\uff1aJDBC\u5b58\u5728\u4ec0\u4e48\u95ee\u9898\uff1fMyBatis\u662f\u5982\u4f55\u89e3\u51b3\u7684\uff1f JDBC\uff08Java Database Connect […]<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"closed","ping_status":"","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[26,23],"tags":[],"_links":{"self":[{"href":"https:\/\/92it.top\/index.php?rest_route=\/wp\/v2\/posts\/16440"}],"collection":[{"href":"https:\/\/92it.top\/index.php?rest_route=\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/92it.top\/index.php?rest_route=\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/92it.top\/index.php?rest_route=\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/92it.top\/index.php?rest_route=%2Fwp%2Fv2%2Fcomments&post=16440"}],"version-history":[{"count":1,"href":"https:\/\/92it.top\/index.php?rest_route=\/wp\/v2\/posts\/16440\/revisions"}],"predecessor-version":[{"id":16441,"href":"https:\/\/92it.top\/index.php?rest_route=\/wp\/v2\/posts\/16440\/revisions\/16441"}],"wp:attachment":[{"href":"https:\/\/92it.top\/index.php?rest_route=%2Fwp%2Fv2%2Fmedia&parent=16440"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/92it.top\/index.php?rest_route=%2Fwp%2Fv2%2Fcategories&post=16440"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/92it.top\/index.php?rest_route=%2Fwp%2Fv2%2Ftags&post=16440"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}