{"id":5804,"date":"2024-04-16T00:00:37","date_gmt":"2024-04-15T16:00:37","guid":{"rendered":"http:\/\/zyg.luchers.cn\/?p=5804"},"modified":"2024-04-16T00:00:37","modified_gmt":"2024-04-15T16:00:37","slug":"%e4%b8%80%e3%80%81mybatis%e7%ae%80%e4%bb%8b","status":"publish","type":"post","link":"http:\/\/zyg.luchers.cn\/index.php\/2024\/04\/16\/%e4%b8%80%e3%80%81mybatis%e7%ae%80%e4%bb%8b\/","title":{"rendered":"\u4e00\u3001MyBatis\u7b80\u4ecb"},"content":{"rendered":"

\u4e00\u3001MyBatis\u7b80\u4ecb<\/h1>\n

\u5b98\u65b9\u6587\u6863\uff1a\u914d\u7f6e_MyBatis\u4e2d\u6587\u7f51<\/a><\/p>\n

1\u3001\u4ecb\u7ecd<\/h2>\n

1\u3001MyBatis\u6700\u521d\u662fApache\u7684\u4e00\u4e2a\u5f00\u6e90\u9879\u76eeiBatis, 2010\u5e746\u6708\u8fd9\u4e2a\u9879\u76ee\u7531Apache Software Foundation\u8fc1\u79fb\u5230\u4e86Google Code\u3002\u968f\u7740\u5f00\u53d1\u56e2\u961f\u8f6c\u6295Google Code\u65d7\u4e0b\uff0c iBatis3.x\u6b63\u5f0f\u66f4\u540d\u4e3aMyBatis\u3002\u4ee3\u7801\u4e8e2013\u5e7411\u6708\u8fc1\u79fb\u5230Github\u3002<\/p>\n

2\u3001MyBatis \u662f\u4e00\u6b3e\u4f18\u79c0\u7684\u6301\u4e45\u5c42\u6846\u67b6\uff0c\u5b83\u652f\u6301\u81ea\u5b9a\u4e49 SQL\u3001\u5b58\u50a8\u8fc7\u7a0b\u4ee5\u53ca\u9ad8\u7ea7\u6620\u5c04\u3002MyBatis \u514d\u9664\u4e86\u51e0\u4e4e\u6240\u6709\u7684 JDBC \u4ee3\u7801\u4ee5\u53ca\u8bbe\u7f6e\u53c2\u6570\u548c\u83b7\u53d6\u7ed3\u679c\u96c6\u7684\u5de5\u4f5c\u3002MyBatis \u53ef\u4ee5\u901a\u8fc7\u7b80\u5355\u7684 XML \u6216\u6ce8\u89e3\u6765\u914d\u7f6e\u548c\u6620\u5c04\u539f\u59cb\u7c7b\u578b\u3001\u63a5\u53e3\u548c Java POJO\uff08Plain Old Java Objects\uff0c\u666e\u901a\u8001\u5f0f Java \u5bf9\u8c61\uff09\u4e3a\u6570\u636e\u5e93\u4e2d\u7684\u8bb0\u5f55\u3002<\/p>\n

3\u3001\u603b\u7ed3\u4e00\u53e5\u8bdd\u3002\u5c31\u662f\u81ea\u5b9a\u4e49\u3002\u7136\u540e\u9700\u8981\u81ea\u5df1\u53bb\u5199sql\u8bed\u53e5\u3002\u4f46\u662f\u7a0b\u5e8f\u7684\u589e\u5220\u6539\u67e5\u6846\u67b6\u4f1a\u5199\u597d\u3002<\/p>\n

4\u3001\u8fd9\u91cc\u4f7f\u75283.5.11\u7248\u672c<\/p>\n

2\u3001\u6301\u4e45\u5c42\u6846\u67b6\u7684\u5bf9\u6bd4<\/h2>\n

1\u3001JDBC<\/h3>\n
    \n
  • SQL \u5939\u6742\u5728Java\u4ee3\u7801\u4e2d\u8026\u5408\u5ea6\u9ad8\uff0c\u5bfc\u81f4\u786c\u7f16\u7801\u5185\u4f24<\/li>\n
  • \u7ef4\u62a4\u4e0d\u6613\u4e14\u5b9e\u9645\u5f00\u53d1\u9700\u6c42\u4e2d SQL \u6709\u53d8\u5316\uff0c\u9891\u7e41\u4fee\u6539\u7684\u60c5\u51b5\u591a\u89c1<\/li>\n
  • \u4ee3\u7801\u5197\u957f\uff0c\u5f00\u53d1\u6548\u7387\u4f4e<\/li>\n<\/ul>\n

    2\u3001Hibernate \u548c JPA<\/h3>\n
      \n
    • \u64cd\u4f5c\u7b80\u4fbf\uff0c\u5f00\u53d1\u6548\u7387\u9ad8<\/li>\n
    • \u7a0b\u5e8f\u4e2d\u7684\u957f\u96be\u590d\u6742 SQL \u9700\u8981\u7ed5\u8fc7\u6846\u67b6<\/li>\n
    • \u5185\u90e8\u81ea\u52a8\u751f\u6210\u7684 SQL\uff0c\u4e0d\u5bb9\u6613\u505a\u7279\u6b8a\u4f18\u5316<\/li>\n
    • \u57fa\u4e8e\u5168\u6620\u5c04\u7684\u5168\u81ea\u52a8\u6846\u67b6\uff0c\u5927\u91cf\u5b57\u6bb5\u7684 POJO \u8fdb\u884c\u90e8\u5206\u6620\u5c04\u65f6\u6bd4\u8f83\u56f0\u96be\u3002<\/li>\n
    • \u53cd\u5c04\u64cd\u4f5c\u592a\u591a\uff0c\u5bfc\u81f4\u6570\u636e\u5e93\u6027\u80fd\u4e0b\u964d<\/li>\n<\/ul>\n

      3\u3001MyBatis<\/h3>\n
        \n
      • \u8f7b\u91cf\u7ea7\uff0c\u6027\u80fd\u51fa\u8272<\/li>\n
      • SQL \u548c Java \u7f16\u7801\u5206\u5f00\uff0c\u529f\u80fd\u8fb9\u754c\u6e05\u6670\u3002Java\u4ee3\u7801\u4e13\u6ce8\u4e1a\u52a1\u3001SQL\u8bed\u53e5\u4e13\u6ce8\u6570\u636e<\/li>\n
      • \u5f00\u53d1\u6548\u7387\u7a0d\u900a\u4e8e Hibernate\uff0c\u4f46\u662f\u5b8c\u5168\u80fd\u591f\u63a5\u6536<\/li>\n<\/ul>\n

        4\u3001\u5f00\u53d1\u6548\u7387\uff1aHibernate>Mybatis>JDBC<\/p>\n

        5\u3001\u8fd0\u884c\u6548\u7387\uff1aJDBC>Mybatis>Hibernate<\/p>\n

        3\u3001mybatis\u7684\u5feb\u901f\u5165\u95e8<\/h2>\n

        1\u3001\u4f8b\u5b50<\/h3>\n

        1\u3001\u65b0\u5efa\u4e00\u4e2a\u6570\u636e\u5e93<\/p>\n

        CREATE DATABASE `mybatis-example`;\n\nUSE `mybatis-example`;\n\nCREATE TABLE `t_emp`(\n  emp_id INT AUTO_INCREMENT,\n  emp_name CHAR(100),\n  emp_salary DOUBLE(10,5),\n  PRIMARY KEY(emp_id)\n);\n\nINSERT INTO `t_emp`(emp_name,emp_salary) VALUES("tom",200.33);\nINSERT INTO `t_emp`(emp_name,emp_salary) VALUES("jerry",666.66);\nINSERT INTO `t_emp`(emp_name,emp_salary) VALUES("andy",777.77);<\/code><\/pre>\n
        2\u3001\u521b\u5efa\u4e00\u4e2a\u5b9e\u4f53\u7c7b<\/p>\n
        package com.atgui.pojo;\n\npublic class Employee {\n    private int empId;\n    private String empName;\n    private String empSalary;\n\n    public int getEmpId() {\n        return empId;\n    }\n\n    public void setEmpId(int empId) {\n        this.empId = empId;\n    }\n\n    public String getEmpName() {\n        return empName;\n    }\n\n    public void setEmpName(String empName) {\n        this.empName = empName;\n    }\n\n    public String getEmpSalary() {\n        return empSalary;\n    }\n\n    public void setEmpSalary(String empSalary) {\n        this.empSalary = empSalary;\n    }\n\n    @Override\n    public String toString() {\n        return "Employee{" +\n                "empId=" + empId +\n                ", empName='" + empName + '\\'' +\n                ", empSalary='" + empSalary + '\\'' +\n                '}';\n    }\n}\n<\/code><\/pre>\n
        3\u3001\u521b\u5efa\u4e00\u4e2a\u63a5\u53e3Employee.mapper<\/p>\n
        package com.atgui.mapper;\n\nimport com.atgui.pojo.Employee;\n\npublic interface EmployeeMapper {\n\n    Employee selectEmployee(int id);\n}\n<\/code><\/pre>\n
        4\u3001\u521b\u5efa\u4e00\u4e2a\u63a5\u53e3\u5bf9\u5e94\u7684xml\u6587\u4ef6EmployeeMapper.xml<\/p>\n
        <?xml version="1.0" encoding="UTF-8" ?>\n<!DOCTYPE mapper\n        PUBLIC "-\/\/mybatis.org\/\/DTD Mapper 3.0\/\/EN"\n        "https:\/\/mybatis.org\/dtd\/mybatis-3-mapper.dtd">\n<!-- namespace\u7b49\u4e8emapper\u63a5\u53e3\u7c7b\u7684\u5168\u9650\u5b9a\u540d,\u8fd9\u6837\u5b9e\u73b0\u5bf9\u5e94 -->\n<mapper namespace="com.atgui.mapper.EmployeeMapper">\n\n    <!-- \u67e5\u8be2\u4f7f\u7528 select\u6807\u7b7e\n            id = \u65b9\u6cd5\u540d\n            resultType = \u8fd4\u56de\u503c\u7c7b\u578b\n            \u6807\u7b7e\u5185\u7f16\u5199SQL\u8bed\u53e5\n     -->\n    <select id="selectEmployee" resultType="com.atgui.pojo.Employee">\n        select emp_id empId,emp_name empName,emp_salary empSalary\n        from t_emp\n        where emp_id = #{empId}\n    <\/select>\n\n<\/mapper><\/code><\/pre>\n
        5\u3001\u521b\u5efa\u4e00\u4e2amybatis\u7684\u603bxml\u914d\u7f6e\u6587\u4ef6mybatis-config.xml<\/p>\n
        <?xml version="1.0" encoding="UTF-8" ?>\n<!DOCTYPE configuration\n        PUBLIC "-\/\/mybatis.org\/\/DTD Config 3.0\/\/EN"\n        "http:\/\/mybatis.org\/dtd\/mybatis-3-config.dtd">\n<configuration>\n\n    <!-- environments\u8868\u793a\u914d\u7f6eMybatis\u7684\u5f00\u53d1\u73af\u5883\uff0c\u53ef\u4ee5\u914d\u7f6e\u591a\u4e2a\u73af\u5883\uff0c\u5728\u4f17\u591a\u5177\u4f53\u73af\u5883\u4e2d\uff0c\u4f7f\u7528default\u5c5e\u6027\u6307\u5b9a\u5b9e\u9645\u8fd0\u884c\u65f6\u4f7f\u7528\u7684\u73af\u5883\u3002default\u5c5e\u6027\u7684\u53d6\u503c\u662fenvironment\u6807\u7b7e\u7684id\u5c5e\u6027\u7684\u503c\u3002 -->\n    <environments default="development">\n        <!-- environment\u8868\u793a\u914d\u7f6eMybatis\u7684\u4e00\u4e2a\u5177\u4f53\u7684\u73af\u5883 -->\n        <environment id="development">\n            <!-- Mybatis\u7684\u5185\u7f6e\u7684\u4e8b\u52a1\u7ba1\u7406\u5668 -->\n            <transactionManager type="JDBC"\/>\n            <!-- \u914d\u7f6e\u6570\u636e\u6e90 -->\n            <dataSource type="POOLED">\n                <!-- \u5efa\u7acb\u6570\u636e\u5e93\u8fde\u63a5\u7684\u5177\u4f53\u4fe1\u606f -->\n                <property name="driver" value="com.mysql.cj.jdbc.Driver"\/>\n                <property name="url" value="jdbc:mysql:\/\/localhost:3306\/mybatis-example"\/>\n                <property name="username" value="root"\/>\n                <property name="password" value="root"\/>\n            <\/dataSource>\n        <\/environment>\n    <\/environments>\n\n    <mappers>\n        <!-- Mapper\u6ce8\u518c\uff1a\u6307\u5b9aMybatis\u6620\u5c04\u6587\u4ef6\u7684\u5177\u4f53\u4f4d\u7f6e -->\n        <!-- mapper\u6807\u7b7e\uff1a\u914d\u7f6e\u4e00\u4e2a\u5177\u4f53\u7684Mapper\u6620\u5c04\u6587\u4ef6 -->\n        <!-- resource\u5c5e\u6027\uff1a\u6307\u5b9aMapper\u6620\u5c04\u6587\u4ef6\u7684\u5b9e\u9645\u5b58\u50a8\u4f4d\u7f6e\uff0c\u8fd9\u91cc\u9700\u8981\u4f7f\u7528\u4e00\u4e2a\u4ee5\u7c7b\u8def\u5f84\u6839\u76ee\u5f55\u4e3a\u57fa\u51c6\u7684\u76f8\u5bf9\u8def\u5f84 -->\n        <!--    \u5bf9Maven\u5de5\u7a0b\u7684\u76ee\u5f55\u7ed3\u6784\u6765\u8bf4\uff0cresources\u76ee\u5f55\u4e0b\u7684\u5185\u5bb9\u4f1a\u76f4\u63a5\u653e\u5165\u7c7b\u8def\u5f84\uff0c\u6240\u4ee5\u8fd9\u91cc\u6211\u4eec\u53ef\u4ee5\u4ee5resources\u76ee\u5f55\u4e3a\u57fa\u51c6 -->\n        <mapper resource="mappers\/EmployeeMapper.xml"\/>\n    <\/mappers>\n\n<\/configuration><\/code><\/pre>\n
        6\u3001\u521b\u5efa\u4e00\u4e2a\u6d4b\u8bd5\u7c7bMybatisTest<\/p>\n
        package com.atgui;\n\nimport com.atgui.mapper.EmployeeMapper;\nimport com.atgui.pojo.Employee;\nimport org.apache.ibatis.io.Resources;\nimport org.apache.ibatis.session.SqlSession;\nimport org.apache.ibatis.session.SqlSessionFactory;\nimport org.apache.ibatis.session.SqlSessionFactoryBuilder;\nimport org.junit.jupiter.api.Test;\n\nimport java.io.IOException;\nimport java.io.InputStream;\n\npublic class MybatisTest {\n\n    @Test\n    public void testSelectEmployee() throws IOException{\n\/\/        \u58f0\u660eSqlSessionFactory\u5bf9\u8c61\n        String mybatisConfigFilePath = "mybatis-config.xml";\n\/\/        \u4ee5\u8f93\u5165\u6d41\u7684\u65b9\u5f0f\u52a0\u8f7dMybatis\u914d\u7f6e\u6587\u4ef6\n        InputStream inputStream = Resources.getResourceAsStream(mybatisConfigFilePath);\n\/\/        \u57fa\u4e8e\u8bfb\u53d6mybatis\u914d\u7f6e\u6587\u4ef6\u4ee5\u8f93\u5165\u6d41\u521b\u5efaSqlSessionFactory\u5bf9\u8c61\n        SqlSessionFactory sqlSessionFactory = new SqlSessionFactoryBuilder().build(inputStream);\n\/\/        \u4f7f\u7528SqlSessionFactory\u5bf9\u8c61\u5f00\u542f\u4e00\u4e2a\u4f1a\u8bdd\uff0c\u771f\u6b63\u5e72\u6d3b\u7684\u5bf9\u8c61\n        SqlSession session = sqlSessionFactory.openSession();\n\/\/        \u6839\u636eEmployeeMapper\u63a5\u53e3\u7684Class\u5bf9\u8c61\u83b7\u53d6Mapper\u63a5\u53e3\u7c7b\u578b\u7684\u5bf9\u8c61\uff08\u52a8\u6001\u4ee3\u7406\u6280\u672f\uff09\n        EmployeeMapper employeeMapper = session.getMapper(EmployeeMapper.class);\n\/\/        \u8c03\u7528\u4ee3\u7406\u7c7b\u65b9\u6cd5\u53ef\u4ee5\u51fa\u53d1\u5bf9\u5e94\u7684sql\u8bed\u53e5\n        Employee employee = employeeMapper.selectEmployee(1);\n        System.out.println("employee = " + employee);\n\n\/\/        \u5173\u95ed\u6d41\n        session.commit();\n        session.close();\n    }\n}\n<\/code><\/pre>\n
        2\u3001ibatis\u548cMybatis\u7684\u533a\u522b<\/h3>\n
        1\u3001ibatis\u662fapache\u516c\u53f8\u7684\u3002\u7136\u540e\u8f6c\u5165Google Code\u65d7\u4e0b\u3002\u57283.0\u7248\u672c\u540e\u5c31\u4fbf\u6210\u4e86Mybatis<\/p>\n
        2\u3001\u8bf4\u767d\u4e86\uff1amybatis\u5c31\u662f\u5bf9ibatis\u7684\u4e00\u5c42\u5c01\u88c5\u3002<\/p>\n
        3\u3001ibatis\u5b9e\u73b0\u65b9\u5f0f<\/h3>\n
        \"image-20240113114810958\"<\/div><\/p>\n
        1\u3001\u5c31\u662f\u5148\u521b\u5efa\u6570\u636e\u5e93\uff0c\u5b9e\u4f53\u7c7b<\/p>\n
        2\u3001\u7136\u540e\u8fdb\u884cmybatis-config.xml\u7684\u914d\u7f6e<\/p>\n
        3\u3001\u7136\u540e\u5728\u6d4b\u8bd5\u7684\u65f6\u5019\u76f4\u63a5\u4f7f\u7528sqlSession\u63d0\u4f9b\u7684crud\u65b9\u6cd5\u5c31\u53ef\u4ee5\u5bf9\u6570\u636e\u5e93\u8fdb\u884c\u67e5\u8be2<\/p>\n
        4\u3001\u8fd9\u91cc\u4e3e\u4f8b\uff08\u548c\u4e0a\u9762\u4ee3\u7801\u4e00\u6837\uff0c\u53ea\u662f\u6d4b\u8bd5\u8c03\u7528\u7684\u65f6\u5019\u4e0d\u4e00\u6837\uff09<\/p>\n
        package com.atgui;\n\nimport com.atgui.mapper.EmployeeMapper;\nimport com.atgui.pojo.Employee;\nimport org.apache.ibatis.io.Resources;\nimport org.apache.ibatis.session.SqlSession;\nimport org.apache.ibatis.session.SqlSessionFactory;\nimport org.apache.ibatis.session.SqlSessionFactoryBuilder;\nimport org.junit.jupiter.api.Test;\n\nimport java.io.IOException;\nimport java.io.InputStream;\n\npublic class MybatisTest {\n\n    @Test\n    public void testSelectEmployee() throws IOException{\n\/\/        \u58f0\u660eSqlSessionFactory\u5bf9\u8c61\n        String mybatisConfigFilePath = "mybatis-config.xml";\n\/\/        \u4ee5\u8f93\u5165\u6d41\u7684\u65b9\u5f0f\u52a0\u8f7dMybatis\u914d\u7f6e\u6587\u4ef6\n        InputStream inputStream = Resources.getResourceAsStream(mybatisConfigFilePath);\n\/\/        \u57fa\u4e8e\u8bfb\u53d6mybatis\u914d\u7f6e\u6587\u4ef6\u4ee5\u8f93\u5165\u6d41\u521b\u5efaSqlSessionFactory\u5bf9\u8c61\n        SqlSessionFactory sqlSessionFactory = new SqlSessionFactoryBuilder().build(inputStream);\n\/\/        \u4f7f\u7528SqlSessionFactory\u5bf9\u8c61\u5f00\u542f\u4e00\u4e2a\u4f1a\u8bdd\uff0c\u771f\u6b63\u5e72\u6d3b\u7684\u5bf9\u8c61\n        SqlSession session = sqlSessionFactory.openSession();\n\/\/      \u76f4\u63a5\u4f7f\u7528sqlSession\u63d0\u4f9b\u7684crud\u65b9\u6cd5\u8fdb\u884c\u6570\u636e\u5e93\u8c03\u7528\u5c31\u884c\u4e86\n        Employee employee = sqlSession.selectOne("xxx\u5b57\u7b26\u4e32\u6807\u8bc6\uff0c\u5c31\u662fmapper\u4e2d\u7684spaceName=+id",[\u53c2\u6570(\u53ea\u80fd\u6709\u4e00\u4e2a)])\n\n        System.out.println("employee = " + employee);\n\n\/\/        \u5173\u95ed\u6d41\n        session.commit();\n        session.close();\n    }\n}\n<\/code><\/pre>\n
        5\u3001\u7f3a\u70b9<\/p>\n
          \n
        • sql\u8bed\u53e5\u6807\u7b7e\u5bf9\u5e94\u7684\u5b57\u7b26\u4e32\u6807\u8bc6\uff0c\u5bb9\u6613\u51fa\u73b0\u9519\u8bef<\/li>\n
        • \u53c2\u6570\u9700\u8981\u8fdb\u884c\u6574\u5408\u53ea\u80fd\u4f20\u9012\u4e00\u4e2a<\/li>\n
        • \u8fd4\u56de\u503c\u95ee\u9898<\/li>\n<\/ul>\n
          4\u3001MyBatis\u5b9e\u73b0\u65b9\u5f0f<\/h3>\n
          1\u3001\u5c31\u662f\u5bf9ibatis\u8fdb\u884c\u5c01\u88c5<\/p>\n
          2\u3001\u591a\u4e86\u4e00\u4e2a\u63a5\u53e3\u7528\u6765\u89c4\u5b9a\u53c2\u6570\u7c7b\u578b<\/p>\n
          3\u3001\u7136\u540e\u901a\u8fc7\u4e00\u4e2a\u4ee3\u7406\u7c7b\u6765\u5bf9\u589e\u5220\u6539\u67e5\u4ee3\u7801\u8c03\u7528\uff0c\u7136\u540e\u6211\u4eec\u8981\u7528\u4ee3\u7406\u7c7b\u6765\u6267\u884c<\/p>\n
          \"image-20240113115447902\"<\/div><\/p>\n
          5\u3001\u6ce8\u610f\u8bf4\u660e<\/h3>\n
            \n
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