{"id":3066,"date":"2023-01-01T17:07:09","date_gmt":"2023-01-01T09:07:09","guid":{"rendered":"https:\/\/qaqaq.top\/?p=3066"},"modified":"2023-01-03T20:14:43","modified_gmt":"2023-01-03T12:14:43","slug":"%e6%90%ad%e5%bb%bamybatis%e4%bb%a3%e7%a0%81","status":"publish","type":"post","link":"https:\/\/qaqaq.top\/?p=3066","title":{"rendered":"\u642d\u5efaMyBatis\u548cMyBatis\u7684\u589e\u5220\u6539\u67e5\u4ee3\u7801"},"content":{"rendered":"\n

pom.xml<\/p>\n\n\n\n

<project xmlns=\"http:\/\/maven.apache.org\/POM\/4.0.0\" xmlns:xsi=\"http:\/\/www.w3.org\/2001\/XMLSchema-instance\"\n  xsi:schemaLocation=\"http:\/\/maven.apache.org\/POM\/4.0.0 http:\/\/maven.apache.org\/xsd\/maven-4.0.0.xsd\">\n  <modelVersion>4.0.0<\/modelVersion>\n\n  <groupId>top.qaqaq.mybatis<\/groupId>\n  <artifactId>MyBatis_demo<\/artifactId>\n  <version>1.0-SNAPSHOT<\/version>\n  <packaging>jar<\/packaging>\n\n  <name>MyBatis_demo<\/name>\n  <url>http:\/\/maven.apache.org<\/url>\n\n  <properties>\n    <project.build.sourceEncoding>UTF-8<\/project.build.sourceEncoding>\n  <\/properties>\n\n  <dependencies>\n    <dependency>\n      <groupId>junit<\/groupId>\n      <artifactId>junit<\/artifactId>\n      <version>3.8.1<\/version>\n      <scope>test<\/scope>\n    <\/dependency>\n\n    <!-- Mybatis\u6838\u5fc3 -->\n    <dependency>\n      <groupId>org.mybatis<\/groupId>\n      <artifactId>mybatis<\/artifactId>\n      <version>3.5.7<\/version>\n    <\/dependency>\n    <!-- junit\u6d4b\u8bd5 -->\n    <dependency>\n      <groupId>junit<\/groupId>\n      <artifactId>junit<\/artifactId>\n      <version>4.12<\/version>\n      <scope>test<\/scope>\n    <\/dependency>\n    <!-- MySQL\u9a71\u52a8 -->\n    <dependency>\n      <groupId>mysql<\/groupId>\n      <artifactId>mysql-connector-java<\/artifactId>\n      <version>8.0.31<\/version>\n    <\/dependency>\n    <!-- log4j\u65e5\u5fd7 -->\n    <dependency>\n      <groupId>log4j<\/groupId>\n      <artifactId>log4j<\/artifactId>\n      <version>1.2.17<\/version>\n    <\/dependency>\n\n  <\/dependencies>\n<\/project>\n<\/code><\/pre>\n\n\n\n
resources<\/p>\n\n\n\n
mybatis-config.xml<\/p>\n\n\n\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    <!-- \u914d\u7f6e\u8fde\u63a5\u6570\u636e\u5e93\u7684\u73af\u5883 -->\n    <environments default=\"development\">\n        <environment id=\"development\">\n            <transactionManager type=\"JDBC\"\/>\n            <dataSource type=\"POOLED\">\n                <property name=\"driver\" value=\"com.mysql.cj.jdbc.Driver\"\/>\n                <property name=\"url\" value=\"jdbc:mysql:\/\/localhost:3306\/mybatis\"\/>\n                <property name=\"username\" value=\"root\"\/>\n                <property name=\"password\" value=\"123456\"\/>\n            <\/dataSource>\n        <\/environment>\n    <\/environments>\n    <!-- \u5f15\u5165\u6620\u5c04\u6587\u4ef6 -->\n    <mappers>\n        <mapper resource=\"mappers\/UserMapper.xml\"\/>\n    <\/mappers>\n<\/configuration><\/code><\/pre>\n\n\n\n
log4j.xml<\/p>\n\n\n\n
<?xml version=\"1.0\" encoding=\"UTF-8\" ?>\n<!DOCTYPE log4j:configuration SYSTEM \"log4j.dtd\">\n<log4j:configuration xmlns:log4j=\"http:\/\/jakarta.apache.org\/log4j\/\">\n    <appender name=\"STDOUT\" class=\"org.apache.log4j.ConsoleAppender\">\n        <param name=\"Encoding\" value=\"UTF-8\" \/>\n        <layout class=\"org.apache.log4j.PatternLayout\">\n            <param name=\"ConversionPattern\" value=\"%-5p %d{MM-dd HH:mm:ss,SSS}%m (%F:%L) \\n\" \/>\n        <\/layout>\n    <\/appender>\n    <logger name=\"java.sql\">\n        <level value=\"debug\" \/>\n    <\/logger>\n    <logger name=\"org.apache.ibatis\">\n        <level value=\"info\" \/>\n    <\/logger>\n    <root>\n        <level value=\"debug\" \/>\n        <appender-ref ref=\"STDOUT\" \/>\n    <\/root>\n<\/log4j:configuration><\/code><\/pre>\n\n\n\n
resources\/mappers<\/p>\n\n\n\n
UserMapper.xml<\/h3>\n\n\n\n
<?xml version=\"1.0\" encoding=\"UTF-8\" ?>\n<!DOCTYPE mapper\n        PUBLIC \"-\/\/mybatis.org\/\/DTD Mapper 3.0\/\/EN\"\n        \"http:\/\/mybatis.org\/dtd\/mybatis-3-mapper.dtd\">\n<mapper namespace=\"top.qaqaq.mybatis.mapper.UserMapper\">\n\n    <!--int insertUser();-->\n    <insert id=\"insertUser\">\n        insert into t_user values (null, 'admin', '123456', 23, '\u7537', '12345@qq.com')\n    <\/insert>\n\n    <!--int updateUser();-->\n    <update id=\"updateUser\">\n        update t_user set username = '\u5f20\u4e09' where id = 5\n    <\/update>\n\n    <!--int deleteUser();-->\n    <delete id=\"deleteUser\">\n        delete from t_user where id = 7\n    <\/delete>\n\n    <!--User getUserById();-->\n    <!--\n        \u67e5\u8be2\u529f\u80fd\u7684\u6807\u7b7e\u5fc5\u987b\u8bbe\u7f6eresultType\u6216resultMap\n        resultType\uff1a\u8bbe\u7f6e\u9ed8\u8ba4\u7684\u6620\u5c04\u5173\u7cfb\n        resultMap\uff1a\u8bbe\u7f6e\u81ea\u5b9a\u4e49\u7684\u6620\u5c04\u5173\u7cfb\n    -->\n    <select id=\"getUserById\" resultType=\"top.qaqaq.mybatis.pojo.User\">\n        select * from t_user where id = 3\n    <\/select>\n\n    <!--List<User> getAllUser();-->\n    <select id=\"getAllUser\" resultType=\"top.qaqaq.mybatis.pojo.User\">\n        select * from t_user\n    <\/select>\n\n<\/mapper>\n\n<\/code><\/pre>\n\n\n\n
mapper<\/p>\n\n\n\n
UserMapper .java<\/h3>\n\n\n\n
package top.qaqaq.mybatis.mapper;\n\nimport top.qaqaq.mybatis.pojo.User;\n\nimport java.util.List;\n\n\/**\n * @author RichieZhang\n * @create 2023-01-01 15:40\n *\/\npublic interface UserMapper {\n\n    \/**\n     * MyBatis\u9762\u5411\u63a5\u53e3\u7f16\u7a0b\u7684\u4e24\u4e2a\u4e00\u81f4\uff1a\n     * 1\u3001\u6620\u5c04\u6587\u4ef6\u7684namespace\u8981\u548cmapper\u63a5\u53e3\u7684\u5168\u7c7b\u540d\u4fdd\u6301\u4e00\u81f4\n     * 2\u3001\u6620\u5c04\u6587\u4ef6\u4e2dSQL\u8bed\u53e5\u7684id\u8981\u548cmapper\u63a5\u53e3\u4e2d\u7684\u65b9\u6cd5\u4e00\u81f4\n     *\n     * \u8868--\u5b9e\u4f53\u7c7b--mapper\u63a5\u53e3--\u6620\u5c04\u6587\u4ef6\n     *\/\n\n    \/**\n     * \u6dfb\u52a0\u7528\u6237\u4fe1\u606f\n     *\/\n    int insertUser();\n\n    \/**\n     * \u4fee\u6539\u7528\u6237\u4fe1\u606f\n     *\/\n    int updateUser();\n\n    \/**\n     * \u5220\u9664\u7528\u6237\u4fe1\u606f\n     *\/\n    int deleteUser();\n\n    \/**\n     * \u6839\u636eid\u67e5\u8be2\u7528\u6237\u4fe1\u606f\n     *\/\n    User getUserById();\n\n    \/**\n     * \u67e5\u8be2\u6240\u6709\u7684\u7528\u6237\u4fe1\u606f\n     *\/\n    List<User> getAllUser();\n\n}\n\n\n<\/code><\/pre>\n\n\n\n
pojo<\/p>\n\n\n\n
User .java<\/p>\n\n\n\n
package top.qaqaq.mybatis.pojo;\n\n\/**\n * @author RichieZhang\n * @create 2023-01-01 15:37\n *\/\npublic class User {\n\n    private Integer id;\n    private String username;\n    private String password;\n    private Integer age;\n    private String sex;\n    private String email;\n\n    public User() {\n    }\n\n    public User(Integer id, String username, String password, Integer age, String sex, String email) {\n        this.id = id;\n        this.username = username;\n        this.password = password;\n        this.age = age;\n        this.sex = sex;\n        this.email = email;\n    }\n\n    public Integer getId() {\n        return id;\n    }\n\n    public void setId(Integer id) {\n        this.id = id;\n    }\n\n    public String getUsername() {\n        return username;\n    }\n\n    public void setUsername(String username) {\n        this.username = username;\n    }\n\n    public String getPassword() {\n        return password;\n    }\n\n    public void setPassword(String password) {\n        this.password = password;\n    }\n\n    public Integer getAge() {\n        return age;\n    }\n\n    public void setAge(Integer age) {\n        this.age = age;\n    }\n\n    public String getSex() {\n        return sex;\n    }\n\n    public void setSex(String sex) {\n        this.sex = sex;\n    }\n\n    public String getEmail() {\n        return email;\n    }\n\n    public void setEmail(String email) {\n        this.email = email;\n    }\n\n    @Override\n    public String toString() {\n        return \"User{\" +\n                \"id=\" + id +\n                \", username='\" + username + '\\'' +\n                \", password='\" + password + '\\'' +\n                \", age=\" + age +\n                \", sex='\" + sex + '\\'' +\n                \", email='\" + email + '\\'' +\n                '}';\n    }\n}\n<\/code><\/pre>\n\n\n\n
test<\/p>\n\n\n\n
MyBatisTest .java<\/h3>\n\n\n\n
package top.qaqaq.mybatis.test;\n\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.Test;\nimport top.qaqaq.mybatis.mapper.UserMapper;\nimport top.qaqaq.mybatis.pojo.User;\n\nimport java.io.IOException;\nimport java.io.InputStream;\nimport java.util.List;\n\n\/**\n * @author RichieZhang\n * @create 2023-01-01 15:57\n *\/\npublic class MyBatisTest {\n\n    \/**\n     * SqlSession\u9ed8\u8ba4\u4e0d\u81ea\u52a8\u63d0\u4ea4\u4e8b\u52a1\uff0c\u82e5\u9700\u8981\u81ea\u52a8\u63d0\u4ea4\u4e8b\u52a1\n     * \u53ef\u4ee5\u4f7f\u7528SqlSessionFactory.openSession(true);\n     * @throws IOException\n     *\/\n\n    @Test\n    public void testMyBatis() throws IOException {\n        \/\/\u52a0\u8f7d\u6838\u5fc3\u914d\u7f6e\u6587\u4ef6\n        InputStream is = Resources.getResourceAsStream(\"mybatis-config.xml\");\n        \/\/\u83b7\u53d6SqlSessionFactoryBuilder\n        SqlSessionFactoryBuilder sqlSessionFactoryBuilder = new SqlSessionFactoryBuilder();\n        \/\/\u83b7\u53d6SqlSessionFactory\n        SqlSessionFactory sqlSessionFactory = sqlSessionFactoryBuilder.build(is);\n        \/\/\u83b7\u53d6SqlSession\n        SqlSession sqlSession = sqlSessionFactory.openSession(true);\n        \/\/\u83b7\u53d6mapper\u63a5\u53e3\u5bf9\u8c61\n        UserMapper mapper = sqlSession.getMapper(UserMapper.class);\n        \/\/\u6d4b\u8bd5\u529f\u80fd\n        int result = mapper.insertUser();\n        \/\/\u63d0\u4ea4\u4e8b\u52a1\n        \/\/sqlSession.commit();\n        System.out.println(\"result: \" + result);\n    }\n\n    @Test\n    public void testCRUD() throws IOException {\n        InputStream is = Resources.getResourceAsStream(\"mybatis-config.xml\");\n\n        SqlSessionFactory sqlSessionFactory = new SqlSessionFactoryBuilder().build(is);\n\n        SqlSession sqlSession = sqlSessionFactory.openSession(true);\n\n        UserMapper mapper = sqlSession.getMapper(UserMapper.class);\n\n        \/\/mapper.updateUser();\n\n        \/\/mapper.deleteUser();\n\n        \/\/User user = mapper.getUserById();\n        \/\/System.out.println(user);\n\n        List<User> list = mapper.getAllUser();\n        list.forEach(user -> System.out.println(user));\n    }\n}\n<\/code><\/pre>\n","protected":false},"excerpt":{"rendered":"
pom.xml resources mybatis-config.xml log4j.xml resource […]<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[108],"tags":[111],"class_list":["post-3066","post","type-post","status-publish","format-standard","hentry","category-mybatis-code","tag-mybatis"],"_links":{"self":[{"href":"https:\/\/qaqaq.top\/index.php?rest_route=\/wp\/v2\/posts\/3066"}],"collection":[{"href":"https:\/\/qaqaq.top\/index.php?rest_route=\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/qaqaq.top\/index.php?rest_route=\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/qaqaq.top\/index.php?rest_route=\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/qaqaq.top\/index.php?rest_route=%2Fwp%2Fv2%2Fcomments&post=3066"}],"version-history":[{"count":6,"href":"https:\/\/qaqaq.top\/index.php?rest_route=\/wp\/v2\/posts\/3066\/revisions"}],"predecessor-version":[{"id":3126,"href":"https:\/\/qaqaq.top\/index.php?rest_route=\/wp\/v2\/posts\/3066\/revisions\/3126"}],"wp:attachment":[{"href":"https:\/\/qaqaq.top\/index.php?rest_route=%2Fwp%2Fv2%2Fmedia&parent=3066"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/qaqaq.top\/index.php?rest_route=%2Fwp%2Fv2%2Fcategories&post=3066"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/qaqaq.top\/index.php?rest_route=%2Fwp%2Fv2%2Ftags&post=3066"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}