{"id":3087,"date":"2023-01-01T19:59:11","date_gmt":"2023-01-01T11:59:11","guid":{"rendered":"https:\/\/qaqaq.top\/?p=3087"},"modified":"2023-01-03T20:13:45","modified_gmt":"2023-01-03T12:13:45","slug":"mybatis%e8%8e%b7%e5%8f%96%e5%8f%82%e6%95%b0%e5%80%bc%e7%9a%84%e4%b8%a4%e7%a7%8d%e6%96%b9%e5%bc%8f%e5%89%8d%e7%bd%ae%e4%bb%a3%e7%a0%81","status":"publish","type":"post","link":"https:\/\/qaqaq.top\/?p=3087","title":{"rendered":"MyBatis\u83b7\u53d6\u53c2\u6570\u503c\u7684\u4e24\u79cd\u65b9\u5f0f\u524d\u7f6e\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_demo2<\/artifactId>\n  <version>1.0-SNAPSHOT<\/version>\n  <packaging>jar<\/packaging>\n\n  <name>MyBatis_demo2<\/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\n    <properties resource=\"jdbc.properties\" \/>\n\n    <typeAliases>\n        <package name=\"top.qaqaq.mybatis.pojo\"\/>\n    <\/typeAliases>\n\n    <environments default=\"development\">\n        <environment id=\"development\">\n            <transactionManager type=\"JDBC\"\/>\n            <dataSource type=\"POOLED\">\n                <property name=\"driver\" value=\"${jdbc.driver}\"\/>\n                <property name=\"url\" value=\"${jdbc.url}\"\/>\n                <property name=\"username\" value=\"${jdbc.username}\"\/>\n                <property name=\"password\" value=\"${jdbc.password}\"\/>\n            <\/dataSource>\n        <\/environment>\n    <\/environments>\n\n    <mappers>\n        <package name=\"top.qaqaq.mybatis.mapper\"\/>\n    <\/mappers>\n<\/configuration><\/code><\/pre>\n\n\n\n
jdbc.properties<\/p>\n\n\n\n
jdbc.driver=com.mysql.cj.jdbc.Driver\njdbc.url=jdbc:mysql:\/\/localhost:3306\/mybatis\njdbc.username=root\njdbc.password=123456\n<\/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\/mapper<\/p>\n\n\n\n
ParameterMapper.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.ParameterMapper\">\n    \n    <!--List<User> getAllUser();-->\n    <select id=\"getAllUser\" resultType=\"User\">\n        select * from t_user\n    <\/select>\n\n<\/mapper><\/code><\/pre>\n\n\n\n
mapper<\/p>\n\n\n\n
ParameterMapper .java<\/h3>\n\n\n\n
package top.qaqaq.mybatis.mapper;\n\nimport top.qaqaq.mybatis.pojo.User;\n\nimport java.util.List;\n\npublic interface ParameterMapper {\n\n    \/**\n     * \u67e5\u8be2\u6240\u6709\u7684\u5458\u5de5\u4fe1\u606f\n     *\/\n    List<User> getAllUser();\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
utils<\/p>\n\n\n\n
SqlSessionUtils .java<\/p>\n\n\n\n
package top.qaqaq.mybatis.utils;\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;\n\nimport java.io.IOException;\nimport java.io.InputStream;\n\npublic class SqlSessionUtils {\n\n    public static SqlSession getSqlSession() {\n        SqlSession sqlSession = null;\n        try {\n            InputStream is = Resources.getResourceAsStream(\"mybatis-config.xml\");\n            SqlSessionFactory sqlSessionFactory = new SqlSessionFactoryBuilder().build(is);\n            sqlSession = sqlSessionFactory.openSession(true);\n        } catch (IOException e) {\n            throw new RuntimeException(e);\n        }\n        return sqlSession;\n    }\n}\n<\/code><\/pre>\n\n\n\n
test<\/p>\n\n\n\n
ParameterMapperTest .java<\/h3>\n\n\n\n
package top.qaqaq.mybatis.test;\n\nimport org.apache.ibatis.session.SqlSession;\nimport org.junit.Test;\nimport top.qaqaq.mybatis.mapper.ParameterMapper;\nimport top.qaqaq.mybatis.pojo.User;\nimport top.qaqaq.mybatis.utils.SqlSessionUtils;\n\nimport java.util.List;\n\npublic class ParameterMapperTest {\n\n    @Test\n    public void testGetAllUser() {\n        SqlSession sqlSession = SqlSessionUtils.getSqlSession();\n        ParameterMapper mapper = sqlSession.getMapper(ParameterMapper.class);\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 jdbc.properties lo […]<\/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-3087","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\/3087"}],"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=3087"}],"version-history":[{"count":4,"href":"https:\/\/qaqaq.top\/index.php?rest_route=\/wp\/v2\/posts\/3087\/revisions"}],"predecessor-version":[{"id":3124,"href":"https:\/\/qaqaq.top\/index.php?rest_route=\/wp\/v2\/posts\/3087\/revisions\/3124"}],"wp:attachment":[{"href":"https:\/\/qaqaq.top\/index.php?rest_route=%2Fwp%2Fv2%2Fmedia&parent=3087"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/qaqaq.top\/index.php?rest_route=%2Fwp%2Fv2%2Fcategories&post=3087"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/qaqaq.top\/index.php?rest_route=%2Fwp%2Fv2%2Ftags&post=3087"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}