林欢欢作业提交

林欢欢_Mybatis2/pom.xml

+<?xml version="1.0" encoding="UTF-8"?>
+<?xml version="1.0" encoding="UTF-8"?>
+<project xmlns="http://maven.apache.org/POM/4.0.0"
+         xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
+         xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
+    <modelVersion>4.0.0</modelVersion>
+
+    <groupId>com.cesgroup</groupId>
+    <artifactId>林欢欢_Mybatis2</artifactId>
+    <version>1.0-SNAPSHOT</version>
+
+    <dependencies>
+        <dependency>
+            <groupId>mysql</groupId>
+            <artifactId>mysql-connector-java</artifactId>
+            <version>5.1.32</version>
+        </dependency>
+        <!--mybatis-->
+        <dependency>
+            <groupId>org.mybatis</groupId>
+            <artifactId>mybatis</artifactId>
+            <version>3.4.6</version>
+        </dependency>
+        <!--日志-->
+        <dependency>
+            <groupId>org.slf4j</groupId>
+            <artifactId>slf4j-log4j12</artifactId>
+            <version>1.7.25</version>
+        </dependency>
+        <!--junit-->
+        <dependency>
+            <groupId>junit</groupId>
+            <artifactId>junit</artifactId>
+            <version>4.12</version>
+        </dependency>
+    </dependencies>
+
+
+    <build>
+        <plugins>
+            <!--用来设置jdk版本的-->
+            <plugin>
+                <groupId>org.apache.maven.plugins</groupId>
+                <artifactId>maven-compiler-plugin</artifactId>
+                <version>3.7.0</version>
+                <configuration>
+                    <source>1.8</source>
+                    <target>1.8</target>
+                </configuration>
+            </plugin>
+        </plugins>
+        <resources>
+            <resource>
+                <directory>src/main/resource</directory>
+                <includes>
+                    <include>*.*</include>
+                </includes>
+            </resource>
+        </resources>
+    </build>
+
+
+
+
+</project>
\ No newline at end of file

林欢欢_Mybatis2/src/main/java/com/cesgroup/Interceptor/MybatisLogInterceptor.java

+package com.cesgroup.Interceptor;
+package com.cesgroup.Interceptor;
+
+import com.cesgroup.util.ReflectHelper;
+import org.apache.ibatis.executor.statement.RoutingStatementHandler;
+import org.apache.ibatis.executor.statement.StatementHandler;
+import org.apache.ibatis.mapping.BoundSql;
+import org.apache.ibatis.mapping.ParameterMapping;
+import org.apache.ibatis.mapping.ParameterMode;
+import org.apache.ibatis.plugin.Interceptor;
+import org.apache.ibatis.plugin.Intercepts;
+import org.apache.ibatis.plugin.Invocation;
+import org.apache.ibatis.plugin.Signature;
+import org.apache.ibatis.type.TypeHandlerRegistry;
+import sun.plugin2.main.server.ResultHandler;
+
+import javax.security.auth.login.Configuration;
+import java.sql.Statement;
+import java.util.ArrayList;
+import java.util.List;
+import java.util.Properties;
+import java.util.logging.Logger;
+
+@Intercepts({@Signature(type = StatementHandler.class,method = "query",args = {Statement.class, ResultHandler.class})})
+public class MybatisLogInterceptor implements Interceptor{
+
+    @Override
+    public Object intercept(Invocation invocation) throws Throwable {
+        Logger logger = null;
+        String sql = null;
+       if (invocation.getTarget() instanceof RoutingStatementHandler) {
+           RoutingStatementHandler statementHandler = (RoutingStatementHandler) invocation.getTarget();
+           StatementHandler delegate = (StatementHandler) ReflectHelper.getValueByFieldName(statementHandler, "delegate");
+           BoundSql boundSql = delegate.getBoundSql();
+           Object parameterObject = boundSql.getParameterObject();
+           List<Object> params = new ArrayList<>();
+           TypeHandlerRegistry typeHandlerRegistry = (TypeHandlerRegistry) ReflectHelper.getValueByFieldName(delegate, "typeHandlerRegistry");
+           Configuration configuration = ReflectHelper.getFieldByFieldName(delegate, "configuration");
+           List<ParameterMapping> parameterMappings = boundSql.getParameterMappings();
+           if (parameterMappings != null) {
+               for (int i = 0; i < parameterMappings.size(); i++) {
+                   ParameterMapping parameterMapping = parameterMappings.get(i);
+                   if (parameterMapping.getMode() != ParameterMode.OUT) {
+                       Object value = null;
+                       String propertyName = parameterMapping.getProperty();
+                       if (boundSql.hasAdditionalParameter(propertyName)) {
+                           value = boundSql.getAdditionalParameter(propertyName);
+                       } else if (parameterObject == null) {
+                           value = null;
+                       } else if (typeHandlerRegistry.hasTypeHandler(parameterObject.getClass())) {
+                           value = parameterObject;
+                       }
+                       params.add(value);
+                   }
+               }
+           }
+            sql = boundSql.getSql();
+           for (Object param : params) {
+               sql = sql.replaceFirst("[?]]", param + "");
+           }
+       }
+           return sql;
+    }
+
+    @Override
+    public Object plugin(Object o) {
+        return null;
+    }
+
+    @Override
+    public void setProperties(Properties properties) {
+
+    }
+}

林欢欢_Mybatis2/src/main/java/com/cesgroup/pojo/User.java

+package com.cesgroup.pojo;
+package com.cesgroup.pojo;
+
+import java.io.Serializable;
+
+public class User implements Serializable{
+
+    private Integer id;
+    private String name;
+
+    public Integer getId() {
+        return id;
+    }
+
+    public void setId(Integer id) {
+        this.id = id;
+    }
+
+    public String getName() {
+        return name;
+    }
+
+    public void setName(String name) {
+        this.name = name;
+    }
+}

林欢欢_Mybatis2/src/main/java/com/cesgroup/util/ReflectHelper.java

+package com.cesgroup.util;
+package com.cesgroup.util;
+
+import javax.security.auth.login.Configuration;
+import java.lang.reflect.Field;
+
+public class ReflectHelper {
+
+    public static Configuration getFieldByFieldName(Object obj, String fieldName) {
+        for (Class<?> superClass = obj.getClass(); superClass != Object.class; superClass = superClass
+                .getSuperclass()) {
+            try {
+                return superClass.getDeclaredField(fieldName);
+            } catch (NoSuchFieldException e) {
+            }
+        }
+        return null;
+    }
+
+    public static Object getValueByFieldName(Object obj, String fieldName)
+            throws SecurityException, NoSuchFieldException,
+            IllegalArgumentException, IllegalAccessException {
+        Field field = getFieldByFieldName(obj, fieldName);
+        Object value = null;
+        if(field!=null){
+            if (field.isAccessible()) {
+                value = field.get(obj);
+            } else {
+                field.setAccessible(true);
+                value = field.get(obj);
+                field.setAccessible(false);
+            }
+        }
+        return value;
+    }
+}

林欢欢_Mybatis2/src/main/resources/UserMapper.xml

+<?xml version="1.0" encoding="UTF-8"?>
+<?xml version="1.0" encoding="UTF-8"?>
+<!DOCTYPE mapper PUBLIC "-//mybatis.org//DTD Mapper 3.0//EN"
+        "http://mybatis.org/dtd/mybatis-3-mapper.dtd">
+<mapper namespace="UserMapper">
+    <select id="selectUser" resultType="com.cesgroup.pojo.User">
+        select * from mybatis where id = #{id}
+    </select>
+</mapper>

林欢欢_Mybatis2/src/main/resources/jdbc.properties

+jdbc.driverClassName=com.mysql.jdbc.Driver
+jdbc.driverClassName=com.mysql.jdbc.Driver
+jdbc.url=jdbc:mysql://127.0.0.1:3306/mybatis2?useUnicode=true&characterEncoding=utf8&autoReconnect=true&allowMultiQueries=true
+jdbc.username=root
+jdbc.password=root
\ No newline at end of file

林欢欢_Mybatis2/src/main/resources/log4j.properties

+log4j.appender.stdout=org.apache.log4j.ConsoleAppender
+log4j.appender.stdout=org.apache.log4j.ConsoleAppender
+log4j.appender.stdout.Target=System.out
+log4j.appender.stdout.layout=org.apache.log4j.PatternLayout
+log4j.appender.stdout.layout.ConversionPattern=%-d{yyyy-MM-dd HH:mm:ss,SSS} [%t] [%c]-[%p] %m%n
+log4j.appender.file=org.apache.log4j.FileAppender
+#log4j.appender.file.File=f:/mylog.log
+log4j.appender.file.layout=org.apache.log4j.PatternLayout
+log4j.appender.file.layout.ConversionPattern=%-d{yyyy-MM-dd HH:mm:ss,SSS} [%t] [%c]-[%p] %m%n
+log4j.rootLogger=debug, stdout

林欢欢_Mybatis2/src/main/resources/mybatis-config.xml

+<?xml version="1.0" encoding="UTF-8" ?>
+<?xml version="1.0" encoding="UTF-8" ?>
+<!DOCTYPE configuration
+        PUBLIC "-//mybatis.org//DTD Config 3.0//EN"
+        "http://mybatis.org/dtd/mybatis-3-config.dtd">
+<configuration>
+    <properties resource="jdbc.properties"/>
+
+    <typeAliases>
+        <!-- 设置别名 -->
+        <package name="cn.cesgroup.mybatis.pojo"/>
+    </typeAliases>
+
+    <!--日志插件-->
+    <plugins>
+        <plugin interceptor="com.cesgroup.Interceptor.MybatisLogInterceptor"/>
+    </plugins>
+
+    <!-- 配置数据库连接的环境 -->
+    <environments default="development">
+        <environment id="development">
+            <transactionManager type="JDBC"/>
+            <dataSource type="POOLED">
+                <property name="driver" value="${jdbc.driver}"/>
+                <property name="url" value="${jdbc.url}"/>
+                <property name="username" value="${jdbc.username}"/>
+                <property name="password" value="${jdbc.password}"/>
+            </dataSource>
+        </environment>
+    </environments>
+
+    <mappers>
+        <package name="com.cesgroup.mybatis.mapper"/>
+    </mappers>
+</configuration>

林欢欢_Mybatis2/src/main/resources/mybatis.sql

+SET NAMES utf8mb4;
+SET NAMES utf8mb4;
+SET FOREIGN_KEY_CHECKS = 0;
+
+-- ----------------------------
+-- Table structure for mybatis
+-- ----------------------------
+DROP TABLE IF EXISTS `mybatis`;
+CREATE TABLE `mybatis2`  (
+  `id` int(32) NOT NULL,
+  `name` varchar(255) CHARACTER SET utf8mb4 COLLATE utf8mb4_0900_ai_ci NULL DEFAULT NULL,
+  PRIMARY KEY (`id`) USING BTREE
+) ENGINE = InnoDB CHARACTER SET = utf8mb4 COLLATE = utf8mb4_0900_ai_ci ROW_FORMAT = Dynamic;
+
+SET FOREIGN_KEY_CHECKS = 1;

林欢欢_Mybatis2/src/test/java/com/cesgroup/Interceptor/MybatisLogInterceptorTest.java

+package com.cesgroup.Interceptor;
+package com.cesgroup.Interceptor;
+
+import com.cesgroup.pojo.User;
+import org.apache.ibatis.io.Resources;
+import org.apache.ibatis.session.SqlSession;
+import org.apache.ibatis.session.SqlSessionFactory;
+import org.apache.ibatis.session.SqlSessionFactoryBuilder;
+import org.junit.Before;
+import org.junit.Test;
+
+import java.io.InputStream;
+
+public class MybatisLogInterceptorTest {
+
+    private SqlSession sqlSession=null;
+    private SqlSessionFactory sqlSessionFactory;
+
+    @Before
+    public void configMybatis() {
+        String resource = "mybatis-config.xml";
+        InputStream inputStream;
+        try {
+            inputStream = Resources.getResourceAsStream(resource);
+            sqlSessionFactory = new SqlSessionFactoryBuilder().build(inputStream);
+            sqlSession= sqlSessionFactory.openSession(false);
+        } catch (Exception e) {
+            e.printStackTrace();
+        } finally {
+            if(sqlSession!=null) {
+                sqlSession.close();
+            }
+        }
+    }
+    @Test
+    public void testSelectUser() {
+        User user = sqlSession.selectOne("UserMapper.selectUser", 2);
+        System.out.println(user);
+        sqlSession.close();
+    }
+}
\ No newline at end of file

林欢欢_Mybatis2/林欢欢_Mybatis2.iml

+<?xml version="1.0" encoding="UTF-8"?>
+<?xml version="1.0" encoding="UTF-8"?>
+<module org.jetbrains.idea.maven.project.MavenProjectsManager.isMavenModule="true" type="JAVA_MODULE" version="4">
+  <component name="NewModuleRootManager" LANGUAGE_LEVEL="JDK_1_8">
+    <output url="file://$MODULE_DIR$/target/classes" />
+    <output-test url="file://$MODULE_DIR$/target/test-classes" />
+    <content url="file://$MODULE_DIR$">
+      <sourceFolder url="file://$MODULE_DIR$/src/main/java" isTestSource="false" />
+      <sourceFolder url="file://$MODULE_DIR$/src/main/resources" type="java-resource" />
+      <sourceFolder url="file://$MODULE_DIR$/src/test/java" isTestSource="true" />
+      <excludeFolder url="file://$MODULE_DIR$/target" />
+    </content>
+    <orderEntry type="inheritedJdk" />
+    <orderEntry type="sourceFolder" forTests="false" />
+    <orderEntry type="library" name="Maven: mysql:mysql-connector-java:5.1.32" level="project" />
+    <orderEntry type="library" name="Maven: org.mybatis:mybatis:3.4.6" level="project" />
+    <orderEntry type="library" name="Maven: org.slf4j:slf4j-log4j12:1.7.25" level="project" />
+    <orderEntry type="library" name="Maven: org.slf4j:slf4j-api:1.7.25" level="project" />
+    <orderEntry type="library" name="Maven: log4j:log4j:1.2.17" level="project" />
+    <orderEntry type="library" name="Maven: junit:junit:4.12" level="project" />
+    <orderEntry type="library" name="Maven: org.hamcrest:hamcrest-core:1.3" level="project" />
+  </component>
+</module>
\ No newline at end of file