Spark 2.43读取.json文件入库到MySQL 8

1. 如果没有安装包,可以用我的这个

   百度网盘链接 点击进入 提取码: eku1

2. 解压之后

   

    

3. 准备开始配置环境变量

   

    

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8. 如果运行时候报错参考 (java.io.IOException: Could not locate executable null\bin\winutils.exe in the Hadoop binaries.) 点击进入

    

9. 先看运行项目的结构

   

    

10. pom.xml
    

    
    
             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">
        4.0.0
    
        spark
        spark-test
        1.0.0-SNAPSHOT
    
        
            
            
                org.apache.spark
                spark-core_2.12
                2.4.3
            
            
            
                org.apache.spark
                spark-sql_2.12
                2.4.3
            
            
            
                mysql
                mysql-connector-java
                8.0.17
            
        
    

    pom.xml

     

11. TestSpark.java
    

    package panfeng;
    
    import org.apache.spark.sql.Dataset;
    import org.apache.spark.sql.Row;
    import org.apache.spark.sql.SparkSession;
    
    import java.util.Properties;
    
    public class TestSpark
    {
    
        /*
    
        {"name":"大牛","age":"12","address":"吉林省长春市二道区临河街万兴小区4栋2门303","phone":"18935642561"}
        {"name":"二蛋","age":"26","address":"河南省郑州市金水区名字二蛋403","phone":"19658758562"}
        {"name":"三驴","age":"53","address":"安徽省阜阳市太和县陶楼村605","phone":"13245756523"}
        {"name":"四毛","age":"17","address":"天津空间室内发你手机8806","phone":"17546231544"}
        {"name":"五虎","age":"98","address":"谁都不会做哪些技能聚划算505","phone":"16523546825"}
    
        文件位置 D:\Everything\IDEA\Project\spark\tools\JSON_TEST.json
    */
    
        public static void main(String[] args)
        {
            SparkSession sparkSession = SparkSession.builder().master("local").appName("user").getOrCreate();
    
            //Dataset row_dataset = sparkSession.read().json("D:\\Everything\\IDEA\\Project\\spark\\tools\\JSON_TEST.json");//绝对路径
            //Dataset row_dataset = sparkSession.read().json("spark-test/src/main/resources/JSON_TEST.json");//相对路径
            Dataset row_dataset = sparkSession.read().json("*/src/main/resources/json/JSON_TEST.json");//*相对路径
    
            Properties properties = new Properties();
            properties.put("user", "root");
            properties.put("password", "123456");
            // *驱动不指定,系统会自动识别url
            //properties.put("driver","com.mysql.jdbc.Driver");//mysql5
            //properties.put("driver","com.mysql.cj.jdbc.Driver");//mysql8
    
    
            // *如果是本地,localhost:3306可以省略
            //row_dataset.write().mode("append").jdbc("jdbc:mysql://localhost:3306/spark_test?serverTimezone=UTC", "t_user", properties);
            // 1,无论怎样都添加
            //row_dataset.write().mode("append").jdbc("jdbc:mysql:///spark_test?serverTimezone=UTC", "t_user", properties);
            // 2,如果有重写,会覆盖以前的内容,如果没有就添加
            row_dataset.write().mode("overwrite").jdbc("jdbc:mysql:///spark_test?serverTimezone=UTC", "t_user", properties);
            sparkSession.stop();
    
            System.out.println("Complete...");
        }
    }

    TestSpark.java

     

12. JSON_TEST.json
    

    {"name":"大牛","age":"12","address":"吉林省长春市二道区临河街万兴小区4栋2门303","phone":"18935642561"}
    {"name":"二蛋","age":"26","address":"河南省郑州市金水区名字二蛋403","phone":"19658758562"}
    {"name":"三驴","age":"53","address":"安徽省阜阳市太和县陶楼村605","phone":"13245756523"}
    {"name":"四毛","age":"17","address":"天津空间室内发你手机8806","phone":"17546231544"}
    {"name":"五虎","age":"98","address":"谁都不会做哪些技能聚划算505","phone":"16523546825"}

    JSON_TEST.json