一、爬虫爬取的招聘网站数据
二、在MySQL中创建空表
SET FOREIGN_KEY_CHECKS=0;-- ----------------------------
-- Table structure for jd_jobs
-- ----------------------------
DROP TABLE IF EXISTS `jd_jobs`;
CREATE TABLE `jd_jobs` (`job_name` text,`job_date` text,`minSale` text,`maxSale` text,`job_city` text,`job_area` text,`company_nature` text,`company_size_min` text,`company_size_max` text,`company_Industry` text
) ENGINE=InnoDB DEFAULT CHARSET=utf8mb4;
三、通过Spark导入招聘数据到MySQL中
以下是完整代码：
import java.util.Propertiesimport com.niit.util.{LoggerLevel, SparkUnit}object SparkSQL_MySQL extends LoggerLevel {def main(args: Array[String]): Unit = {/*** 读取数据，写入MySQL** 实现：* 1. 读取文件* 2. 转为table操作对象* 3. 写SQL查询* 4. 保存查询SQL的对象**/val ss = SparkUnit.getLocalSparkSession("OffLine")// 读取两个文件val path = "D:\\temp\\"val jd_jobs = ss.read.option("header", false).option("encoding","gbk").option("delimiter", ",").csv(path + "51_jobs_data.csv").toDF("job_name", "job_date", "minSale","maxSale","job_city","job_area","company_nature","company_size_min","company_size_max","company_Industry")jd_jobs.show()// SQL式编程需要转为table结构jd_jobs.createTempView("jd_jobs")// selectval jobs = ss.sql("""| SELECT job_name, job_date, minSale, maxSale,job_city,job_area,| company_nature,company_size_min,company_size_max,company_Industry| from jd_jobs|""".stripMargin)// JDBCval url = "jdbc:mysql://localhost:3306/bigdata?useUnicode=true&characterEncoding=UTF-8&zeroDateTimeBehavior=convertToNull&serverTimezone=UTC"val tb = "jd_jobs"val properties = new Properties()properties.setProperty("user", "root")properties.setProperty("password", "123456")properties.setProperty("driverClass", "com.mysql.jdbc.Driver")// savejobs.write.mode("overwrite").jdbc(url, tb, properties)// tips ：除了查询SQL返回对象，然后保存对象// 还可以直接create table as select ... 一步到位}}四、导入MySQL
