DBOutputFormat把MapReduce结果输出到mysql中

DBOutputFormat把MapReduce结果输出到mysql中
现在有一个需求：就是如何使用DBOutputFormat把MapReduce产生的结果输出到mysql中。

package com;
import java.io.File;
import java.io.IOException;
import java.sql.PreparedStatement;
import java.sql.ResultSet;
import java.sql.SQLException;
import org.apache.commons.lang.StringUtils;
import org.apache.hadoop.conf.Configuration;
import org.apache.hadoop.fs.Path;
import org.apache.hadoop.io.LongWritable;
import org.apache.hadoop.io.Text;
import org.apache.hadoop.mapreduce.Job;
import org.apache.hadoop.mapreduce.Mapper;
import org.apache.hadoop.mapreduce.Reducer;
import org.apache.hadoop.mapreduce.lib.db.DBConfiguration;
import org.apache.hadoop.mapreduce.lib.db.DBOutputFormat;
import org.apache.hadoop.mapreduce.lib.db.DBWritable;
import org.apache.hadoop.mapreduce.lib.input.FileInputFormat;
public class mysqlTestMark_to_win {
    public static class MytableWritable implements DBWritable {  
        String name;  
        int age;  
 
        public MytableWritable() {  
        }  
 
        public MytableWritable(String name, int age) {  
            this.name = name;  
            this.age = age;  
        }  
 
        public void write(PreparedStatement statement) throws SQLException {
            System.out.println("write PreparedStatement");
            statement.setString(1, this.name);  
            statement.setInt(2, this.age);  
        }  

        public void readFields(ResultSet resultSet) throws SQLException {
/*因为不用从数据库中读，所以可以这里屏蔽代码， 因为上面是接口，所以必须实现这个方法*/            
//            System.out.println("readFields ResultSet");
//            this.name = resultSet.getString(1);  
//            this.age = resultSet.getInt(2);  
        }  
        public String toString() {  
            return new String(this.name + " " + this.age);  
        }  
    }     

更多内容请见原文，文章转载自：https://blog.csdn.net/qq_44594249/article/details/97612412