摘要： public void batchInsertStudent(){ List ls = new ArrayList(); for(int i = 5;i INSERT INTO STUDENT (id,name,sex,tel,address) ... 阅读全文

摘要： private MarketCategoryConversionRateMapper marketCategoryConversionRateMapper;List ids = new ArrayList();Map paramMap = new HashMap();paramMap.put("al... 阅读全文

摘要： package com.asp;import java.util.Arrays;import java.util.Collections;import java.util.Comparator;import java.util.LinkedHashMap;import java.util.Linke... 阅读全文

摘要： 江苏,223江苏,88江苏,1555河南,352河南,352河南,600河北,2000河北,3000江西,82江西,111山东,910山东,910山东,910山西,99山西,111山西,99create table test1(name string,id int) row format del... 阅读全文

摘要： // 创建集合对象 HashMap hm = new HashMap(); // 创建元素 Teacher t1 = new Teacher("小明", 19); Teacher t2 = new Teacher("小刚", 15); ... 阅读全文

摘要： public class Demo { public static class MultestMapper extends Mapper { private Text outkey = new Text(""); private Multipl... 阅读全文

摘要： public class Demo1 { public static class MultestMapper extends Mapper { private Text outkey = new Text(""); private Multip... 阅读全文

摘要： package com.qq;import java.io.DataInput;import java.io.DataOutput;import java.io.IOException;//import java.net.URI;import org.apache.hadoop.conf.Confi... 阅读全文

摘要： package com.qq;import java.io.DataInput;import java.io.DataOutput;import java.io.IOException;import org.apache.hadoop.io.WritableComparable;public cl... 阅读全文

摘要： public class Student implements Comparable { private int name; private int age; public Student() { } public Student(int name, int age) ... 阅读全文