package com.icfcc.grjmail.util.tool;
import java.util.ArrayList;
import java.util.HashMap;
import java.util.List;
import java.util.Map;
import com.icfcc.grjmail.dto.QuantityDto;
public class CompareDataTool {
public static void main(String[] args) {
List<QuantityDto> list = new ArrayList<QuantityDto>();
List<QuantityDto> list2 = new ArrayList<QuantityDto>();
// 生成excel
QuantityDto dto = new QuantityDto();
dto.setOrgCode("111");
dto.setAccount("111");
dto.setStartDate("111");
dto.setType("111");
dto.setBalance("111");
dto.setName("111");
dto.setCertType("111");
dto.setCertNo("111");
QuantityDto dto2 = new QuantityDto();
dto2.setOrgCode("dto2");
dto2.setAccount("dto2");
dto2.setStartDate("dto2");
dto2.setType("dto2");
dto2.setBalance("dto2");
dto2.setName("dto2");
dto2.setCertType("dto2");
dto2.setCertNo("dto2");
list.add(dto);
list.add(dto2);
QuantityDto dto3 = new QuantityDto();
dto3.setOrgCode("dto2");
dto3.setAccount("dto2");
dto3.setStartDate("dto2");
dto3.setType("dto2");
dto3.setBalance("dto2");
dto3.setName("dto2");
dto3.setCertType("dto2");
dto3.setCertNo("dto2");
list2.add(dto3);
List<QuantityDto> samelist = getSameList(list, list2);
List<QuantityDto> differlist = getDiffList(list, list2);
for (int i = 0; i < samelist.size(); i++) {
System.out.println("same=="+samelist.get(i).getName());
}
for (int i = 0; i < differlist.size(); i++) {
System.out.println("differ=="+differlist.get(i).getName());
}
}
/**
* 获取两个List的不同元素
* @param list1
* @param list2
* @return
*/
public static List<QuantityDto> getDiffList(List<QuantityDto> list1,
List<QuantityDto> list2) {
List<QuantityDto> differList = new ArrayList<QuantityDto>();
List<QuantityDto> maxList = list1;
List<QuantityDto> minList = list2;
if (list2.size() > list1.size()) {
maxList = list2;
minList = list1;
}
// 用一个map存放lsit的所有元素，其中的key为lsit1的各个元素，value为该元素出现的次数,接着把list2的所有元素也放到map里，如果已经存在则value加1，
Map<QuantityDto, Integer> map = new HashMap<QuantityDto, Integer>(maxList.size());
for (QuantityDto string : maxList) {
map.put(string, 1);
}
for (QuantityDto string : minList) {
if (map.get(string) != null) {
map.put(string, 2);
continue;
}
differList.add(string);
}
for (Map.Entry<QuantityDto, Integer> entry : map.entrySet()) {
// 只获取value大于1的元素
if (entry.getValue() == 1) {
differList.add(entry.getKey());
}
}
return differList;
}
/**
* 获取两个List的相同元素
* @param list1
* @param list2
* @return
*/
public static List<QuantityDto> getSameList(List<QuantityDto> list1,
List<QuantityDto> list2) {
List<QuantityDto> sameList = new ArrayList<QuantityDto>();
List<QuantityDto> maxList = list1;
List<QuantityDto> minList = list2;
if (list2.size() > list1.size()) {
maxList = list2;
minList = list1;
}
// 用一个map存放lsit的所有元素，其中的key为lsit1的各个元素，value为该元素出现的次数,接着把list2的所有元素也放到map里，如果已经存在则value加1，
Map<QuantityDto, Integer> map = new HashMap<QuantityDto, Integer>(maxList.size());
for (QuantityDto string : maxList) {
map.put(string, 1);
}
for (QuantityDto string : minList) {
if (map.get(string) != null) {
map.put(string, 2);
continue;
}
}
for (Map.Entry<QuantityDto, Integer> entry : map.entrySet()) {
// 只获取value大于1的元素
if (entry.getValue() > 1) {
sameList.add(entry.getKey());
}
}
return sameList;
}
}
package com.icfcc.grjmail.dto; public class QuantityDto { private String orgCode;//金融机构代码 private String account;//业务号 private String startDate;//开户日期 private String type;//业务种类细分 private String balance;//余额 private String name;//姓名 private String certType;//证件类型 private String certNo;//证件号码 public String getOrgCode() { return orgCode; } public void setOrgCode(String orgCode) { this.orgCode = orgCode; } public String getAccount() { return account; } public void setAccount(String account) { this.account = account; } public String getStartDate() { return startDate; } public void setStartDate(String startDate) { this.startDate = startDate; } public String getType() { return type; } public void setType(String type) { this.type = type; } public String getBalance() { return balance; } public void setBalance(String balance) { this.balance = balance; } public String getName() { return name; } public void setName(String name) { this.name = name; } public String getCertNo() { return certNo; } public void setCertNo(String certNo) { this.certNo = certNo; } public String getCertType() { return certType; } public void setCertType(String certType) { this.certType = certType; } @Override public int hashCode() { final int prime = 31; int result = 1; result = prime * result + ((account == null) ? 0 : account.hashCode()); result = prime * result + ((balance == null) ? 0 : balance.hashCode()); result = prime * result + ((certNo == null) ? 0 : certNo.hashCode()); result = prime * result + ((certType == null) ? 0 : certType.hashCode()); result = prime * result + ((name == null) ? 0 : name.hashCode()); result = prime * result + ((orgCode == null) ? 0 : orgCode.hashCode()); result = prime * result + ((startDate == null) ? 0 : startDate.hashCode()); result = prime * result + ((type == null) ? 0 : type.hashCode()); return result; } @Override public boolean equals(Object obj) { if (this == obj) return true; if (obj == null) return false; if (getClass() != obj.getClass()) return false; QuantityDto other = (QuantityDto) obj; if (account == null) { if (other.account != null) return false; } else if (!account.equals(other.account)) return false; if (balance == null) { if (other.balance != null) return false; } else if (!balance.equals(other.balance)) return false; if (certNo == null) { if (other.certNo != null) return false; } else if (!certNo.equals(other.certNo)) return false; if (certType == null) { if (other.certType != null) return false; } else if (!certType.equals(other.certType)) return false; if (name == null) { if (other.name != null) return false; } else if (!name.equals(other.name)) return false; if (orgCode == null) { if (other.orgCode != null) return false; } else if (!orgCode.equals(other.orgCode)) return false; if (startDate == null) { if (other.startDate != null) return false; } else if (!startDate.equals(other.startDate)) return false; if (type == null) { if (other.type != null) return false; } else if (!type.equals(other.type)) return false; return true; } }
