List<CheckDataDO> findList = collectDataChackDAO.findMpiInfoList("20150803", "20160803", null);接收
数据结构
创建了一个对象CheckDataDO 对象里面有 3个 属性
private String name;//姓名
private String phoneNumberSelf;//手机
private String idNo;//身份证
现在要做的是
使用findList 对比。规则：取一条数据和所有的数据进行对比，如果其中CheckDataDO 对象里面有2个属性值相等那么取出来放到一个集合里面。比如姓名相同，手机也相等那么把这条数据取出来
下面试我的代码
List<CheckDataDO> findList = collectDataChackDAO.findMpiInfoList("20150803", "20160803", null);
System.out.println(findList.size());
long start = (new Date()).getTime();
List<CheckDataDO> checklist = new ArrayList<>();
for (int i = 0; i < findList.size(); i++) {
for (int j = 0; j < findList.size(); j++) {
CheckDataDO checkDo = CheckDataDO.check(findList.get(i), findList.get(j));
if (checkDo != null) {
checklist.add(checkDo);
}
}
}
public static CheckDataDO check(CheckDataDO ycheckDataDO, CheckDataDO hcheckDataDO) {
CheckDataDO check = new CheckDataDO();
boolean flag = ycheckDataDO.equals(hcheckDataDO);
if (flag == true) {
check = null;
return check;
} else {
check = ycheckDataDO;
if (returnType == 1) {
check.setDescribe("身份证异常");
} else if (returnType == 2) {
check.setDescribe("姓名异常");
} else {
check.setDescribe("电话号码异常");
}
return check;
}
}
@Override
public boolean equals(Object obj) {
CheckDataDO checkDataDO = (CheckDataDO) obj;
String getFName = checkDataDO.getName();
String getPhone = checkDataDO.getPhoneNumberSelf();
String getIdNo = checkDataDO.getIdNo();
//如果是null或者“”则不需要对比
if(name == null && getFName == null
||phoneNumberSelf == null && getPhone == null
||idNo == null && getIdNo == null
||"".equals(name)&&"".equals(getFName)
||"".equals(phoneNumberSelf)&&"".equals(getPhone)
||"".equals(idNo)&&"".equals(getIdNo)
){
returnType = 0;
return true;
}
//判断是否相等
boolean nameFlag = judgeData(name, getFName);
boolean phoneFlag = judgeData(phoneNumberSelf, getPhone);
boolean idNoFlag = judgeData(idNo, getIdNo);
if (nameFlag == true && phoneFlag == true && idNoFlag == true) {
returnType = 0;
return true;
} else if (nameFlag == true && phoneFlag == true && idNoFlag == false) {
//身份证异常
returnType = 1;
return false;
} else if (nameFlag == false && phoneFlag == true && idNoFlag == true) {
//姓名异常
returnType = 2;
return false;
} else if (nameFlag == true && phoneFlag == false && idNoFlag == true) {
//电话号码异常
returnType = 3;
return false;
} else {
return true;
}
}
我重写了equals方法，现在的问题是我使用了2个循环造成效率非常慢。3W条数据要2分钟，请问谁有思路
