CSI Bug修改记录
需求：
在表A：S2s中有3个字段，cust_id，form_date和isTransmit，在表B：Flag中，有3个字段：cust_id、startDate和endDate，请找出S2s中的某些记录，约束条件如下：
1、该笔记录的cust_id存在于表Flag中，即S2s.cust_id=Flag.cust_id；
2、该笔记录的isTransmit值为N；
3、该笔记录的form_date在表Flag的startDate和endDate之间，即form_date>=startDate且form_date<=endDate;
4、form_date格式为YYYYMMDD，startDate和endDate格式为YYYY-MM-DD；
由于Production环境的资料需要保密，只能提供表A的3个自动和表B的3字段，现在客户已经导出到txt文档，每笔记录包含3个字段，以空格分开。
下面我们分步骤开实现如何测试客户提供的数据：
1、创建2个类，将文本文件中的数据实例化对象；
public class S2s {
private String cust_id;
private String form_date;
private String isTransmit;
/**
* @return the cust_id
*/
public String getCust_id() {
return cust_id;
}
/**
* @param cust_id the cust_id to set
*/
public void setCust_id(String cust_id) {
this.cust_id = cust_id;
}
/**
* @return the form_date
*/
public String getForm_date() {
return form_date;
}
/**
* @param form_date the form_date to set
*/
public void setForm_date(String form_date) {
this.form_date = form_date;
}
/**
* @return the isTransmit
*/
public String getIsTransmit() {
return isTransmit;
}
/**
* @param isTransmit the isTransmit to set
*/
public void setIsTransmit(String isTransmit) {
this.isTransmit = isTransmit;
}
}
public class Flag {
private String customer_id;
private String startDate;
private String endDate;
/**
* @return the customer_id
*/
public String getCustomer_id() {
return customer_id;
}
/**
* @param customer_id the customer_id to set
*/
public void setCustomer_id(String customer_id) {
this.customer_id = customer_id;
}
/**
* @return the startDate
*/
public String getStartDate() {
return startDate;
}
/**
* @param startDate the startDate to set
*/
public void setStartDate(String startDate) {
this.startDate = startDate;
}
/**
* @return the endDate
*/
public String getEndDate() {
return endDate;
}
/**
* @param endDate the endDate to set
*/
public void setEndDate(String endDate) {
this.endDate = endDate;
}
}
2、分行读取文本文件，并将每条记录序列化为对象，存储到List中：
我们先来看看txt文档中的片段：
S223821747 2008-09-05 2008-09-15 A227577478 2008-09-05 2008-09-15 L123462919 2008-09-05 2008-09-15 S124039554 2008-09-05 2008-09-15 F224800911 2008-09-05 2008-09-15 A225667273 2008-09-05 2008-09-15 F223968423 2008-09-05 2008-09-15 Z100098584 2008-09-05 2008-09-30 H122644620 2008-09-05 2008-09-30 U221392263 2008-09-05 2008-09-30 A227669499 2008-09-05 2008-09-30 N224708641 2008-09-05 2008-09-30 B290023255 2008-09-05 2008-09-30 C221114157 2008-09-05 2008-09-30 T220902657 2008-09-05 2008-09-30
从中我们可以看到，3个字段以空格分隔，其中第一个字段和第二个字段中间有多个空格；
FileReader reader = new FileReader(flagFileName);
BufferedReader br = new BufferedReader(reader);
String s1 = null;
while ((s1 = br.readLine()) != null) {
//TODO
｝
3、将得到的字符串分割为字符数组(String[])：
s2 = s1.split(" ");
4、通过打印字符数组可知s2[0]、s2[6]、s2[7]为3个字段的位置，将3个字段的值放入对象并存储到List中：
f = new Flag(); f.setCustomer_id(s2[0]); f.setStartDate(s2[7]); f.setEndDate(s2[8]); flagList.add(f);
该方法的完整代码如下：
/**
* 从Flag 的txt文件中按行读取，将得到的3个字符串分别放入Flag对象中，
* 然后将对于存储在返回List中
* @return
*/
public static List readFlag() {
FileReader reader = null;
List flagList = new ArrayList();
try {
reader = new FileReader(flagFileName);
BufferedReader br = new BufferedReader(reader);
String s1 = null;
String[] s2 = null;
Flag f = null;
int i = 0;
int j = 0;
while ((s1 = br.readLine()) != null) {
s2 = s1.split(" ");
//
if (s2.length != 9) {
f = new Flag();
f.setCustomer_id(s2[0]);
f.setStartDate(s2[6]);
f.setEndDate(s2[7]);
i++;
j++;
flagList.add(f);
continue;
}
f = new Flag();
f.setCustomer_id(s2[0]);
f.setStartDate(s2[7]);
f.setEndDate(s2[8]);
i++;
flagList.add(f);
}
br.close();
reader.close();
}
catch (FileNotFoundException e) {
e.printStackTrace();
}
catch (IOException e) {
e.printStackTrace();
}
return flagList;
}
5、判断时间区间，由于时间格式不同，先要去掉startDate和endDate的“-”，用String的replaceAll()即可，然后就可以直接比较了：
/**
* 先将Flag对象中的startDate和endDate的格式由YYYY-MM-DD转换为YYYYMMDD
* 然后看S2s对象中的formDate是否：
* formDate.compareTo(startDate) >= 0)
* && (formDate.compareTo(endDate) <= 0
* 比对结果为返回值
* @param s
* @param f
* @return
*/
public static boolean inDateField(S2s s, Flag f) {
String formDate = s.getForm_date();
if (f == null) {
return false;
}
String startDate = f.getStartDate();
String endDate = f.getEndDate();
if (formDate == null || "".equals(formDate) || startDate == null
|| "".equals(startDate) || endDate == null
|| "".equals(endDate)) {
return false;
}
startDate = startDate.replaceAll("-", "");
endDate = endDate.replaceAll("-", "");
return (formDate.compareTo(startDate) >= 0)
&& (formDate.compareTo(endDate) <= 0);
}
6、最后我们来看S2s中的cust_id是否存在于表Flag中，我们先读取Flag中的所有记录，然后将所有cust_id存于一个HashSet中，同时以cust_id为Key，以Flag对象为Value，存储到一个HashMap中；然后使用HashSet的contains()看cust_id是否存在于此HashSet中：
custIdSet.contains(s.getCust_id()
完整代码如下：
public static void compareId() {
List s2sList = getListS2sN(readS2s());
List flagList = readFlag();
Flag f = null;
// 存放“新開戶ID清單”中的ID
Set custIdSet = new HashSet();
Map beansMap = new HashMap();
int refSize2 = 0;
if (flagList != null && flagList.size() > 0) {
refSize2 = flagList.size();
}
for (int i = 0; i < refSize2; i++) {
f = (Flag) flagList.get(i);
custIdSet.add(f.getCustomer_id());
beansMap.put(f.getCustomer_id(), f);
}
System.out.println("custIdSet.size(): " + custIdSet.size());
System.out.println("beansMap.size(): " + beansMap.size());
int refSize = 0;
if (s2sList != null && s2sList.size() > 0) {
refSize = s2sList.size();
}
System.out.println("s2sList.size(): " + refSize);
S2s s = null;
for (int i = 0; i < refSize; i++) {
s = (S2s) s2sList.get(i);
f = (Flag) beansMap.get(s.getCust_id());
System.out.println(custIdSet.contains(s.getCust_id()) + " : "
+ inDateField(s, f) + " : " + s.getCust_id() + ":");
if (custIdSet.contains(s.getCust_id()) && inDateField(s, f)) {
System.out.println("####" + i + ":"
+ custIdSet.contains(s.getCust_id()) + " : "
+ inDateField(s, f) + " : " + s.getCust_id() + ":");
}
}
}
7、其他：
可以使用POI生成Excel档，代码如下：
/**
* 将S2s的List生成Excel档
*/
public static void createExcelS2s() {
String xlsFile = "D:/0Excel/S2s.xls";
List s2sList = getListS2sN(readS2s());
try {
// 产生工作簿对象
HSSFWorkbook workbook = new HSSFWorkbook();
// 产生工作表对象,设置工作表的名称为Sheet1
HSSFSheet sheet = workbook.createSheet("Sheet1");
sheet.setColumnWidth((short) 0, (short) 4000);
sheet.setColumnWidth((short) 1, (short) 2000);
sheet.setColumnWidth((short) 2, (short) 3000);
// 产生一行
HSSFRow row = sheet.createRow((short) 0);
// 产生第1个单元格 客戶ID或卡號
HSSFCell cell_01 = row.createCell((short) 0,
HSSFCell.CELL_TYPE_STRING);
cell_01.setCellValue(new HSSFRichTextString("cust_id"));
// 产生第2个单元格 BLK
HSSFCell cell_02 = row.createCell((short) 1,
HSSFCell.CELL_TYPE_STRING);
cell_02.setCellValue(new HSSFRichTextString("form_date"));
// 产生第3个单元格 處理時間
HSSFCell cell_03 = row.createCell((short) 2,
HSSFCell.CELL_TYPE_STRING);
cell_03.setCellValue(new HSSFRichTextString("isTransmit"));
HSSFCell newCell_01 = null;
HSSFCell newCell_02 = null;
HSSFCell newCell_03 = null;
int s2sSize = 0;
if (s2sList != null) {
s2sSize = s2sList.size();
}
S2s s = null;
for (int i = 1; i < s2sSize; i++) {
s = (S2s) s2sList.get(i);
// 产生一行
HSSFRow rowNew = sheet.createRow((short) i);
newCell_01 = rowNew.createCell((short) 0,
HSSFCell.CELL_TYPE_STRING);
newCell_01.setCellValue(new HSSFRichTextString(s.getCust_id()));
// 产生第2个单元格 BLK
newCell_02 = rowNew.createCell((short) 1,
HSSFCell.CELL_TYPE_STRING);
newCell_02
.setCellValue(new HSSFRichTextString(s.getForm_date()));
// 产生第3个单元格 處理時間
newCell_03 = rowNew.createCell((short) 2,
HSSFCell.CELL_TYPE_STRING);
newCell_03.setCellValue(new HSSFRichTextString(s
.getIsTransmit()));
}
FileOutputStream fOut = new FileOutputStream(xlsFile);
workbook.write(fOut);
fOut.flush();
fOut.close();
System.out.println("文件生成...");
// 以下语句读取生成的Excel文件内容
FileInputStream fIn = new FileInputStream(xlsFile);
HSSFWorkbook readWorkBook = new HSSFWorkbook(fIn);
HSSFSheet readSheet = readWorkBook.getSheet("Sheet1");
HSSFRow readRow = readSheet.getRow(0);
HSSFCell readCell = readRow.getCell((short) 0);
System.out.println("第一個單元是：" + readCell.getRichStringCellValue());
}
catch (Exception e) {
e.printStackTrace();
System.out.println(e);
}
}
整个测试类的完整代码如下：
package com.coderdream.s2s;
import java.io.BufferedReader;
import java.io.FileInputStream;
import java.io.FileNotFoundException;
import java.io.FileOutputStream;
import java.io.FileReader;
import java.io.IOException;
import java.util.ArrayList;
import java.util.HashMap;
import java.util.HashSet;
import java.util.List;
import java.util.Map;
import java.util.Set;
import org.apache.poi.hssf.usermodel.HSSFCell;
import org.apache.poi.hssf.usermodel.HSSFRichTextString;
import org.apache.poi.hssf.usermodel.HSSFRow;
import org.apache.poi.hssf.usermodel.HSSFSheet;
import org.apache.poi.hssf.usermodel.HSSFWorkbook;
public class Test {
/** S2S_txt文件位置 */
private static String s2sFileName = "S2S_1.txt";
/** Flag_txt文件位置 */
private static String flagFileName = "Flag_1.txt";
/**
* @param args
*/
public static void main(String[] args) {
//readS2s();
//printListS2s(readS2s());
//printListS2s(getListS2sN(readS2s()));
//printListFlag(readFlag());
//compareId();
//testSet();
//createExcel();
//createExcelFlag();
compareId();
//testReplaceAll();
}
/**
* 从S2s 的txt文件中按行读取，将得到的3个字符串分别放入S2s对象中，
* 然后将对于存储在返回List中
*
* @return
*/
public static List readS2s() {
FileReader reader = null;
List s2sList = new ArrayList();
try {
reader = new FileReader(s2sFileName);
BufferedReader br = new BufferedReader(reader);
String s1 = null;
String[] s2 = null;
S2s s = null;
while ((s1 = br.readLine()) != null) {
// 根据导出的文本可知，字符串以空格分开
s2 = s1.split(" ");
s = new S2s();
s.setCust_id(s2[0]);
s.setForm_date(s2[7]);
s.setIsTransmit(s2[9]);
s2sList.add(s);
}
br.close();
reader.close();
}
catch (FileNotFoundException e) {
e.printStackTrace();
}
catch (IOException e) {
e.printStackTrace();
}
return s2sList;
}
/**
* 从Flag 的txt文件中按行读取，将得到的3个字符串分别放入Flag对象中，
* 然后将对于存储在返回List中
* @return
*/
public static List readFlag() {
FileReader reader = null;
List flagList = new ArrayList();
try {
reader = new FileReader(flagFileName);
BufferedReader br = new BufferedReader(reader);
String s1 = null;
String[] s2 = null;
Flag f = null;
int i = 0;
int j = 0;
while ((s1 = br.readLine()) != null) {
s2 = s1.split(" ");
//
if (s2.length != 9) {
f = new Flag();
f.setCustomer_id(s2[0]);
f.setStartDate(s2[6]);
f.setEndDate(s2[7]);
i++;
j++;
flagList.add(f);
continue;
}
f = new Flag();
f.setCustomer_id(s2[0]);
f.setStartDate(s2[7]);
f.setEndDate(s2[8]);
i++;
flagList.add(f);
}
br.close();
reader.close();
}
catch (FileNotFoundException e) {
e.printStackTrace();
}
catch (IOException e) {
e.printStackTrace();
}
return flagList;
}
/**
* @param s2
*/
public static void printArray(String[] s2) {
for (int i = 0; i < s2.length; i++) {
if (s2[i] != null && !"".equals(s2[i].trim())) {
System.out.print(s2[i] + ":");
}
}
System.out.println();
}
/**
* @param s2sList
*/
public static void printListS2s(List s2sList) {
S2s s = null;
int size = 0;
if (s2sList != null) {
size = s2sList.size();
}
int index = 0;
for (int i = 0; i < size; i++) {
s = (S2s) s2sList.get(i);
index = i + 1;
System.out.println(index + "\t:" + s.getCust_id() + ":"
+ s.getForm_date() + ":" + s.getIsTransmit());
}
}
/**
* @param s2s
*/
public static void printS2s(S2s s2s) {
if (s2s != null) {
System.out.println(s2s.getCust_id() + ":" + s2s.getForm_date()
+ ":" + s2s.getIsTransmit());
}
}
/**
* @param s2sList
* @return
*/
public static List getListS2sN(List s2sList) {
List list = new ArrayList();
S2s s = null;
int size = 0;
if (s2sList != null) {
size = s2sList.size();
}
for (int i = 0; i < size; i++) {
s = (S2s) s2sList.get(i);
if ("N".equals(s.getIsTransmit())) {
list.add(s);
}
}
return list;
}
/**
* @param flagList
*/
public static void printListFlag(List flagList) {
Flag f = null;
int size = 0;
if (flagList != null) {
size = flagList.size();
}
int index = 0;
for (int i = 0; i < size; i++) {
f = (Flag) flagList.get(i);
index = i + 1;
System.out.println(index + "\t:" + f.getCustomer_id() + ":"
+ f.getStartDate() + ":" + f.getEndDate());
}
}
/**
* @param flag
*/
public static void printFlag(Flag flag) {
if (flag != null) {
System.out.println(flag.getCustomer_id() + ":"
+ flag.getStartDate() + ":" + flag.getEndDate());
}
}
/**
* 先将Flag对象中的startDate和endDate的格式由YYYY-MM-DD转换为YYYYMMDD
* 然后看S2s对象中的formDate是否：
* formDate.compareTo(startDate) >= 0)
* && (formDate.compareTo(endDate) <= 0
* 比对结果为返回值
* @param s
* @param f
* @return
*/
public static boolean inDateField(S2s s, Flag f) {
String formDate = s.getForm_date();
if (f == null) {
return false;
}
String startDate = f.getStartDate();
String endDate = f.getEndDate();
if (formDate == null || "".equals(formDate) || startDate == null
|| "".equals(startDate) || endDate == null
|| "".equals(endDate)) {
return false;
}
startDate = startDate.replaceAll("-", "");
endDate = endDate.replaceAll("-", "");
return (formDate.compareTo(startDate) >= 0)
&& (formDate.compareTo(endDate) <= 0);
}
/**
*
*/
public static void compareId() {
List s2sList = getListS2sN(readS2s());
List flagList = readFlag();
Flag f = null;
// 存放“新開戶ID清單”中的ID
Set custIdSet = new HashSet();
Map beansMap = new HashMap();
int refSize2 = 0;
if (flagList != null && flagList.size() > 0) {
refSize2 = flagList.size();
}
for (int i = 0; i < refSize2; i++) {
f = (Flag) flagList.get(i);
custIdSet.add(f.getCustomer_id());
beansMap.put(f.getCustomer_id(), f);
}
System.out.println("custIdSet.size(): " + custIdSet.size());
System.out.println("beansMap.size(): " + beansMap.size());
int refSize = 0;
if (s2sList != null && s2sList.size() > 0) {
refSize = s2sList.size();
}
System.out.println("s2sList.size(): " + refSize);
S2s s = null;
for (int i = 0; i < refSize; i++) {
s = (S2s) s2sList.get(i);
f = (Flag) beansMap.get(s.getCust_id());
System.out.println(custIdSet.contains(s.getCust_id()) + " : "
+ inDateField(s, f) + " : " + s.getCust_id() + ":");
if (custIdSet.contains(s.getCust_id()) && inDateField(s, f)) {
System.out.println("####" + i + ":"
+ custIdSet.contains(s.getCust_id()) + " : "
+ inDateField(s, f) + " : " + s.getCust_id() + ":");
}
}
}
/**
* 将S2s的List生成Excel档
*/
public static void createExcelS2s() {
String xlsFile = "D:/0Excel/S2s.xls";
List s2sList = getListS2sN(readS2s());
try {
// 产生工作簿对象
HSSFWorkbook workbook = new HSSFWorkbook();
// 产生工作表对象,设置工作表的名称为Sheet1
HSSFSheet sheet = workbook.createSheet("Sheet1");
sheet.setColumnWidth((short) 0, (short) 4000);
sheet.setColumnWidth((short) 1, (short) 2000);
sheet.setColumnWidth((short) 2, (short) 3000);
// 产生一行
HSSFRow row = sheet.createRow((short) 0);
// 产生第1个单元格 客戶ID或卡號
HSSFCell cell_01 = row.createCell((short) 0,
HSSFCell.CELL_TYPE_STRING);
cell_01.setCellValue(new HSSFRichTextString("cust_id"));
// 产生第2个单元格 BLK
HSSFCell cell_02 = row.createCell((short) 1,
HSSFCell.CELL_TYPE_STRING);
cell_02.setCellValue(new HSSFRichTextString("form_date"));
// 产生第3个单元格 處理時間
HSSFCell cell_03 = row.createCell((short) 2,
HSSFCell.CELL_TYPE_STRING);
cell_03.setCellValue(new HSSFRichTextString("isTransmit"));
HSSFCell newCell_01 = null;
HSSFCell newCell_02 = null;
HSSFCell newCell_03 = null;
int s2sSize = 0;
if (s2sList != null) {
s2sSize = s2sList.size();
}
S2s s = null;
for (int i = 1; i < s2sSize; i++) {
s = (S2s) s2sList.get(i);
// 产生一行
HSSFRow rowNew = sheet.createRow((short) i);
newCell_01 = rowNew.createCell((short) 0,
HSSFCell.CELL_TYPE_STRING);
newCell_01.setCellValue(new HSSFRichTextString(s.getCust_id()));
// 产生第2个单元格 BLK
newCell_02 = rowNew.createCell((short) 1,
HSSFCell.CELL_TYPE_STRING);
newCell_02
.setCellValue(new HSSFRichTextString(s.getForm_date()));
// 产生第3个单元格 處理時間
newCell_03 = rowNew.createCell((short) 2,
HSSFCell.CELL_TYPE_STRING);
newCell_03.setCellValue(new HSSFRichTextString(s
.getIsTransmit()));
}
FileOutputStream fOut = new FileOutputStream(xlsFile);
workbook.write(fOut);
fOut.flush();
fOut.close();
System.out.println("文件生成...");
// 以下语句读取生成的Excel文件内容
FileInputStream fIn = new FileInputStream(xlsFile);
HSSFWorkbook readWorkBook = new HSSFWorkbook(fIn);
HSSFSheet readSheet = readWorkBook.getSheet("Sheet1");
HSSFRow readRow = readSheet.getRow(0);
HSSFCell readCell = readRow.getCell((short) 0);
System.out.println("第一個單元是：" + readCell.getRichStringCellValue());
}
catch (Exception e) {
e.printStackTrace();
System.out.println(e);
}
}
public static void createExcelFlag() {
String xlsFile = "D:/0Excel/Flag.xls";
List flagList = readFlag();
try {
// 产生工作簿对象
HSSFWorkbook workbook = new HSSFWorkbook();
// 产生工作表对象,设置工作表的名称为Sheet1
HSSFSheet sheet = workbook.createSheet("Sheet1");
sheet.setColumnWidth((short) 0, (short) 4000);
sheet.setColumnWidth((short) 1, (short) 6000);
sheet.setColumnWidth((short) 2, (short) 6000);
// 产生一行
HSSFRow row = sheet.createRow((short) 0);
// 产生第1个单元格 cust_id
HSSFCell cell_01 = row.createCell((short) 0,
HSSFCell.CELL_TYPE_STRING);
cell_01.setCellValue(new HSSFRichTextString("cust_id"));
// 产生第2个单元格 startDate
HSSFCell cell_02 = row.createCell((short) 1,
HSSFCell.CELL_TYPE_STRING);
cell_02.setCellValue(new HSSFRichTextString("startDate"));
// 产生第3个单元格 endDate
HSSFCell cell_03 = row.createCell((short) 2,
HSSFCell.CELL_TYPE_STRING);
cell_03.setCellValue(new HSSFRichTextString("endDate"));
HSSFCell newCell_01 = null;
HSSFCell newCell_02 = null;
HSSFCell newCell_03 = null;
int flagSize = 0;
if (flagList != null) {
flagSize = flagList.size();
}
Flag f = null;
for (int i = 1; i < flagSize; i++) {
f = (Flag) flagList.get(i);
// 产生一行
HSSFRow rowNew = sheet.createRow((short) i);
// 产生第1个单元格 cust_id
newCell_01 = rowNew.createCell((short) 0,
HSSFCell.CELL_TYPE_STRING);
newCell_01.setCellValue(new HSSFRichTextString(f
.getCustomer_id()));
// 产生第2个单元格 startDate
newCell_02 = rowNew.createCell((short) 1,
HSSFCell.CELL_TYPE_STRING);
newCell_02
.setCellValue(new HSSFRichTextString(f.getStartDate()));
// 产生第3个单元格 endDate
newCell_03 = rowNew.createCell((short) 2,
HSSFCell.CELL_TYPE_STRING);
newCell_03.setCellValue(new HSSFRichTextString(f.getEndDate()));
}
FileOutputStream fOut = new FileOutputStream(xlsFile);
workbook.write(fOut);
fOut.flush();
fOut.close();
System.out.println("文件生成...");
// 以下语句读取生成的Excel文件内容
FileInputStream fIn = new FileInputStream(xlsFile);
HSSFWorkbook readWorkBook = new HSSFWorkbook(fIn);
HSSFSheet readSheet = readWorkBook.getSheet("Sheet1");
HSSFRow readRow = readSheet.getRow(0);
HSSFCell readCell = readRow.getCell((short) 0);
System.out.println("第一個單元是：" + readCell.getRichStringCellValue());
}
catch (Exception e) {
System.out.println(e);
}
}
public static void testReplaceAll() {
String startDate = "2008.09.01";
String endDate = "2008.09.30";
String sDate = startDate.replaceAll("[.]", "");
String eDate = endDate.replaceAll("[.]", "");
System.out.println(startDate + ":" + endDate + ":" + sDate + ":"
+ eDate);
}
}
运行结果：
custIdSet.size(): 20 beansMap.size(): 20 s2sList.size(): 10 true : false : S223821747: true : false : L123462919: false : false : F223700449: false : false : U120222840: true : false : F224800911: true : false : S223821747: true : true : Z100098584: ####6:true : true : Z100098584: false : false : L100867210: true : true : C221114157: ####8:true : true : C221114157: true : true : B122081672: ####9:true : true : B122081672: