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fix: fix poi write #348

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Merged
psxjoy merged 2 commits into from
May 7, 2025
+41 −78
Merged

fix: fix poi write #348

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c20f75f
fix: fix poi write
alaahong Apr 30, 2025
af3ff4d
fix: fix poi write
alaahong Apr 30, 2025
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119 changes: 41 additions & 78 deletions fastexcel-test/src/test/java/cn/idev/excel/test/temp/poi/PoiWriteTest.java
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Original file line number Diff line number Diff line change
@@ -1,120 +1,83 @@
package cn.idev.excel.test.temp.poi;

import java.io.BufferedInputStream;
import java.io.FileOutputStream;
import java.io.IOException;
import java.io.InputStream;
import java.math.BigDecimal;
import java.net.URL;
import java.util.regex.Pattern;

import com.alibaba.fastjson2.JSON;

import org.apache.poi.xssf.streaming.SXSSFCell;
import org.apache.poi.xssf.streaming.SXSSFRow;
import org.apache.poi.xssf.streaming.SXSSFSheet;
import org.apache.poi.xssf.streaming.SXSSFWorkbook;
import org.junit.jupiter.api.Test;
import org.junit.jupiter.api.io.TempDir;
import org.slf4j.Logger;
import org.slf4j.LoggerFactory;

import java.io.FileOutputStream;
import java.io.IOException;
import java.math.BigDecimal;
import java.nio.file.Path;

/**
* 测试poi
*
* @author Jiaju Zhuang
**/

public class PoiWriteTest {

private static final Logger LOGGER = LoggerFactory.getLogger(PoiWriteTest.class);

@Test
public void write0() throws IOException {
FileOutputStream fileOutputStream =
new FileOutputStream("D://test//tt132" + System.currentTimeMillis() + ".xlsx");
SXSSFWorkbook sxxsFWorkbook = new SXSSFWorkbook();
SXSSFSheet sheet = sxxsFWorkbook.createSheet("t1");
SXSSFRow row = sheet.createRow(0);
SXSSFCell cell1 = row.createCell(0);
cell1.setCellValue(999999999999999L);
SXSSFCell cell2 = row.createCell(1);
cell2.setCellValue(1000000000000001L);
SXSSFCell cell32 = row.createCell(2);
cell32.setCellValue(300.35f);
sxxsFWorkbook.write(fileOutputStream);
public void write0(@TempDir Path path) throws IOException {
try (FileOutputStream fileOutputStream = new FileOutputStream(
path.resolve("PoiWriteTest_" + System.currentTimeMillis() + ".xlsx").toFile());
SXSSFWorkbook workbook = new SXSSFWorkbook()) {
SXSSFSheet sheet = workbook.createSheet("t1");
SXSSFRow row = sheet.createRow(0);
SXSSFCell cell1 = row.createCell(0);
cell1.setCellValue(999999999999999L);
SXSSFCell cell2 = row.createCell(1);
cell2.setCellValue(1000000000000001L);
SXSSFCell cell32 = row.createCell(2);
cell32.setCellValue(300.35f);
workbook.write(fileOutputStream);
}
}

@Test
public void write01() throws IOException {
float ff = 300.35f;
BigDecimal bd = new BigDecimal(Float.toString(ff));
System.out.println(bd.doubleValue());
System.out.println(bd.floatValue());

}

@Test
public void write() throws IOException {
FileOutputStream fileOutputStream =
new FileOutputStream("D://test//tt132" + System.currentTimeMillis() + ".xlsx");
SXSSFWorkbook sxxsFWorkbook = new SXSSFWorkbook();
SXSSFSheet sheet = sxxsFWorkbook.createSheet("t1");
SXSSFRow row = sheet.createRow(0);
SXSSFCell cell1 = row.createCell(0);
cell1.setCellValue(Long.toString(999999999999999L));
SXSSFCell cell2 = row.createCell(1);
cell2.setCellValue(Long.toString(1000000000000001L));
sxxsFWorkbook.write(fileOutputStream);
public void write(@TempDir Path path) throws IOException {
try (FileOutputStream fileOutputStream = new FileOutputStream(
path.resolve("PoiWriteTest_" + System.currentTimeMillis() + ".xlsx").toFile());
SXSSFWorkbook workbook = new SXSSFWorkbook()) {
SXSSFSheet sheet = workbook.createSheet("t1");
SXSSFRow row = sheet.createRow(0);
SXSSFCell cell1 = row.createCell(0);
cell1.setCellValue(Long.toString(999999999999999L));
SXSSFCell cell2 = row.createCell(1);
cell2.setCellValue(Long.toString(1000000000000001L));
workbook.write(fileOutputStream);
}
}

@Test
public void write1() throws IOException {
public void write1() {
System.out.println(JSON.toJSONString(long2Bytes(-999999999999999L)));
System.out.println(JSON.toJSONString(long2Bytes(-9999999999999999L)));
}

public static byte[] long2Bytes(long num) {
byte[] byteNum = new byte[8];
for (int ix = 0; ix < 8; ++ix) {
int offset = 64 - (ix + 1) * 8;
byteNum[ix] = (byte)((num >> offset) & 0xff);
byteNum[ix] = (byte) ((num >> offset) & 0xff);
}
return byteNum;
}

private static final Pattern FILL_PATTERN = Pattern.compile("^.*?\\$\\{[^}]+}.*?$");

@Test
public void part() throws IOException {
LOGGER.info("test:{}", FILL_PATTERN.matcher("${name今年${number}岁了").matches());
LOGGER.info("test:{}", FILL_PATTERN.matcher("${name}今年${number}岁了").matches());
LOGGER.info("test:{}", FILL_PATTERN.matcher("${name}").matches());
LOGGER.info("test:{}", FILL_PATTERN.matcher("${number}").matches());
LOGGER.info("test:{}", FILL_PATTERN.matcher("${name}今年").matches());
LOGGER.info("test:{}", FILL_PATTERN.matcher("今年${number}岁了").matches());
LOGGER.info("test:{}", FILL_PATTERN.matcher("今年${number岁了").matches());
LOGGER.info("test:{}", FILL_PATTERN.matcher("${}").matches());
LOGGER.info("test:{}", FILL_PATTERN.matcher("胜多负少").matches());
}

private static final Pattern FILL_PATTERN2 = Pattern.compile("测试");

@Test
public void part2() throws IOException {
LOGGER.info("test:{}", FILL_PATTERN.matcher("我是测试呀").find());
LOGGER.info("test:{}", FILL_PATTERN.matcher("测试u").matches());
LOGGER.info("test:{}", FILL_PATTERN.matcher("我是测试").matches());

}

@Test
public void part4() throws IOException {
//URL url=new URL("http://120.55.161.4/group1/M00/00/00/i8QJ8WFfwMiAXKYrAAACqC1MFiY641.png");
URL url = new URL(
"https://img-blog.csdn.net/20160729002743309?watermark/2/text/aHR0cDovL2Jsb2cuY3Nkbi5uZXQv/font/5a6L5L2T"
+ "/fontsize/400/fill/I0JBQkFCMA==/dissolve/70/gravity/Center");

InputStream in = new BufferedInputStream(url.openStream());

}


}