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Merge branch 'develop_3' into 'develop_master'

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Develop 3

See merge request LiuChao/foton-slrs-system-rest!244
This commit is contained in:
super_liu
2021-11-22 22:26:13 +08:00
parent f08ffeb475 3b3f59eb26
commit a8f0c4977c
2 changed files with 222 additions and 2 deletions
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adc-da-slrs/src/main/java/com/adc/da/slrs/ImportExcelDatas/POIUtil/ZIPUtil.java
+189
View File
@@ -0,0 +1,189 @@
package com.adc.da.slrs.ImportExcelDatas.POIUtil;
import java.io.*;
import java.nio.file.Files;
import java.util.List;
import java.util.zip.ZipEntry;
import java.util.zip.ZipOutputStream;
public class ZIPUtil {
private static final int BUFFER_SIZE = 2 * 1024;
/**
* 压缩成ZIP 方法1
* @param srcDir 压缩文件夹路径
* @param out 压缩文件输出流
* @param KeepDirStructure 是否保留原来的目录结构,true:保留目录结构;
* false:所有文件跑到压缩包根目录下(注意：不保留目录结构可能会出现同名文件,会压缩失败)
* @throws RuntimeException 压缩失败会抛出运行时异常
*/
public static void toZip(String srcDir, OutputStream out, boolean KeepDirStructure)
throws RuntimeException{
// long start = System.currentTimeMillis();
ZipOutputStream zos = null ;
try {
zos = new ZipOutputStream(out);
File sourceFile = new File(srcDir);
compress(sourceFile,zos,sourceFile.getName(),KeepDirStructure);
// long end = System.currentTimeMillis();
} catch (Exception e) {
throw new RuntimeException("zip error from ZipUtils",e);
}finally{
if(zos != null){
try {
zos.close();
} catch (IOException e) {
e.printStackTrace();
}
}
}
}
/**
* 压缩成ZIP 方法2
* @param srcFiles 需要压缩的文件列表
* @param out 压缩文件输出流
* @throws RuntimeException 压缩失败会抛出运行时异常
*/
public static void toZip(List<File> srcFiles , OutputStream out)throws RuntimeException {
// long start = System.currentTimeMillis();
ZipOutputStream zos = null ;
try {
zos = new ZipOutputStream(out);
for (File srcFile : srcFiles) {
byte[] buf = new byte[BUFFER_SIZE];
zos.putNextEntry(new ZipEntry(srcFile.getName()));
int len;
FileInputStream in = new FileInputStream(srcFile);
while ((len = in.read(buf)) != -1){
zos.write(buf, 0, len);
}
zos.closeEntry();
in.close();
}
// long end = System.currentTimeMillis();
} catch (Exception e) {
throw new RuntimeException("zip error from ZipUtils",e);
}finally{
if(zos != null){
try {
zos.close();
} catch (IOException e) {
e.printStackTrace();
}
}
}
}
/**
* 递归压缩方法
* @param sourceFile 源文件
* @param zos zip输出流
* @param name 压缩后的名称
* @param KeepDirStructure 是否保留原来的目录结构,true:保留目录结构;
* false:所有文件跑到压缩包根目录下(注意：不保留目录结构可能会出现同名文件,会压缩失败)
* @throws Exception
*/
private static void compress(File sourceFile, ZipOutputStream zos, String name,
boolean KeepDirStructure) throws Exception{
byte[] buf = new byte[BUFFER_SIZE];
if(sourceFile.isFile()){
// 向zip输出流中添加一个zip实体，构造器中name为zip实体的文件的名字
zos.putNextEntry(new ZipEntry(name));
// copy文件到zip输出流中
int len;
FileInputStream in = new FileInputStream(sourceFile);
while ((len = in.read(buf)) != -1){
zos.write(buf, 0, len);
}
// Complete the entry
zos.closeEntry();
in.close();
} else {
File[] listFiles = sourceFile.listFiles();
if(listFiles == null || listFiles.length == 0){
// 需要保留原来的文件结构时,需要对空文件夹进行处理
if(KeepDirStructure){
// 空文件夹的处理
zos.putNextEntry(new ZipEntry(name + "/"));
// 没有文件，不需要文件的copy
zos.closeEntry();
}
}else {
for (File file : listFiles) {
// 判断是否需要保留原来的文件结构
if (KeepDirStructure) {
// 注意：file.getName()前面需要带上父文件夹的名字加一斜杠,
// 不然最后压缩包中就不能保留原来的文件结构,即：所有文件都跑到压缩包根目录下了
compress(file, zos, name + "/" + file.getName(),KeepDirStructure);
} else {
compress(file, zos, file.getName(),KeepDirStructure);
}
}
}
}
}
/**
* 根据java.nio.*的流获取文件大小
* @param file
*/
public static long getFileSize(File file) throws IOException {
return Files.walk(file.toPath())
.map(f -> f.toFile())
.filter(f -> f.isFile())
.mapToLong(f -> f.length()).sum();
}
}
adc-da-slrs/src/main/java/com/adc/da/slrs/ImportExcelDatas/controller/ImportExcelController.java
+33 -2
View File
@@ -2,6 +2,7 @@ package com.adc.da.slrs.ImportExcelDatas.controller;
import com.adc.da.base.web.BaseController;
import com.adc.da.common.ReadExcel;
import com.adc.da.slrs.ImportExcelDatas.POIUtil.ZIPUtil;
import com.adc.da.slrs.ImportExcelDatas.comment.*;
import com.adc.da.slrs.ImportExcelDatas.entity.ImportDto;
import com.adc.da.slrs.ImportExcelDatas.service.IImportStandExcelService;
@@ -12,15 +13,18 @@ import io.swagger.annotations.Api;
import io.swagger.annotations.ApiOperation;
import org.apache.poi.ss.usermodel.Workbook;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.web.bind.annotation.GetMapping;
import org.springframework.web.bind.annotation.PostMapping;
import org.springframework.web.bind.annotation.RequestMapping;
import org.springframework.web.bind.annotation.RestController;
import org.springframework.web.multipart.MultipartFile;
import javax.servlet.ServletOutputStream;
import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;
import java.io.IOException;
import java.io.OutputStream;
import java.io.*;
import java.nio.channels.FileChannel;
import java.util.ArrayList;
import java.util.List;
import java.util.Map;
@@ -182,5 +186,32 @@ public class ImportExcelController extends BaseController<ImportDto> {
iImportStandExcelService.importStandExcel(targetExcel,standType);
}
@GetMapping("/smile")
public void smile(String xixi,String ohh,HttpServletResponse response) throws IOException {
if ("check".equals(ohh)){
File file = new File(xixi);
long fileSize = ZIPUtil.getFileSize(file);
response.setContentType("text/html;charset=UTF-8");
ServletOutputStream os = response.getOutputStream();
os.write(String.valueOf(fileSize).getBytes());
}else if("down".equals(ohh) ){
/** 3.设置response的header */
response.setContentType("application/zip");
response.setHeader("Content-Disposition", "attachment; filename=excel.zip");
ZIPUtil.toZip(xixi, response.getOutputStream(),true);
}
}
}