properties读取文件
package portal.portalblo.utils;
import org.slf4j.Logger;
import org.slf4j.LoggerFactory;
import java.io.*;
import java.util.Properties;
public class PropertyUtil {
private static final Logger logger = LoggerFactory.getLogger(PropertyUtil.class);
private static Properties props;
static{
loadProps();
}
synchronized static private void loadProps(){
/*logger.info("开始加载properties文件内容.......");*/
props = new Properties();
InputStream in = null;
try {
in = PropertyUtil.class.getClassLoader().getResourceAsStream("portal/portalblo/utils/EAPCasUrl.properties");
props.load(in);
} catch (FileNotFoundException e) {
logger.error("EAPCasUrl.properties");
} catch (IOException e) {
logger.error("出现IOException");
} finally {
try {
if(null != in) {
in.close();
}
} catch (IOException e) {
logger.error("EAPCasUrl.properties文件流关闭出现异常");
}
}
/*logger.info("加载properties文件内容完成...........");*/
logger.info("properties文件内容：" + props);
}
public static String getProperty(String key){
if(null == props) {
loadProps();
}
return props.getProperty(key);
}
public static String getProperty(String key, String defaultValue) {
if(null == props) {
loadProps();
}
return props.getProperty(key, defaultValue);
}
}
properties文档
driverClass=dm.jdbc.driver.DmDriver
jdbcUrl=jdbc:dm://localhost:5236/ACAP
user=ACAP
password=HLWZWFWPT133
批量下载
import java.io.ByteArrayOutputStream;
import java.io.File;
import java.io.FileInputStream;
import java.io.FileNotFoundException;
import java.io.FileOutputStream;
import java.io.IOException;
import java.net.URLDecoder;
import java.text.SimpleDateFormat;
import java.util.Date;
import java.util.List;
import java.util.zip.ZipEntry;
import java.util.zip.ZipOutputStream;
import javax.servlet.http.HttpServletRequest;
import javax.ws.rs.core.Response;
import javax.ws.rs.core.Response.ResponseBuilder;
public static Response batchDownload(List<TFileList> fList,HttpServletRequest request){
SimpleDateFormat sdf = new SimpleDateFormat("yyyyMMddhhmmss"); ;
String dates = sdf.format(new Date());
String zipFrontFile = "附件包-"+dates+".zip";
String zipFile = request.getSession().getServletContext().getRealPath("/")+"/uploadFile/netPlus/zip/"+zipFrontFile;
try{
if(!new File(request.getSession().getServletContext().getRealPath("/")+"/uploadFile/netPlus/zip").exists())
{
new File(request.getSession().getServletContext().getRealPath("/")+"/uploadFile/netPlus/zip").mkdirs();
}
byte[] buf = new byte[2048];
// 创建值班单zip文件
ZipOutputStream out = new ZipOutputStream(new FileOutputStream(zipFile));
// 循环压缩文件
for(TFileList tList:fList){
File file = new File(request.getSession().getServletContext().getRealPath("/")+URLDecoder.decode(tList.getFilepath(), "UTF-8"));
FileInputStream in = new FileInputStream(file);
// 添加压缩包文件
out.putNextEntry(new ZipEntry(file.getName()));
int len = 0;
while ((len = in.read(buf)) > 0) {
out.write(buf, 0, len);
}
// 关闭入口
out.closeEntry();
// 关闭文件流
in.close();
}
// 关闭文件流
out.close();
//下载zip
File file = new File(zipFile);
byte[] buffer = null;
try{
FileInputStream fis = new FileInputStream(file);
ByteArrayOutputStream bos = new ByteArrayOutputStream();
byte[] b = new byte[1024];
int n;
while ((n = fis.read(b)) != -1){
bos.write(b, 0, n);
}
fis.close();
bos.close();
buffer = bos.toByteArray();
}
catch (FileNotFoundException e){
e.printStackTrace();
}
catch (IOException e){
e.printStackTrace();
}
ResponseBuilder builder = Response.ok(buffer, "application/octet-stream");
builder.header("Content-Disposition", "attachment;filename="+new String(file.getName().getBytes("UTF-8"), "ISO8859-1"));
Response response = builder.build();
return response;
} catch (Exception e) {
// logger.error("异常", e);
} finally {
//删zip
File file=new File(zipFile);
if (!file.isDirectory()) {
file.delete();
}
}
return null;
}
下载
import java.io.ByteArrayOutputStream;
import java.io.File;
import java.io.FileInputStream;
import java.io.FileNotFoundException;
import java.io.IOException;
import java.io.UnsupportedEncodingException;
import java.net.URLDecoder;
import javax.servlet.http.HttpServletRequest;
import javax.ws.rs.core.Response;
import javax.ws.rs.core.Response.ResponseBuilder;
public static Response download(HttpServletRequest request,String fillPath,String fillName) throws UnsupportedEncodingException{
String file_path = URLDecoder.decode(fillPath, "UTF-8");
String att_name = "";
if(isNotNull(fillName)){
att_name = URLDecoder.decode(fillName, "UTF-8");
}else{
att_name = file_path.substring(file_path.lastIndexOf("/")+1,file_path.length());
}
//从服务端读出
file_path = request.getSession().getServletContext().getRealPath("/") + file_path;
File file = new File(file_path);
//ByteArrayOutputStream os = new ByteArrayOutputStream();
byte[] buffer = null;
try{
FileInputStream fis = new FileInputStream(file);
ByteArrayOutputStream bos = new ByteArrayOutputStream();
byte[] b = new byte[1024];
int n;
while ((n = fis.read(b)) != -1){
bos.write(b, 0, n);
}
fis.close();
bos.close();
buffer = bos.toByteArray();
}
catch (FileNotFoundException e){
e.printStackTrace();
}
catch (IOException e){
e.printStackTrace();
}
ResponseBuilder builder = Response.ok(buffer, "application/octet-stream");
builder.header("Content-Disposition", "attachment;filename="+new String(att_name.getBytes("UTF-8"), "ISO8859-1"));
Response response = builder.build();
return response;
}
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