将图像文件保存在特定的目录jsf中 [英] save image file in specific directory jsf primefaces project

问题描述

我想将byte []文件保存到一个特定的目录中：
我从这个方法得到它：

  public void setUploadedPicture（UploadedFile uploadedPicture）
 {
 System.out.println（set：+ uploadedPicture.getFileName（）+size：+ uploadedPicture.getSize（））; 
 this.uploadedPicture = uploadedPicture; 
} 
  

，我访问的字节[]与：

  uploadedPicture.getContents（）
  

我测试了这个链接，但没有结果

如何将其保存到我的项目或外部的特定目录

谢谢

** * ** * *** / em> * ** * ** * ** *
这里是代码whic的作品，但有时我有错误：

  public void setUploadedPicture（UploadedFile uploadedPicture）
 {
 System.out.println（set：+ uploadedPicture.getFileName（）+size：+ uploadedPicture.getSize（））; 
 this.uploadedPicture = uploadedPicture; 
 
 InputStream inputStr = null; 
 try {
 inputStr = uploadedPicture.getInputstream（）; 
} catch（IOException e）{
 e.printStackTrace（）; 
} 
 
 //创建目标文件
 String destPath =C：\\+ uploadedPicture.getFileName（）; 
文件destFile = new File（destPath）; 
 
 //使用org.apache.commons.io.FileUtils复制文件
 try {
 FileUtils.copyInputStreamToFile（inputStr，destFile）; 
} catch（IOException e）{
 e.printStackTrace（）; 
} 
 
} 
  

解决方案

  public void handleFileUpload（FileUploadEvent event）{
 
 //从事件获取上传的文件
 UploadFile uploadedFile =（UploadedFile）event.getFile ）; 
 
 //从上传的文件创建一个InputStream 
 InputStream inputStr = null; 
 try {
 inputStr = uploadedFile.getInputstream（）; 
} catch（IOException e）{
 // log error 
} 
 
 //创建目标文件
 String destPath =你的路径在这里; 
文件destFile = new File（destPath）; 
 
 //使用org.apache.commons.io.FileUtils复制文件
 try {
 FileUtils.copyInputStreamToFile（inputStr，destFile）; 
} catch（IOException e）{
 //日志错误
} 
} 
  

I want to save byte[] file into a specific directory : I get it from this method :

public void setUploadedPicture(UploadedFile uploadedPicture)
{
    System.out.println("set : "+uploadedPicture.getFileName()+" size : "+uploadedPicture.getSize());        
    this.uploadedPicture = uploadedPicture;
}

and I access the byte[] with :

uploadedPicture.getContents()

I tested this link but no result

how to save it into a specific directory either inside my project or outside

thank you

*********EDIT********** here is the code whic works but sometimes I have the error :

public void setUploadedPicture(UploadedFile uploadedPicture)
{
    System.out.println("set : "+uploadedPicture.getFileName()+" size : "+uploadedPicture.getSize());        
    this.uploadedPicture = uploadedPicture;

    InputStream inputStr = null;
    try {
        inputStr = uploadedPicture.getInputstream();
    } catch (IOException e) {
        e.printStackTrace();
    }

    //create destination File
    String destPath = "C:\\"+uploadedPicture.getFileName();
    File destFile = new File(destPath);

    //use org.apache.commons.io.FileUtils to copy the File
    try {                    
        FileUtils.copyInputStreamToFile(inputStr, destFile);
    } catch (IOException e) {
        e.printStackTrace();
    }

}

解决方案

public void handleFileUpload(FileUploadEvent event) {  

    //get uploaded file from the event
    UploadedFile uploadedFile = (UploadedFile)event.getFile();

    //create an InputStream from the uploaded file
    InputStream inputStr = null;
    try {
        inputStr = uploadedFile.getInputstream();
    } catch (IOException e) {
        //log error
    }

    //create destination File
    String destPath = "your path here";
    File destFile = new File(destPath);

    //use org.apache.commons.io.FileUtils to copy the File
    try {                    
        FileUtils.copyInputStreamToFile(inputStr, destFile);
    } catch (IOException e) {
        //log error
    }
}

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