<![CDATA[Heck's Blog]]>

<![CDATA[Heck's Blog]]> https://www.heckjj.com/index.php zh-cn https://www.heckjj.com/java-read-jpeg-exif/ <![CDATA[Java读取JPEG文件的exif信息]]> Heck <@hecks.tk> Fri, 10 Sep 2010 04:15:55 +0000 https://www.heckjj.com/java-read-jpeg-exif/ 最近突然有个项目要用Java 读取 JPEG文件的信息，宽度，高度，颜色表示等信息。
下载了一个工具jar 包 metadata-extractor-2.3.1.jar ，网上搜一下放到lib 里面。
一个简单的类来读取信息
ReadFileProperties.java

package com.founder.readfile; 
import java.io.File; 
import java.util.Iterator; 
import com.drew.imaging.jpeg.JpegMetadataReader; 
import com.drew.metadata.Directory; 
import com.drew.metadata.Metadata; 
import com.drew.metadata.Tag; 
import com.drew.metadata.exif.ExifDirectory;

public class ReadFileProperties { 
public static void main(String[] args) throws Exception { 
        File jpegFile = new File("E:/pic/LOGO.jpg"); 
        Metadata metadata = JpegMetadataReader.readMetadata(jpegFile); 
        Directory exif = metadata.getDirectory(ExifDirectory.class); 
        Iterator tags = exif.getTagIterator(); 
        // print color space 
        if(exif.containsTag(ExifDirectory.TAG_COLOR_SPACE)){ 
            System.out.println("color space = " +  exif.getDescription(ExifDirectory.TAG_COLOR_SPACE)); 
        } 
        //print all exif metadata 
        while (tags.hasNext()) { 
            Tag tag = (Tag)tags.next(); 
            System.out.println(tag.getTagType() + "====>" +tag); 
        } 
    } 
}

记下来做个备忘。

Tags - java , jpeg , exif ]]> https://www.heckjj.com/java-read-jpeg-exif/#blogcomment <![CDATA[[评论] Java读取JPEG文件的exif信息]]> <user@domain.com> Thu, 01 Jan 1970 00:00:00 +0000 https://www.heckjj.com/java-read-jpeg-exif/#blogcomment