base64图片解码保存图片。

src/main/java/com/ekexiu/portal/service/ImageService.java

package com.ekexiu.portal.service;
import java.awt.image.BufferedImage;
import java.io.ByteArrayInputStream;
import java.io.ByteArrayOutputStream;
import java.io.File;
import java.sql.SQLException;
import java.util.concurrent.TimeUnit;
import javax.imageio.ImageIO;
import org.jfw.apt.web.annotation.Path;
import org.jfw.apt.web.annotation.operate.Get;
import org.jfw.apt.web.annotation.operate.Post;
import org.jfw.util.exception.JfwBaseException;
import org.jfw.util.io.IoUtil;
import com.ekexiu.portal.util.Base64;
@Path("/image")
public class ImageService {
	private File tmpPath;
		this.defaultResourcePhoto = defaultResourcePhoto;
	}
	
	@Post
	@Path("/saveHead")
	public boolean saveImage(String id, String base64) throws IOException {
//		BASE64Decoder decoder = new sun.misc.BASE64Decoder();
//		byte[] bytes = decoder.decodeBuffer(base64);                  
//		ByteArrayInputStream bais = new ByteArrayInputStream(bytes);    
//		BufferedImage bi =ImageIO.read(bais);
        BufferedImage bi = Base64.getBase64(base64);
		String fileName=this.headPath+"/"+id+".gif";
        File file = new File(fileName);//可以是jpg,png,gif格式    
        ImageIO.write(bi, "jpg", file);//不管输出什么格式图片，此处不需改动   
		return true;
	}
	
	/**
	 * 判断是否有专家头像
	 * @param id 专家ID

src/main/java/com/ekexiu/portal/util/Base64.java

package com.ekexiu.portal.util;
import java.awt.image.BufferedImage;
import java.io.ByteArrayInputStream;
import javax.imageio.ImageIO;
import sun.misc.BASE64Decoder;
@SuppressWarnings("restriction")
public class Base64 {
	public static BufferedImage getBase64(String base64) {
		BASE64Decoder decoder = new sun.misc.BASE64Decoder();
		try { 
			byte[] bytes = decoder.decodeBuffer(base64);                  
	        ByteArrayInputStream bais = new ByteArrayInputStream(bytes);    
	        BufferedImage bi =ImageIO.read(bais);
			return bi; 
		} catch (Exception e) { 
			return null; 
		} 
	}
}