上传代码

src/main/java/com/nis/util/ImageGeo.java

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+package com.nis.util;
+
+import com.drew.metadata.*;
+import com.drew.metadata.exif.*;
+import com.drew.imaging.jpeg.*;
+import com.drew.lang.*;
+import java.io.*;
+
+public class ImageGeo {
+	public double lat = 0.0;
+	public double lon = 0.0;
+	public double alt = 0.0;
+	public boolean error = false;
+
+	public ImageGeo(String filename) {
+		try {
+			error = false;
+			File jpegFile = new File(filename);
+			Metadata metadata = JpegMetadataReader.readMetadata(jpegFile);
+
+			GpsDirectory gpsdir = (GpsDirectory) metadata
+					.getDirectory(GpsDirectory.class);
+			Rational latpart[] = gpsdir
+					.getRationalArray(GpsDirectory.TAG_GPS_LATITUDE);
+			Rational lonpart[] = gpsdir
+					.getRationalArray(GpsDirectory.TAG_GPS_LONGITUDE);
+			String northing = gpsdir
+					.getString(GpsDirectory.TAG_GPS_LATITUDE_REF);
+			String easting = gpsdir
+					.getString(GpsDirectory.TAG_GPS_LONGITUDE_REF);
+
+			try {
+				alt = gpsdir.getDouble(GpsDirectory.TAG_GPS_ALTITUDE);
+			} catch (Exception ex) {
+			}
+
+			double latsign = 1.0d;
+			if (northing.equalsIgnoreCase("S"))
+				latsign = -1.0d;
+			double lonsign = 1.0d;
+			if (easting.equalsIgnoreCase("W"))
+				lonsign = -1.0d;
+			lat = (Math.abs(latpart[0].doubleValue())
+					+ latpart[1].doubleValue() / 60.0d + latpart[2]
+					.doubleValue() / 3600.0d) * latsign;
+			lon = (Math.abs(lonpart[0].doubleValue())
+					+ lonpart[1].doubleValue() / 60.0d + lonpart[2]
+					.doubleValue() / 3600.0d) * lonsign;
+
+			if (Double.isNaN(lat) || Double.isNaN(lon))
+				error = true;
+		} catch (Exception ex) {
+			error = true;
+		}
+		System.out.println(filename + ": (" + lat + ", " + lon + ")");
+	}
+	
+	public static void main(String[] args) {
+		ImageGeo imageGeo = new ImageGeo(ImageGeo.class.getResource("IMAG0068.jpg").getFile());
+		System.out.println(imageGeo.lon+","+imageGeo.lat);
+	}
+
+}