高手请进

[ch_984326013]

怎么通过Java获取本地图片，这里不能用数据库！方法越多越好，最好能给个实例！呵呵

[goodtime]

通过文件系统呗

[cyl713]

import java.io.File;
import java.io.FileInputStream;
import java.io.FileOutputStream;
import java.io.InputStream;

public class Test {
final String pic_path = "D:/aaaa.jpg";
final String out_path = "C:/123.jpg";

public static void main(String[] args) {
new Test().getPic();
}

public void getPic() {
File file = new File(pic_path);
try {
byte[] b = new byte[1024];
FileInputStream finput = new FileInputStream(file);
FileOutputStream fout = new FileOutputStream(out_path);

int k;
while ((k = finput.read(b)) != -1) {
fout.write(b, 0, k);
}

} catch (Exception e) {
e.printStackTrace();
}
}

}

[scrack]

文件操作

[ch_984326013]

[Quote=引用楼主 ch_984326013 的回复:]
怎么通过Java获取本地图片，这里不能用数据库！方法越多越好，最好能给个实例！呵呵
[/Quote]
能具体点么？用file通过路径获取？但是能不能不同过绝对路径获取啊！

[康派尔]

这是我给你的一个例子，这个例子测试通过，它可以读取以个TXT文件并转化为一个二维数组，你把代码改一下就可以用。

private double[][] loadTextFile(String filepath) throws IOException {
		InputStream stream = new FileInputStream(filepath);
		InputStreamReader reader = new InputStreamReader(stream);
		BufferedReader breader = new BufferedReader(reader);
		double[][] result = new double[getFileRows(filepath)][2];
		String line = breader.readLine();
		String[] mid = new String[] {};
		int index = 0;
		while (line != null) {
			if (line.startsWith("X")) {
				line = breader.readLine();
			} else {
				mid = line.split(",");
				result[index][0] = Double.parseDouble(mid[0]);
				result[index][1] = Double.parseDouble(mid[1]);
				index++;
				line = breader.readLine();
			}

		}
		return result;

	}

	private int getFileRows(String filepath) throws IOException {
		int count = 0;
		File file = new File(filepath);
		BufferedReader reader = new BufferedReader(new InputStreamReader(
				new FileInputStream(file)));
		String line = reader.readLine();
		while (line != null) {
			if (!line.startsWith("X"))
				count++;
			line = reader.readLine();
		}
		reader.close();

		return count;
	}

	public enum FileType {
		text, xls
	}

[ylovep]

把文件放在工程的目录下面就可以用相对路径了。