调用百度地图根据经纬度截图并保存

download("http://api.map.baidu.com/staticimage?width=400&height=300&center="+project.getLongitude()+","+project.getLatitude()+"&zoom=11", businessId+".jpg",request.getSession().getServletContext().getRealPath("")+"/userfiles/assess/"+businessId+"/doc");

public static void download(String urlString, String filename,String savePath) throws Exception {
// 构造URL
URL url = new URL(urlString);
// 打开连接
URLConnection con = url.openConnection();
//设置请求超时为5s
con.setConnectTimeout(5*1000);
// 输入流
InputStream is = con.getInputStream();

// 1K的数据缓冲
byte[] bs = new byte[1024];
// 读取到的数据长度
int len;
// 输出的文件流
File sf=new File(savePath);
if(!sf.exists()){
sf.mkdirs();
}
OutputStream os = new FileOutputStream(sf.getPath()+"/"+filename);
// 开始读取
while ((len = is.read(bs)) != -1) {
os.write(bs, 0, len);
}
// 完毕，关闭所有链接
os.close();
is.close();
}