版权声明：本文为博主原创文章，未经博主允许不得转载。 https://blog.csdn.net/generallizhong/article/details/79932204
很久没有写过图片上传，今天写的时候还有点生疏了，这里记录一下：
很简单的一个功能确用了大半天，主要为两部分一是：请求类，二是：界面的调用
1、这里主要是用原生方式进行写图片上传，外加文本一起进进行上传，第一部直接上代码吧！很简单应该不会存在看不懂的
private void UpFile(final TextView view) {
final String url = "http://" + HttpUtil.baseIp_ + HttpUtil.dk + "/KeyFileUpload.action";//服务器地址
new Thread(new Runnable() {
@Override
public void run() {
try {
final Map<String, Object> paramMap = new HashMap<String, Object>(); //文本数据全部添加到Map里
paramMap.put("id", "e69c119f642b4b67a8004b2760938c0b");//参数
paramMap.put("fileType", "1");//参数
final File pictureFile = new File(_path); //通过路径获取文件_path是图片地址
Log.e("LZ取出file//", pictureFile.getPath());
try {
getimgcode = UpImgFile.doPostPicture(getActivity(), pictureFile.getPath(), paramMap, pictureFile);//调用方法
} catch (Exception e) {
e.printStackTrace();
}
getActivity().runOnUiThread(new Runnable() {
@Override
public void run() {
if (getimgcode == 200) {//这里是返回值
Toast.makeText(getActivity(), "上传成功！", Toast.LENGTH_SHORT).show();
} else {
Toast.makeText(getActivity(), "上传失败！", Toast.LENGTH_SHORT).show();
}
}
});
} catch (Exception e) {
getActivity().runOnUiThread(new Runnable() {
@Override
public void run() {
Toast.makeText(getActivity(), "请检查是否已签字", Toast.LENGTH_SHORT).show();
}
});
}
}
}).start();
}这里就是调用部分，是在fragment上调用，
第二部分为请求类
public class UpImgFile {
static String BOUNDARY = java.util.UUID.randomUUID().toString();
static String PREFIX = "--", LINEND = "\r\n";
static String MULTIPART_FROM_DATA = "multipart/form-data";
static String CHARSET = "UTF-8";
/* 上传文件至Server的方法 */
/**
* android上传文件到服务器
*
* @param file 需要上传的文件
* @param RequestURL 请求的rul
* @return 返回响应的内容
*/
static final String _http = "http://" + HttpUtil.baseIp_ + HttpUtil.dk + "/KeyFileUpload.action";//这里是服务器的地址
public static int doPostPicture(Context context, String Strpath, Map<String, Object> paramMap, File pictureFile)
throws Exception {
URL url = new URL(_http);
HttpURLConnection conn = (HttpURLConnection) url.openConnection();
conn.setDoInput(true);// 允许输入
conn.setDoOutput(true);// 允许输出
conn.setUseCaches(false);
conn.setReadTimeout(10 * 10000); // 缓存的最长时间
conn.setRequestMethod("POST");
conn.setRequestProperty("Charset", "UTF-8");
conn.setRequestProperty("Connection", "Keep-Alive");
conn.setRequestProperty("Content-Type", MULTIPART_FROM_DATA + ";boundary=" + BOUNDARY);
DataOutputStream os = new DataOutputStream(conn.getOutputStream());
StringBuilder sb = new StringBuilder(); //用StringBuilder拼接报文，用于上传图片数据
sb.append(PREFIX);
sb.append(BOUNDARY);
sb.append(LINEND);
Log.e("LZ图片路径", pictureFile.getName() + "");
sb.append("Content-Disposition: form-data; name=\"picture\"; filename=\"" + pictureFile.getName() + "\"" + LINEND);
sb.append("Content-Type: image/jpg; charset=" + CHARSET + LINEND);
sb.append(LINEND);
os.write(sb.toString().getBytes());
Log.e("Lz截取路径--2", pictureFile.getPath().substring(5));
InputStream is = new FileInputStream(pictureFile.getPath().substring(5));
byte[] buffer = new byte[1024];
int len = 0;
while ((len = is.read(buffer)) != -1) {
os.write(buffer, 0, len); //写入图片数据
}
is.close();
os.write(LINEND.getBytes());
StringBuilder text = new StringBuilder();
for (Map.Entry<String, Object> entry : paramMap.entrySet()) { //在for循环中拼接报文，上传文本数据
text.append("--");
text.append(BOUNDARY);
text.append("\r\n");
text.append("Content-Disposition: form-data; name=\"" + entry.getKey() + "\"\r\n\r\n");
text.append(entry.getValue());
text.append("\r\n");
}
os.write(text.toString().getBytes("utf-8")); //写入文本数据
// 请求结束标志
byte[] end_data = (PREFIX + BOUNDARY + PREFIX + LINEND).getBytes();
os.write(end_data);
os.flush();
os.close();
// 得到响应码
int res = conn.getResponseCode();
Log.e("LZ--返回的code:", res + "");
Log.e("Lz", "msg" + conn.getResponseMessage());
conn.disconnect();
return res;
}
}