实现多图片上传加上多参数上传
标签：war awt new 方法 shm position nal static key
---- 昨天的上传到接口没有考虑到图片的上传，现在改正以下喔，话不多说上代码....
@SuppressWarnings("rawtypes")
public static String formUpload(String urlStr, Map textMap,
String [] fileMap,String contentType) {
String res = "";
sun.net.www.protocol.http.HttpURLConnection conn = null;
// boundary就是request头和上传文件内容的分隔符
String BOUNDARY = "---------------------------123821742118716";
try {
URL url = new URL(urlStr);
conn = (sun.net.www.protocol.http.HttpURLConnection) url.openConnection();
conn.setConnectTimeout(5000);
conn.setReadTimeout(30000);
conn.setDoOutput(true);
conn.setDoInput(true);
conn.setUseCaches(false);
conn.setRequestMethod("POST");
conn.setRequestProperty("Connection", "Keep-Alive");
conn.setRequestProperty("User-Agent",
"Mozilla/5.0 (Windows; U; Windows NT 6.1; zh-CN; rv:1.9.2.6)");
conn.setRequestProperty("Content-Type",
"multipart/form-data; boundary=" + BOUNDARY);
OutputStream out = new DataOutputStream(conn.getOutputStream());
// text
if (textMap != null) {
StringBuffer strBuf = new StringBuffer();
Iterator iter = textMap.entrySet().iterator();
while (iter.hasNext()) {
Map.Entry entry = (Map.Entry) iter.next();
String inputName = (String) entry.getKey();
String inputValue = (String) entry.getValue();
if (inputValue == null) {
continue;
}
strBuf.append("\r\n").append("--").append(BOUNDARY)
.append("\r\n");
strBuf.append("Content-Disposition: form-data; name=\""
+ inputName + "\"\r\n\r\n");
strBuf.append(inputValue);
}
out.write(strBuf.toString().getBytes());
}
// file
if (fileMap != null) {
for (int i = 0; i ) {
File file = new File(fileMap[i]);
String filename = file.getName();
//没有传入文件类型，同时根据文件获取不到类型，默认采用application/octet-stream
contentType = new MimetypesFileTypeMap().getContentType(file);
//contentType非空采用filename匹配默认的图片类型
if(!"".equals(contentType)){
if (filename.endsWith(".png")) {
contentType = "image/png";
}else if (filename.endsWith(".jpg") || filename.endsWith(".jpeg") || filename.endsWith(".jpe")) {
contentType = "image/jpeg";
}else if (filename.endsWith(".gif")) {
contentType = "image/gif";
}else if (filename.endsWith(".ico")) {
contentType = "image/image/x-icon";
}
}
if (contentType == null || "".equals(contentType)) {
contentType = "application/octet-stream";
}
StringBuffer strBuf = new StringBuffer();
strBuf.append("\r\n").append("--").append(BOUNDARY)
.append("\r\n");
strBuf.append("Content-Disposition: form-data; name=\""
+ "pictures" + "\"; filename=\"" + filename
+ "\"\r\n");
strBuf.append("Content-Type:" + contentType + "\r\n\r\n");
out.write(strBuf.toString().getBytes());
DataInputStream in = new DataInputStream(
new FileInputStream(file));
int bytes = 0;
byte[] bufferOut = new byte[1024];
while ((bytes = in.read(bufferOut)) != -1) {
out.write(bufferOut, 0, bytes);
}
in.close();
}
}
byte[] endData = ("\r\n--" + BOUNDARY + "--\r\n").getBytes();
out.write(endData);
out.flush();
out.close();
// 读取返回数据
StringBuffer strBuf = new StringBuffer();
BufferedReader reader = new BufferedReader(new InputStreamReader(
conn.getInputStream()));
String line = null;
while ((line = reader.readLine()) != null) {
strBuf.append(line).append("\n");
}
res = strBuf.toString();
reader.close();
reader = null;
} catch (Exception e) {
System.out.println("发送POST请求出错。" + urlStr);
e.printStackTrace();
} finally {
if (conn != null) {
conn.disconnect();
conn = null;
}
}
return res;
}
---- 举个应用下例子喔~~
public static void main(String[] args) throws Exception {
String uri ="接口....";
Map map = new HashMap();
map.put("key", "测试单号");
map.put("title", "测试任务");
//当前时间
map.put("createTime", TimeUtils.currentTime());
//当前时间往后延长num天数
map.put("limitTime", TimeUtils.plusDay(5));
map.put("reachId", "12568");
//调用百度地图api获取到的经纬度，为了方便测试直接传了
map.put("point", "POINT(11.11111 12.22222)");
map.put("desc", "测试任务");
map.put("content", "测试内容");
String[] file ={"F:\\xx\\141f74027edd0462867bfad0cb530e45.jpg","F:\\xx\\50097c4f7e180741919337ba1244ceb6.jpg","F:\\xx\\tfa.jpg"};
//上传的图片...
String contentType="image/jpg";
String s1 = formUpload(uri, map, file,contentType);
System.out.println(s1);
}
ps：该方法是我本地数据测试成功的明天再具体测试下，发现问题会修改的，如果各位打来发现有啥问题可以告诉我下谢谢啦~~~
同时上面的方法还可以优化~比如boundary= ----可以优化为自定生成的uuid（String boundary = UUID.randomUUID().toString()）
参考连接：https://blog.csdn.net/Icywind1/article/details/85628099
最后写的拉闸也别喷我哈QVQ
实现多图片上传加上多参数上传
标签：war awt new 方法 shm position nal static key
原文地址：https://www.cnblogs.com/Lingzsj/p/13155289.html
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