给新氧做的，测试没有问题。文字用个map，图片用个map，域名对应map的键名。
package utils;
import java.io.BufferedReader;
import java.io.DataInputStream;
import java.io.DataOutputStream;
import java.io.File;
import java.io.FileInputStream;
import java.io.InputStreamReader;
import java.io.OutputStream;
import java.net.HttpURLConnection;
import java.net.URL;
import java.util.HashMap;
import java.util.Iterator;
import java.util.Map;
import javax.activation.MimetypesFileTypeMap;
import com.alibaba.fastjson.JSON;
/**
* java通过模拟post方式提交表单实现图片上传功能实例
* 其他文件类型可以传入 contentType 实现
*/
@SuppressWarnings("unused")
public class PostFileImg {
public static void main(String[] args) {
String picpath="D:/sy.jpg";
MyUploadImage(picpath);
}
private static String MyUploadImage(String picPath){
String url = "https://b.soyoung.com/saasV2/sendMessage";
String reader = picPath;
File file=new File(picPath);
/*模拟文本域*/
Map<String, String> textMap = new HashMap<String, String>();
textMap.put("type", "2");
textMap.put("fid", "14949849");
textMap.put("host_uid","12730430");
textMap.put("RichText_content", "你好");
textMap.put("saas_token", "115cf30801dbecd79ef3724aefb12472");
textMap.put("saas_timestamp", "1665049992");
textMap.put("saas_sign", "aa20120b72540372683ab5c5d9a5060f");
//设置file的name，路径，模拟上传文件
Map<String, String> fileMap = new HashMap<String, String>();
System.out.println("文件路径:"+reader);
fileMap.put("imgFile", reader);
String contentType = "";//image/png
String ret = formUpload(url, textMap, fileMap,contentType);
return ret;
}
/**
* 上传图片
* @param urlStr
* @param textMap
* @param fileMap
* @param contentType 没有传入文件类型默认采用application/octet-stream
* contentType非空采用filename匹配默认的图片类型
* @return 返回response数据
*/
@SuppressWarnings("rawtypes")
private static String formUpload(String urlStr, Map<String, String> textMap,
Map<String, String> fileMap,String contentType) {
String res = "";
HttpURLConnection conn = null;
// boundary就是request头和上传文件内容的分隔符
String BOUNDARY = "------WebKitFormBoundaryogf0mTCQMuKITpNH";
try {
URL url = new URL(urlStr);
conn = (HttpURLConnection) url.openConnection();
conn.setConnectTimeout(5000);
conn.setReadTimeout(30000);
conn.setDoOutput(true);
conn.setDoInput(true);
conn.setUseCaches(false);
conn.setRequestMethod("POST");
conn.setRequestProperty("Accept", "application/json, text/plain, */*");
conn.setRequestProperty("Accept-Language", "zh-CN,zh;q=0.9");
conn.setRequestProperty("Connection", "keep-alive");
conn.setRequestProperty("Content-Length", "316488");
conn.setRequestProperty("Content-Type", "multipart/form-data; boundary="+BOUNDARY);
conn.setRequestProperty("Cookie", Tools.readFile("txt/cookie.dll"));
conn.setRequestProperty("Host", "b.soyoung.com");
conn.setRequestProperty("Origin", "https://b.soyoung.com");
conn.setRequestProperty("Referer", "https://b.soyoung.com/wb/ims/msg?fid=26885341&host_uid=12730430");
conn.setRequestProperty("User-Agent", "Mozilla/5.0 (Windows NT 6.1; WOW64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/63.0.3239.132 Safari/537.36");
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);
}
System.out.println(strBuf.toString());
out.write(strBuf.toString().getBytes());
}
// file
if (fileMap != null) {
Iterator iter = fileMap.entrySet().iterator();
while (iter.hasNext()) {
Map.Entry entry = (Map.Entry) iter.next();
String inputName = (String) entry.getKey();
String inputValue = (String) entry.getValue();
System.out.println("图片路径："+inputValue);
if (inputValue == null) {
continue;
}
File file = new File(inputValue);
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=\""
+ inputName + "\";filename=\"" + filename
+ "\"\r\n");
strBuf.append("Content-Type:" + contentType + "\r\n\r\n");
System.out.println("Content-Disposition:form-data;name=\""
+ inputName + "\";filename=\"" + filename
+ "\"\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) {
e.printStackTrace();
} finally {
if (conn != null) {
conn.disconnect();
conn = null;
}
}
System.out.println(res);
return res;
}
}