JAvaシミュレーション複雑なフォームpostリクエスト
JAvaシミュレーション複雑フォームpostリクエストファイルアップロードをサポート
FormParamパッケージクラス:
/**
* ,
* @param formParam
* @return
* @throws Exception
*/
public static String postWithForm(FormParam formParam) throws Exception {
String url = formParam.getUrl();
String charset = "UTF-8";
String boundary = Long.toHexString(System.currentTimeMillis()); // Just generate some unique random value.
String CRLF = "\r
"; // Line separator required by multipart/form-data.
URLConnection connection = new URL(url).openConnection();
connection.setDoOutput(true);
connection.setRequestProperty("Content-Type", "multipart/form-data; boundary=" + boundary);
try (
OutputStream output = connection.getOutputStream();
PrintWriter writer = new PrintWriter(new OutputStreamWriter(output, charset), true);
) {
// make body param
Map<String, String> bodyParam = formParam.getBodyParam();
if (null != bodyParam) {
for (String p : bodyParam.keySet()) {
writer.append("--" + boundary).append(CRLF);
writer.append("Content-Disposition: form-data; name=\"" + p + "\"").append(CRLF);
writer.append("Content-Type: text/plain; charset=" + charset).append(CRLF);
writer.append(CRLF).append(bodyParam.get(p)).append(CRLF).flush();
}
}
// Send file.
Map<String, File> fileParam = formParam.getFileParam();
if (null != fileParam) {
for (String fileName : fileParam.keySet()) {
writer.append("--" + boundary).append(CRLF);
writer.append("Content-Disposition: form-data; name=\"" + fileName + "\"; filename=\""
+ fileParam.get(fileName).getName() + "\"").append(CRLF);
writer.append("Content-Type: " + URLConnection.guessContentTypeFromName(fileName)).append(CRLF);
writer.append("Content-Transfer-Encoding: binary").append(CRLF);
writer.append(CRLF).flush();
Files.copy(fileParam.get(fileName).toPath(), output);
output.flush(); // Important before continuing with writer!
writer.append(CRLF).flush(); // CRLF is important! It indicates end of boundary.
}
}
// End of multipart/form-data.
writer.append("--" + boundary + "--").append(CRLF).flush();
}
HttpURLConnection conn = (HttpURLConnection) connection;
ByteArrayOutputStream bout = new ByteArrayOutputStream();
int len;
byte[] buffer = new byte[1024];
while ((len = conn.getInputStream().read(buffer)) != -1) {
bout.write(buffer, 0, len);
}
String result = new String(bout.toByteArray(), "utf-8");
return result;
}
FormParamパッケージクラス:
package net.riking.core.utils;
import java.io.File;
import java.util.Map;
public class FormParam {
private String url;
// private String auth;
// /**
// * http
// */
// private Map headerParam;
/**
*
*/
private Map<String, String> bodyParam;
/**
* filename file
*/
private Map<String, File> fileParam;
public String getUrl() {
return url;
}
public void setUrl(String url) {
this.url = url;
}
// public String getAuth() {
// return auth;
// }
//
// public void setAuth(String auth) {
// this.auth = auth;
// }
//
// public Map getHeaderParam() {
// return headerParam;
// }
//
// public void setHeaderParam(Map headerParam) {
// this.headerParam = headerParam;
// }
public Map<String, String> getBodyParam() {
return bodyParam;
}
public void setBodyParam(Map<String, String> bodyParam) {
this.bodyParam = bodyParam;
}
public Map<String, File> getFileParam() {
return fileParam;
}
public void setFileParam(Map<String, File> fileParam) {
this.fileParam = fileParam;
}
}