OkhttpのPostリクエストパラメータをInterceptorで変更
26062 ワード
に注意
マスターブックのokhttpとrxJavaに基づいて、このブログは新版のokhttpとrxJava、retrofitに適していない可能性があります.
Androidはrxjava+retrofit+okhttpを使用する場合、リクエストパラメータを再処理する必要がある場合があります.すべてのインタフェースには、デフォルトでsign、timestamp 2パラメータが必要です.sign:パラメータ名+パラメータ値接合の後、base 64符号化を行い、md 5暗号化(timestampを加え、signを加えない)パラメータ名の並べ替えルールasciiコード順に並べ替えtimestamp:(タイムスタンプ、秒級)備考:パラメータ名とパラメータ値をパラメータ名のascii順に並べ替える
私の処理方法は次のとおりです.
1.SignInterceptorクラス実装Interceptorの定義
import android.util.Log;
import java.io.IOException;
import java.util.Iterator;
import java.util.TreeMap;
import okhttp3.HttpUrl;
import okhttp3.Interceptor;
import okhttp3.Request;
import okhttp3.Response;
import qgcp.com.get.util.MD5;
/**
* Created 16/12/7 15:28.
*/
public class SignInterceptor implements Interceptor {
public SignInterceptor() {}
@Override
public Response intercept(Chain chain) throws IOException {
Request request = chain.request();
String timestamp = Long.toString(System.currentTimeMillis() / 1000);
// timestamp
String url = request.url().toString() + "×tamp=" + timestamp;
//
String[] parts = url.split("\\?");
//TreeMap key
TreeMap<String, String> param_map = new TreeMap<String, String>();
//
String[] param_pairs = parts[1].split("&");
for (String pair : param_pairs) {
String[] param = pair.split("=");
if (param.length != 2) {
// value
continue;
}
param_map.put(param[0], param[1]);
}
StringBuilder sign = new StringBuilder();
Iterator it = param_map.keySet().iterator();
//
while (it.hasNext()) {
String key = it.next().toString();
String value = param_map.get(key).toString();
sign.append(key + value);
}
//Base64
String sign_s = android.util.Base64.encodeToString(sign.toString().getBytes(), android.util.Base64.NO_WRAP);
//Md5
sign_s = MD5.GetMD5Code(sign_s);
// url
HttpUrl.Builder httpUrlBuilder = request.url().newBuilder();
//
httpUrlBuilder.addQueryParameter("sign", sign_s);
httpUrlBuilder.addQueryParameter("timestamp", timestamp);
Request.Builder requestBuilder = request.newBuilder();
requestBuilder.url(httpUrlBuilder.build());
request = requestBuilder.build();
return chain.proceed(request);
}
}
2.okhttpにインポート
SignInterceptor signInterceptor=new SignInterceptor();
// log
HttpLoggingInterceptor loggingInterceptor = new HttpLoggingInterceptor();
loggingInterceptor.setLevel(HttpLoggingInterceptor.Level.BODY);
builder.addInterceptor(loggingInterceptor)
.addInterceptor(signInterceptor)
.retryOnConnectionFailure(false)
.addNetworkInterceptor(loggingInterceptor);
md 5ツールクラスとバックエンドは一致すればよい
import java.security.MessageDigest;
import java.security.NoSuchAlgorithmException;
/**
* MD5
*/
public class MD5 {
private final static String[] strDigits = { "0", "1", "2", "3", "4", "5",
"6", "7", "8", "9", "a", "b", "c", "d", "e", "f" };
public MD5() {
}
private static String byteToArrayString(byte bByte) {
int iRet = bByte;
// System.out.println("iRet="+iRet);
if (iRet < 0) {
iRet += 256;
}
int iD1 = iRet / 16;
int iD2 = iRet % 16;
return strDigits[iD1] + strDigits[iD2];
}
private static String byteToNum(byte bByte) {
int iRet = bByte;
System.out.println("iRet1=" + iRet);
if (iRet < 0) {
iRet += 256;
}
return String.valueOf(iRet);
}
private static String byteToString(byte[] bByte) {
StringBuffer sBuffer = new StringBuffer();
for (int i = 0; i < bByte.length; i++) {
sBuffer.append(byteToArrayString(bByte[i]));
}
return sBuffer.toString();
}
public static String GetMD5Code(String strObj) {
String resultString = null;
try {
resultString = new String(strObj);
MessageDigest md = MessageDigest.getInstance("MD5");
resultString = byteToString(md.digest(strObj.getBytes()));
} catch (NoSuchAlgorithmException ex) {
ex.printStackTrace();
}
return resultString;
}
}
終了------