我正在尝试访问我大学的网站并分析必要的信息(例如时间表等)。我在reqres.in上检查了工作,一切正常,但是在我的网站上没有答案(称为onFailure)。我用Python编写了相同的代码,一切正常,并且网站启动了。也许我缺少一些东西,我寻求帮助。
有效的Python代码
import requests
import re
s = requests.Session()
s.get("https://lk.sut.ru/cabinet/")
def login_bonch(login, password):
data = {'users': login,
'parole': password}
r = s.post("https://lk.sut.ru/cabinet/lib/autentificationok.php", data = data)
return r.text // Function returns 1
Android Studio中的代码无效
public class MainActivity extends AppCompatActivity {
@Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_main);
init();
OkHttpClient client = new OkHttpClient();
RequestBody formBody = new FormBody.Builder()
.add("users", "[email protected]")
.add("parole", "password123")
.build();
Request request = new Request.Builder()
.url("https://lk.sut.ru/cabinet/lib/autentificationok.php")
.post(formBody)
.build();
client.newCall(request).enqueue(new Callback() {
@Override
public void onFailure(@NotNull Call call, @NotNull IOException e) {
Log.d("SendLog", "Error");
e.printStackTrace();
}
@Override
public void onResponse(@NotNull Call call, @NotNull Response response) throws IOException {
Log.d("SendLog", " " + response.body().string());
}
});
}
我希望现在附上正确的(堆栈跟踪)
2020-06-11 03:47:46.560 2287-2315/com.foxartstd.lkbonchapp W/System.err: java.net.ProtocolException: Too many follow-up requests: 21
2020-06-11 03:47:46.560 2287-2315/com.foxartstd.lkbonchapp W/System.err: at okhttp3.internal.http.RetryAndFollowUpInterceptor.intercept(RetryAndFollowUpInterceptor.kt:127)
2020-06-11 03:47:46.560 2287-2315/com.foxartstd.lkbonchapp W/System.err: at okhttp3.internal.http.RealInterceptorChain.proceed(RealInterceptorChain.kt:100)
2020-06-11 03:47:46.560 2287-2315/com.foxartstd.lkbonchapp W/System.err: at okhttp3.internal.connection.RealCall.getResponseWithInterceptorChain$okhttp(RealCall.kt:197)
2020-06-11 03:47:46.560 2287-2315/com.foxartstd.lkbonchapp W/System.err: at okhttp3.internal.connection.RealCall$AsyncCall.run(RealCall.kt:502)
2020-06-11 03:47:46.560 2287-2315/com.foxartstd.lkbonchapp W/System.err: at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1133)
2020-06-11 03:47:46.561 2287-2315/com.foxartstd.lkbonchapp W/System.err: at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:607)
2020-06-11 03:47:46.561 2287-2315/com.foxartstd.lkbonchapp W/System.err: at java.lang.Thread.run(Thread.java:761)
我不明白如何将代码从Python传输到android应用程序。我知道也许我错过了网络会话的开始,但是我不知道如何用Java实现。
答案开始出现,但我无法显示。添加了这些行
ClearableCookieJar cookieJar =
new PersistentCookieJar(new SetCookieCache(), new SharedPrefsCookiePersistor(getApplicationContext()));
OkHttpClient client = new OkHttpClient.Builder()
.cookieJar(cookieJar)
.followRedirects(FALSE)
.followSslRedirects(FALSE)
.build();
我试图得到这样的答案,而我只得到Ok]
client.newCall(request).enqueue(new Callback() {
@Override
public void onFailure(@NotNull Call call, @NotNull IOException e) {
Log.d("SendLog", "Error");
e.printStackTrace();
}
@Override
public void onResponse(@NotNull Call call, @NotNull Response response) throws IOException {
String MyResult = response.body().string();
Log.d("SendLog", "Ok " + MyResult);
}
您应该使用RequestBody.create
而不是FormBody
RequestBody formBody = RequestBody.create("application/json; charset=utf-8", "{\"users\":\"[email protected]\",\"parole\":\"password123\"}")
Request request = new Request.Builder()
.url("https://lk.sut.ru/cabinet/lib/autentificationok.php")
.post(formBody)
.build();
我怀疑您将需要一个CookieJar来保持第一次呼叫时的会话设置
看https://square.github.io/okhttp/4.x/okhttp/okhttp3/-cookie-jar/
https://github.com/franmontiel/PersistentCookieJar
ClearableCookieJar cookieJar =
new PersistentCookieJar(new SetCookieCache(), new SharedPrefsCookiePersistor(context));
OkHttpClient okHttpClient = new OkHttpClient.Builder()
.cookieJar(cookieJar)
.build();
但是您的代码示例似乎并不完整。
添加这些行解决了我的问题
ClearableCookieJar cookieJar =
new PersistentCookieJar(new SetCookieCache(), new SharedPrefsCookiePersistor(getApplicationContext()));
OkHttpClient client = new OkHttpClient.Builder()
.cookieJar(cookieJar)
.followRedirects(FALSE)
.followSslRedirects(FALSE)
.build();
正是这些截止日期没有让我犯错
.followRedirects(FALSE)
.followSslRedirects(FALSE)
关于答案,这些已经是网站的问题。如果成功则返回1,否则返回1。授权仍然没有出来,但是主要问题已经解决。