我想知道如何在我的http请求中调整标准用户代理。我正在使用Volley库，我知道怎么做
我不知道的是：
这是可能的，还是我必须更换字符串？
谢谢
为了通过齐射发送的所有请求全局设置用户代理，这是我的解决方案：
在初始化排球请求队列时，请使用以下代码段，而不是使用方便的方法Volley.newRequestQueue(Context);：
private RequestQueue makeRequestQueue(Context context) {
DiskBasedCache cache = new DiskBasedCache(new File(context.getCacheDir(), DEFAULT_CACHE_DIR), DISK_CACHE_SIZE);
BasicNetwork network = new BasicNetwork(new MyHurlStack());
RequestQueue queue = new RequestQueue(cache, network);
queue.start();
return queue;
}
public static class MyHurlStack extends HurlStack {
@Override
public HttpResponse executeRequest(Request<?> request, Map<String, String> additionalHeaders) throws IOException, AuthFailureError {
if (additionalHeaders == null || Collections.emptyMap().equals(additionalHeaders) {
additionalHeaders = new HashMap<>();
}
additionalHeaders.put("User-Agent", "test_user_agent_in_volley");
return super.executeRequest(request, additionalHeaders);
}
}
此解决方案假设您的目标是api级别> = 9，因此我们使用HurlStack
这样做的原因是因为在HurlStack.executeRequest(Request<?> request, Map<String, String> additionalHeaders)方法中，您添加到additionalHeaders的内容稍后会被添加到HttpUrlConnection请求属性中，如connection.addRequestProperty(headerName, map.get(headerName));中所示
是的，Build.FINGERPRINT包含您需要的所有信息，https://developer.android.com/reference/android/os/Build.html
要获取各个部分，请使用单个常量字符串，
有关OS版本信息的详细信息，请使用Build.VERSION
import android.util.Log;
import android.os.Bundle;
import android.os.Build;
public class MainActivity {
@Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
Log.i("Build","BOARD = "+Build.BOARD);
Log.i("Build","BOOTLOADER = "+Build.BOOTLOADER);
Log.i("Build","BRAND = "+Build.BRAND);
Log.i("Build","CPU_ABI = "+Build.CPU_ABI);
Log.i("Build","CPU_ABI2 = "+Build.CPU_ABI2);
Log.i("Build","DEVICE = "+Build.DEVICE);
Log.i("Build","DISPLAY = "+Build.DISPLAY);
Log.i("Build","FINGERPRINT = "+Build.FINGERPRINT);
Log.i("Build","HARDWARE = "+Build.HARDWARE);
Log.i("Build","HOST = "+Build.HOST);
Log.i("Build","ID = "+Build.ID);
Log.i("Build","MANUFACTURER = "+Build.MANUFACTURER);
Log.i("Build","MODEL = "+Build.MODEL);
Log.i("Build","PRODUCT = "+Build.PRODUCT);
Log.i("Build","RADIO = "+Build.RADIO);
Log.i("Build","SERIAL = "+Build.SERIAL);
Log.i("Build","TAGS = "+Build.TAGS);
Log.i("Build","TYPE = "+Build.TYPE);
Log.i("Build","USER = "+Build.USER);
Log.i("Build","BASE_OS = "+Build.VERSION.BASE_OS);
Log.i("Build","CODENAME = "+ Build.VERSION.CODENAME);
Log.i("Build","INCREMENTAL = "+ Build.VERSION.INCREMENTAL);
Log.i("Build","RELEASE = "+ Build.VERSION.RELEASE);
Log.i("Build","SDK = "+ Build.VERSION.SDK);
Log.i("Build","SECURITY_PATCH = "+ Build.VERSION.SECURITY_PATCH);
Log.i("$TAG#",Build.FINGERPRINT);
}
}
System.getProperty("http.agent")返回的内容如下：
Dalvik/2.1.0 (Linux; U; Android 9; Android SDK built for x86 Build/PSR1.180720.075)
使用android.os.Build和java.lang.System.getProperty()的组合可以构建其中的所有部分。
这是在模拟器上运行的android.os.Build中的一个示例：
Build.BOARD = "goldfish_x86"
Build.BOOTLOADER = "unknown"
Build.BRAND = "google"
Build.DEVICE = "generic_x86"
Build.DISPLAY = "sdk_gphone_x86-userdebug 9 PSR1.180720.075 5124027 dev-keys"
Build.FINGERPRINT = "google/sdk_gphone_x86/generic_x86:9/PSR1.180720.075/5124027:userdebug/dev-keys"
Build.HARDWARE = "ranchu"
Build.HOST = "abfarm904"
Build.ID = "PSR1.180720.075"
Build.MANUFACTURER = "Google"
Build.MODEL = "Android SDK built for x86"
Build.PRODUCT = "sdk_gphone_x86"
Build.SUPPORTED_32_BIT_ABIS = {"x86"}
Build.SUPPORTED_64_BIT_ABIS = {}
Build.SUPPORTED_ABIS = {"x86"}
Build.TAGS = "dev-keys"
Build.TIME = 1541887073000
Build.TYPE = "userdebug"
Build.USER = "android-build"
Build.UNKNOWN = "unknown"
Build.VERSION.BASE_OS = ""
Build.VERSION.CODENAME = "REL"
Build.VERSION.INCREMENTAL = "5124027"
Build.VERSION.PREVIEW_SDK_INT = 0
Build.VERSION.RELEASE = "9"
Build.VERSION.SDK_INT = 28
Build.VERSION.SECURITY_PATCH = "2018-09-05"
根据Google的文档，这些属性始终由Dalvik VM提供：
file.separator = /
java.class.path = .
java.class.version = 50.0
java.compiler = Empty
java.ext.dirs = Empty
java.home = /system
java.io.tmpdir = /sdcard
java.library.path = /vendor/lib:/system/lib
java.vendor = The Android Project
java.vendor.url = http://www.android.com/
java.version = 0
java.specification.version = 0.9
java.specification.vendor = The Android Project
java.specification.name = Dalvik Core Library
java.vm.version = 1.2.0
java.vm.vendor = The Android Project
java.vm.name = Dalvik
java.vm.specification.version = 0.9
java.vm.specification.vendor = The Android Project
java.vm.specification.name = Dalvik Virtual Machine Specification
line.separator = \n
os.arch = armv7l
os.name = Linux
os.version = 2.6.32.9-g103d848
path.separator = :
user.dir = /
user.home = Empty
user.name = Empty
因此，默认用户代理似乎由以下内容组成：
System.getProperty("java.vm.name") // Dalvik
System.getProperty("java.vm.version") // 2.1.0
System.getProperty("os.name") // Linux
"U" // not sure where to get this
"Android" // or this, probably safe to hard code though
Build.VERSION.RELEASE // 9
Build.MODEL // Android SDK built for x86
Build.ID // PSR1.180720.075