【移動應(yīng)用開發(fā)技術(shù)】怎么在Android中利用Oss上傳圖片

【移動應(yīng)用開發(fā)技術(shù)】怎么在Android中利用Oss上傳圖片

這篇文章給大家介紹怎么在Android中利用Oss上傳圖片，內(nèi)容非常詳細(xì)，感興趣的小伙伴們可以參考借鑒，希望對大家能有所幫助。Androidstudio添加依賴dependencies

{

compile

'com.aliyun.dpa:oss-android-sdk:2.4.5'

compile

'com.squareup.okhttp3:okhttp:3.4.1'

compile

'com.squareup.okio:okio:1.9.0'

}直接引入jar包（對Androidstudio或者Eclipse都適用）1.在官網(wǎng)下載sdk包2.解壓后得到j(luò)ar包，目前包括aliyun-oss-sdk-android-x.x.x.jar、okhttp-3.x.x.jar和okio-1.x.x.jar3.將以上3個jar包導(dǎo)入libs目錄權(quán)限設(shè)置確保AndroidManifest.xml文件中已經(jīng)配置了這些權(quán)限，否則，SDK將無法正常工作。<uses-permission

android:name="android.permission.INTERNET"></uses-permission>

<uses-permission

android:name="android.permission.ACCESS_NETWORK_STATE"></uses-permission>

<uses-permission

android:name="android.permission.ACCESS_WIFI_STATE"></uses-permission>

<uses-permission

android:name="android.permission.WRITE_EXTERNAL_STORAGE"></uses-permission>混淆設(shè)置-keep

class

com.alibaba.sdk.android.oss.**

{

*;

}

-dontwarn

okio.**

-dontwarn

mons.codec.binary.**實現(xiàn)過程首先為了安全起見，采用的是STS鑒權(quán)模式，則要用到的數(shù)據(jù)都是從后臺獲得然后應(yīng)用到前臺的。1.創(chuàng)建OSSClient(自己在這里命名為OssService)OSSClient為OSS服務(wù)的Android客戶端，它為調(diào)用者提供了一系列的方法，可以用來操作，管理存儲空間（bucket）和文件（object）等。public

class

OssService

{

private

OSS

oss;

private

String

bucket;

private

picResultCallback

callback;//回調(diào)接口

private

String

path=地址(后臺告訴);

public

OssService(OSS

oss,

String

bucket,picResultCallback

callback)

{

this.oss

=

oss;

this.bucket

=

bucket;

this.callback=callback;

}

/**object字段為圖片的上傳地址（具體地址的前綴后端給，這個是拼起

*來的一個路徑）

*localFile圖片的本地地址

*mProgress

進(jìn)度條

*img

顯示圖片的控件

*type

類型

*／

public

void

asyncPutImage(String

object,

final

String

localFile,

final

ProgressBar

mProgress,

final

ImageView

img,String

type)

{

if

(object.equals(""))

{

Log.w("AsyncPutImage",

"ObjectNull");

return;

}

File

file

=

new

File(localFile);

if

(!file.exists())

{

Log.w("AsyncPutImage",

"FileNotExist");

Log.w("LocalFile",

localFile);

return;

}

//

構(gòu)造上傳請求

PutObjectRequest

put

=

new

PutObjectRequest(bucket,

object,

localFile);

put.setCallbackParam(new

HashMap<String,

String>()

{

{

put("callbackUrl",

path);

put("callbackBody",

"filename=${object}&size=${size}&id=${x:id}&action=${x:action}");

///document_detail/31989.html?spm=5176.doc31984.6.883.brskVg

}

});

HashMap<String,

String>

hashMap=new

HashMap<>();

hashMap.put("x:id",id);

hashMap.put("x:action",type);

put.setCallbackVars(hashMap);

//

異步上傳時可以設(shè)置進(jìn)度回調(diào)

put.setProgressCallback(new

OSSProgressCallback<PutObjectRequest>()

{

@Override

public

void

onProgress(PutObjectRequest

request,

long

currentSize,

long

totalSize)

{

int

progress

=

(int)

(100

*

currentSize

/

totalSize);

mProgress.setProgress(progress);

}

});

OSSAsyncTask

task

=

oss.asyncPutObject(put,

new

OSSCompletedCallback<PutObjectRequest,

PutObjectResult>()

{

@Override

public

void

onSuccess(PutObjectRequest

request,

final

PutObjectResult

result)

{

Observable.just(result).observeOn(AndroidSchedulers.mainThread()).subscribe(new

Action1<PutObjectResult>()

{

@Override

public

void

call(PutObjectResult

putObjectResult)

{

mProgress.setVisibility(View.GONE);

img.setColorFilter(null);

callback.getPicData(result,localFile);

}

});

}

@Override

public

void

onFailure(PutObjectRequest

request,

ClientException

clientExcepion,

ServiceException

serviceException)

{

String

info

=

"";

//

請求異常

if

(clientExcepion

!=

null)

{

//

本地異常如網(wǎng)絡(luò)異常等

clientExcepion.printStackTrace();

info

=

clientExcepion.toString();

}

if

(serviceException

!=

null)

{

//

服務(wù)異常

Log.e("ErrorCode",

serviceException.getErrorCode());

Log.e("RequestId",

serviceException.getRequestId());

Log.e("HostId",

serviceException.getHostId());

Log.e("RawMessage",

serviceException.getRawMessage());

info

=

serviceException.toString();

}

}

});

}

//成功的回調(diào)接口

public

interface

picResultCallback

{

void

getPicData(PutObjectResult

data,String

oldPath);

}

}2.實現(xiàn)OssService的方法（在activity中）public

OssService

initOSS(String

endpoint,

String

bucket)

{

OSSCredentialProvider

credentialProvider;

credentialProvider

=

new

STSGetter(tokenBean);

//設(shè)置網(wǎng)絡(luò)參數(shù)

ClientConfiguration

conf

=

new

ClientConfiguration();

conf.setConnectionTimeout(15

*

1000);

//

連接超時，默認(rèn)15秒

conf.setSocketTimeout(15

*

1000);

//

socket超時，默認(rèn)15秒

conf.setMaxConcurrentRequest(5);

//

最大并發(fā)請求書，默認(rèn)5個

conf.setMaxErrorRetry(2);

//

失敗后最大重試次數(shù)，默認(rèn)2次

OSS

oss

=

new

OSSClient(getApplicationContext(),

endpoint,

credentialProvider,

conf);

return

new

OssService(oss,

bucket,

this);

}3.重載OSSFederationCredentialProvider生成自己的獲取STS的功能（一般自動獲得token寫在這里，在getFederationToken()方法中，告訴它你獲得token的規(guī)則即可）1>官方demo代碼（自動更新token）public

class

OSSAuthCredentialsProvider

extends

OSSFederationCredentialProvider

{

private

String

mAuthServerUrl;

private

AuthDecoder

mDecoder;

public

OSSAuthCredentialsProvider(String

authServerUrl)

{

this.mAuthServerUrl

=

authServerUrl;

}

/**

*

set

auth

server

url

*

@param

authServerUrl

*/

public

void

setAuthServerUrl(String

authServerUrl)

{

this.mAuthServerUrl

=

authServerUrl;

}

/**

*

set

response

data

decoder

*

@param

decoder

*/

public

void

setDecoder(AuthDecoder

decoder)

{

this.mDecoder

=

decoder;

}

@Override

public

OSSFederationToken

getFederationToken()

throws

ClientException

{

OSSFederationToken

authToken;

String

authData;

try

{

URL

stsUrl

=

new

URL(mAuthServerUrl);

HttpURLConnection

conn

=

(HttpURLConnection)

stsUrl.openConnection();

conn.setConnectTimeout(10000);

InputStream

input

=

conn.getInputStream();

authData

=

IOUtils.readStreamAsString(input,

OSSConstants.DEFAULT_CHARSET_NAME);

if

(mDecoder

!=

null)

{

authData

=

mDecoder.decode(authData);

}

JSONObject

jsonObj

=

new

JSONObject(authData);

int

statusCode

=

jsonObj.getInt("StatusCode");

if

(statusCode

==

200)

{

String

ak

=

jsonObj.getString("AccessKeyId");

String

sk

=

jsonObj.getString("AccessKeySecret");

String

token

=

jsonObj.getString("SecurityToken");

String

expiration

=

jsonObj.getString("Expiration");

authToken

=

new

OSSFederationToken(ak,

sk,

token,

expiration);

}

else

{

String

errorCode

=

jsonObj.getString("ErrorCode");

String

errorMessage

=

jsonObj.getString("ErrorMessage");

throw

new

ClientException("ErrorCode:

"

+

errorCode

+

"|

ErrorMessage:

"

+

errorMessage);

}

return

authToken;

}

catch

(Exception

e)

{

throw

new

ClientException(e);

}

}

public

interface

AuthDecoder

{

String

decode(String

data);

}

}2>自己的代碼（因為自己的所有數(shù)據(jù)都是從后臺獲得的，而且結(jié)合rxjava沒有想到可以返回數(shù)據(jù)的方式，所以采用手動更新token的方式）手動更新token的具體操作：首先token的值存在MyApp中，第一次在進(jìn)入需要用到token界面時候，先獲得token的值更新MyApp中的值并記錄當(dāng)下的時間，如果下次再次進(jìn)入任何一個需要用到token的界面的時候，則判斷時間是否過期，過期則重新請求token更新token的值。public

class

STSGetter

extends

OSSFederationCredentialProvider

{

private

OSSFederationToken

ossFederationToken;

String

ak;

String

sk;

String

token

;

String

expiration

;

public

STSGetter(TokenBean

bean)

{

this.ak

=

bean.getCredentials().getAccessKeyId();

this.sk

=

bean.getCredentials().getAccessKeySecret();

this.token

=

bean.getCredentials().getS