安卓APP调用支付宝接口的实现_手机app调用支付宝支付

}

// 9000 订单支付成功

// 8000 正在处理中，支付结果未知（有可能已经支付成功），请查询商户订单列表中订单的支付状态

// 4000 订单支付失败

// 5000 重复请求

// 6001 用户中途取消

// 6002 网络连接出错

// 6004 支付结果未知（有可能已经支付成功），请查询商户订单列表中订单的支付状态

// 其它 其它支付错误

}

}

}

}

Base64.java

public final class Base64 {

private static final int BASELENGTH = 128;

private static final int LOOKUPLENGTH = 64;

private static final int TWENTYFOURBITGROUP = 24;

private static final int EIGHTBIT = 8;

private static final int SIXTEENBIT = 16;

private static final int FOURBYTE = 4;

private static final int SIGN = -128;

private static char PAD = ‘=’;

private static byte[] base64Alphabet = new byte[BASELENGTH];

private static char[] lookUpBase64Alphabet = new char[LOOKUPLENGTH];

static {

for (int i = 0; i < BASELENGTH; ++i) {

base64Alphabet[i] = -1;

}

for (int i = ‘Z’; i >= ‘A’; i–) {

base64Alphabet[i] = (byte) (i - ‘A’);

}

for (int i = ‘z’; i >= ‘a’; i–) {

base64Alphabet[i] = (byte) (i - ‘a’ + 26);

}

for (int i = ‘9’; i >= ‘0’; i–) {

base64Alphabet[i] = (byte) (i - ‘0’ + 52);

}

base64Alphabet[‘+’] = 62;

base64Alphabet[‘/’] = 63;

for (int i = 0; i <= 25; i++) {

lookUpBase64Alphabet[i] = (char) (‘A’ + i);

}

for (int i = 26, j = 0; i <= 51; i++, j++) {

lookUpBase64Alphabet[i] = (char) (‘a’ + j);

}

for (int i = 52, j = 0; i <= 61; i++, j++) {

lookUpBase64Alphabet[i] = (char) (‘0’ + j);

}

lookUpBase64Alphabet[62] = (char) ‘+’;

lookUpBase64Alphabet[63] = (char) ‘/’;

}

private static boolean isWhiteSpace(char octect) {

return (octect == 0x20 || octect == 0xd || octect == 0xa || octect == 0x9);

}

private static boolean isPad(char octect) {

return (octect == PAD);

}

private static boolean isData(char octect) {

return (octect < BASELENGTH && base64Alphabet[octect] != -1);

}

/**

• Encodes hex octects into Base64

• @param binaryData

•        Array containing binaryData
  1

• @return Encoded Base64 array

*/

public static String encode(byte[] binaryData) {

if (binaryData == null) {

return null;

}

int lengthDataBits = binaryData.length * EIGHTBIT;

if (lengthDataBits == 0) {

return “”;

}

int fewerThan24bits = lengthDataBits % TWENTYFOURBITGROUP;

int numberTriplets = lengthDataBits / TWENTYFOURBITGROUP;

int numberQuartet = fewerThan24bits != 0 ? numberTriplets + 1

numberTriplets;

char encodedData[] = null;

encodedData = new char[numberQuartet * 4];

byte k = 0, l = 0, b1 = 0, b2 = 0, b3 = 0;

int encodedIndex = 0;

int dataIndex = 0;

for (int i = 0; i < numberTriplets; i++) {

b1 = binaryData[dataIndex++];

b2 = binaryData[dataIndex++];

b3 = binaryData[dataIndex++];

l = (byte) (b2 & 0x0f);

k = (byte) (b1 & 0x03);

byte val1 = ((b1 & SIGN) == 0) ? (byte) (b1 >> 2)

(byte) ((b1) >> 2 ^ 0xc0);

byte val2 = ((b2 & SIGN) == 0) ? (byte) (b2 >> 4)

(byte) ((b2) >> 4 ^ 0xf0);

byte val3 = ((b3 & SIGN) == 0) ? (byte) (b3 >> 6)

(byte) ((b3) >> 6 ^ 0xfc);

encodedData[encodedIndex++] = lookUpBase64Alphabet[val1];

encodedData[encodedIndex++] = lookUpBase64Alphabet[val2 | (k << 4)];

encodedData[encodedIndex++] = lookUpBase64Alphabet[(l << 2) | val3];

encodedData[encodedIndex++] = lookUpBase64Alphabet[b3 & 0x3f];

}

// form integral number of 6-bit groups

if (fewerThan24bits == EIGHTBIT) {

b1 = binaryData[dataIndex];

k = (byte) (b1 & 0x03);

byte val1 = ((b1 & SIGN) == 0) ? (byte) (b1 >> 2)

(byte) ((b1) >> 2 ^ 0xc0);

encodedData[encodedIndex++] = lookUpBase64Alphabet[val1];

encodedData[encodedIndex++] = lookUpBase64Alphabet[k << 4];

encodedData[encodedIndex++] = PAD;

encodedData[encodedIndex++] = PAD;

} else if (fewerThan24bits == SIXTEENBIT) {

b1 = binaryData[dataIndex];

b2 = binaryData[dataIndex + 1];

l = (byte) (b2 & 0x0f);

k = (byte) (b1 & 0x03);

byte val1 = ((b1 & SIGN) == 0) ? (byte) (b1 >> 2)

(byte) ((b1) >> 2 ^ 0xc0);

byte val2 = ((b2 & SIGN) == 0) ? (byte) (b2 >> 4)

(byte) ((b2) >> 4 ^ 0xf0);

encodedData[encodedIndex++] = lookUpBase64Alphabet[val1];

encodedData[encodedIndex++] = lookUpBase64Alphabet[val2 | (k << 4)];

encodedData[encodedIndex++] = lookUpBase64Alphabet[l << 2];

encodedData[encodedIndex++] = PAD;

}

return new String(encodedData);

}

/**

• Decodes Base64 data into octects

• @param encoded

•        string containing Base64 data
  1

• @return Array containind decoded data.

*/

public static byte[] decode(String encoded) {

if (encoded == null) {

return null;

}

char[] base64Data = encoded.toCharArray();

// remove white spaces

int len = removeWhiteSpace(base64Data);

if (len % FOURBYTE != 0) {

return null;// should be divisible by four

}

int numberQuadruple = (len / FOURBYTE);

if (numberQuadruple == 0) {

return new byte[0];

}

byte decodedData[] = null;

byte b1 = 0, b2 = 0, b3 = 0, b4 = 0;

char d1 = 0, d2 = 0, d3 = 0, d4 = 0;

int i = 0;

int encodedIndex = 0;

int dataIndex = 0;

decodedData = new byte[(numberQuadruple) * 3];

for (; i < numberQuadruple - 1; i++) {

if (!isData((d1 = base64Data[dataIndex++]))

|| !isData((d2 = base64Data[dataIndex++]))

|| !isData((d3 = base64Data[dataIndex++]))

|| !isData((d4 = base64Data[dataIndex++]))) {

return null;

}// if found “no data” just return null

b1 = base64Alphabet[d1];

b2 = base64Alphabet[d2];

b3 = base64Alphabet[d3];

b4 = base64Alphabet[d4];

decodedData[encodedIndex++] = (byte) (b1 << 2 | b2 >> 4);

decodedData[encodedIndex++] = (byte) (((b2 & 0xf) << 4) | ((b3 >> 2) & 0xf));

decodedData[encodedIndex++] = (byte) (b3 << 6 | b4);

}

if (!isData((d1 = base64Data[dataIndex++]))

|| !isData((d2 = base64Data[dataIndex++]))) {

return null;// if found “no data” just return null

}

b1 = base64Alphabet[d1];

b2 = base64Alphabet[d2];

d3 = base64Data[dataIndex++];

d4 = base64Data[dataIndex++];

if (!isData((d3)) || !isData((d4))) {// Check if they are PAD characters

if (isPad(d3) && isPad(d4)) {

if ((b2 & 0xf) != 0)// last 4 bits should be zero

{

return null;

}

byte[] tmp = new byte[i * 3 + 1];

System.arraycopy(decodedData, 0, tmp, 0, i * 3);

tmp[encodedIndex] = (byte) (b1 << 2 | b2 >> 4);

return tmp;

} else if (!isPad(d3) && isPad(d4)) {

b3 = base64Alphabet[d3];

if ((b3 & 0x3) != 0)// last 2 bits should be zero

{

return null;

}

byte[] tmp = new byte[i * 3 + 2];

System.arraycopy(decodedData, 0, tmp, 0, i * 3);

tmp[encodedIndex++] = (byte) (b1 << 2 | b2 >> 4);

tmp[encodedIndex] = (byte) (((b2 & 0xf) << 4) | ((b3 >> 2) & 0xf));

return tmp;

} else {

return null;

}

} else { // No PAD e.g 3cQl

b3 = base64Alphabet[d3];

b4 = base64Alphabet[d4];

decodedData[encodedIndex++] = (byte) (b1 << 2 | b2 >> 4);

decodedData[encodedIndex++] = (byte) (((b2 & 0xf) << 4) | ((b3 >> 2) & 0xf));

decodedData[encodedIndex++] = (byte) (b3 << 6 | b4);

}

return decodedData;

}

/**

• remove WhiteSpace from MIME containing encoded Base64 data.

• @param data

•        the byte array of base64 data (with WS)
  1

• @return the new length

*/

private static int removeWhiteSpace(char[] data) {

if (data == null) {

return 0;

}

// count characters that’s not whitespace

int newSize = 0;

int len = data.length;

for (int i = 0; i < len; i++) {

if (!isWhiteSpace(data[i])) {

data[newSize++] = data[i];

}

}

return newSize;

}

}

PayResult.java

public class PayResult {

private String resultStatus;

private String result;

private String memo;

public PayResult(Map<String, String> rawResult) {

if (rawResult == null) {

return;

}

for (String key : rawResult.keySet()) {

if (TextUtils.equals(key, “resultStatus”)) {

resultStatus = rawResult.get(key);

} else if (TextUtils.equals(key, “result”)) {

result = rawResult.get(key);

} else if (TextUtils.equals(key, “memo”)) {

memo = rawResult.get(key);

}

}

}

@Override

public String toString() {

return “resultStatus={” + resultStatus + “};memo={” + memo

• “};result={” + result + “}”;

}

/**

• @return the resultStatus

*/

public String getResultStatus() {

return resultStatus;

}

/**

• @return the memo

*/

public String getMemo() {

return memo;

}

/**

• @return the result

*/

public String getResult() {

return result;

}

}

SignUtils.java

public class SignUtils {

private static final String ALGORITHM = “RSA”;

private static final String SIGN_ALGORITHMS = “SHA1WithRSA”;

private static final String DEFAULT_CHARSET = “UTF-8”;

public static String sign(String content, String privateKey) {

try {

PKCS8EncodedKeySpec priPKCS8 = new PKCS8EncodedKeySpec(

Base64.decode(privateKey));

KeyFactory keyf = KeyFactory.getInstance(ALGORITHM);

最后我还整理了很多Android中高级的PDF技术文档。以及一些大厂面试真题解析文档。

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需要这份系统化学习资料的朋友，可以戳这里获取

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= “RSA”;

private static final String SIGN_ALGORITHMS = “SHA1WithRSA”;

private static final String DEFAULT_CHARSET = “UTF-8”;

public static String sign(String content, String privateKey) {

try {

PKCS8EncodedKeySpec priPKCS8 = new PKCS8EncodedKeySpec(

Base64.decode(privateKey));

KeyFactory keyf = KeyFactory.getInstance(ALGORITHM);

最后我还整理了很多Android中高级的PDF技术文档。以及一些大厂面试真题解析文档。

[外链图片转存中…(img-1AWZtf4M-1714609412730)]

Android高级架构师之路很漫长，一起共勉吧！

网上学习资料一大堆，但如果学到的知识不成体系，遇到问题时只是浅尝辄止，不再深入研究，那么很难做到真正的技术提升。

需要这份系统化学习资料的朋友，可以戳这里获取

一个人可以走的很快，但一群人才能走的更远！不论你是正从事IT行业的老鸟或是对IT行业感兴趣的新人，都欢迎加入我们的的圈子（技术交流、学习资源、职场吐槽、大厂内推、面试辅导），让我们一起学习成长！