apache Lists.newArrayList<>()

This code creates a new ArrayList instance using the generic type parameter `<E>` provided by the `List` interface in the Apache Commons Collections library. The `newArrayList<>()` method initializes the ArrayList with an initial capacity of 10. This method is useful when you want to create a new ArrayList instance and populate it with elements in a single step. For example:

List<String> myList = Lists.newArrayList("apple", "banana", "orange");

This creates a new ArrayList of Strings and populates it with the elements "apple", "banana", and "orange".

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apache Lists.newArrayList<>() pom

This is a code snippet from the Apache Commons Collections library.

`Lists.newArrayList<>()` is a method call that creates a new ArrayList that can hold any type of object. The angle brackets (`<>`) indicate that the ArrayList is a generic type, meaning that it can hold any type of object, but the type must be specified when the list is initialized.

The `pom` part of the code is not related to the `Lists.newArrayList<>()` method call. It is likely referring to the Maven Project Object Model (POM) file, which is an XML file that contains information about a project and its dependencies. The `pom` file is used by Maven to build and manage the project.

将以下JAVA代码转为PHP代码：import java.security.spec.*; import java.security.*; import java.util.*; import org.apache.commons.lang3.StringUtils; public class SignUtils { public static String signSHA256(byte[] message, byte[] privateKeyBytes) throws Exception { PKCS8EncodedKeySpec priPKCS8 = new PKCS8EncodedKeySpec(Base64.getDecoder().decode(privateKeyBytes)); KeyFactory keyf = KeyFactory.getInstance("RSA"); PrivateKey privateKey = keyf.generatePrivate(priPKCS8); Signature sign = Signature.getInstance("SHA256withRSA"); sign.initSign(privateKey); sign.update(message); return Base64.getEncoder().encodeToString(sign.sign()); } public static String makeSignStr(Map<String, String> params) { List<String> keys = Lists.newArrayList(); for (Map.Entry<String, String> entry : params.entrySet()) { if ("sign".equals(entry.getKey())) { continue; } if (StringUtils.isNotBlank(entry.getValue())) { keys.add(entry.getKey()); } } Collections.sort(keys); List<String> temp = Lists.newArrayList(); for (String key : keys) { String value = params.get(key); temp.add(key + "=" + value); } return StringUtils.join(temp, "&"); } public static void main(String[] args) { try { //读取私钥 byte[] privateKeyBytes = null; Map<String, String> params = new HashMap<>(); params.put("mch_id", "商户编号"); params.put("app_id", "应用ID"); params.put("timestamp", "1541661668"); params.put("nonce_str", "aiz04enx0a2"); params.put("sign_type", "SHA"); params.put("version", "2.0"); params.put("content", "VBDExvz6/k56B1S5n7n3uOvI2sxZixcsV0Tdld92ym0CpnN8ooiCkXPgg0N1z8NC"); //签名 String sign = SignUtils.signSHA256(makeSignStr(params).getBytes("UTF-8"), privateKeyBytes); } catch (Exception e) { e.printStackTrace(); } } }

以下是将JAVA代码转为PHP代码的结果：

<?php

use phpseclib\Crypt\RSA;
use phpseclib\Math\BigInteger;

class SignUtils {

    public static function signSHA256($message, $privateKeyBytes) {
        $rsa = new RSA();
        $rsa->loadKey($privateKeyBytes);
        $rsa->setSignatureMode(RSA::SIGNATURE_PKCS1);
        $signature = $rsa->sign($message);
        return base64_encode($signature);
    }

    public static function makeSignStr($params) {
        $keys = array();
        foreach ($params as $key => $value) {
            if ($key === 'sign' || empty($value)) {
                continue;
            }
            $keys[] = $key;
        }
        sort($keys);

        $temp = array();
        foreach ($keys as $key) {
            $value = $params[$key];
            $temp[] = $key . '=' . $value;
        }

        return implode('&', $temp);
    }

    public static function main() {
        try {
            // 读取私钥
            $privateKeyBytes = null;

            $params = array(
                'mch_id' => '商户编号',
                'app_id' => '应用ID',
                'timestamp' => '1541661668',
                'nonce_str' => 'aiz04enx0a2',
                'sign_type' => 'SHA',
                'version' => '2.0',
                'content' => 'VBDExvz6/k56B1S5n7n3uOvI2sxZixcsV0Tdld92ym0CpnN8ooiCkXPgg0N1z8NC'
            );

            // 签名
            $sign = SignUtils::signSHA256(
                utf8_encode(SignUtils::makeSignStr($params)),
                $privateKeyBytes
            );
        } catch (Exception $e) {
            echo $e->getMessage();
        }
    }

}