小编Shi*_* Ns的帖子

我正在使用html2canvas网页的截图，然后利用复制内容到剪贴板navigator.clipboard.write和ClipboardItem。这在 chrome 上运行良好

tempCanvas.toBlob(function(blob) {
    navigator.clipboard
        .write([
        new ClipboardItem(
            Object.defineProperty({}, blob.type, {
                value: blob,
                enumerable: true
            })
        )
    ]).then(function() {
        console.log( "Copied to clipboard");
    });
});

但这不适用于 Firefox 和 Safari

我在尝试

tempCanvas.toBlob(function(blob) { 
    let data   = new DataTransfer();
    data.items.add("image/jpeg", blob);
    navigator.clipboard.write(data).then(function() {
        console.log( "Copied to clipboard");
    });
});

似乎不起作用。

我必须使用AES 128位在IOS Objective-C中使用java加密和解密

我有这个Java程序

import java.util.Base64;
import javax.crypto.Cipher;
import javax.crypto.KeyGenerator;
import javax.crypto.SecretKey;
import javax.crypto.spec.SecretKeySpec;
import sun.misc.BASE64Encoder;
import sun.misc.BASE64Decoder;
import javax.crypto.spec.IvParameterSpec;

public class EncryptionDecryptionAES {
    static Cipher cipher;

    public static void main(String[] args) throws Exception {
            String plainText = "AES Symmetric Encryption Decryption";
            String Enc       = Encrypt(plainText,"testkey");
            System.out.println("Enc :" + Enc+":");
    }

    public static String Decrypt(String text, String key) throws Exception {
        Cipher cipher = Cipher.getInstance("AES/CBC/PKCS5Padding");
        byte[] keyBytes = new byte[16];
        byte[] b = key.getBytes("UTF-8");
        int len = b.length;
        if (len …