在Java中使用相同的加密算法和密钥将字符串进行加密，然后将其传输到Angular端。在Angular中使用CryptoJS库解密该加密字符串。

下面是Java端的示例代码：

import java.security.Key;

import javax.crypto.Cipher;
import javax.crypto.spec.SecretKeySpec;

public class CryptoUtil {

    private static final String ALGO = "AES";
    private static final byte[] KEY_VALUE = "thisismysecrekey".getBytes();

    public static String encrypt(String data) throws Exception {
        Key key = generateKey();
        Cipher c = Cipher.getInstance(ALGO);
        c.init(Cipher.ENCRYPT_MODE, key);
        byte[] encVal = c.doFinal(data.getBytes());
        return new sun.misc.BASE64Encoder().encode(encVal);
    }

    public static String decrypt(String encryptedData) throws Exception {
        Key key = generateKey();
        Cipher c = Cipher.getInstance(ALGO);
        c.init(Cipher.DECRYPT_MODE, key);
        byte[] decordedValue = new sun.misc.BASE64Decoder().decodeBuffer(encryptedData);
        byte[] decValue = c.doFinal(decordedValue);
        return new String(decValue);
    }

    private static Key generateKey() throws Exception {
        return new SecretKeySpec(KEY_VALUE, ALGO);
    }
}

下面是Angular端的示例代码：

import * as CryptoJS from 'crypto-js';

const encryptedData = 'zwjkleHKJscVVJnQSPNv4M4AZR2WblrEbEJnIqZXIvw=';
const key = CryptoJS.enc.Utf8.parse('thisismysecrekey');
const decryptedData = CryptoJS.AES.decrypt(encryptedData, key, {
  mode: CryptoJS.mode.ECB,
  padding: CryptoJS.pad.Pkcs7
});

console.log(decryptedData.toString(CryptoJS.enc.Utf8));

这两段代码将会输出同样的字符串，即在Java端加密并在Angular端解密的字符串。