web3.js

const address = "0x0089d53F703f7E0843953D48133f74cE247184c2"
let result = Web3.utils.isAddress(address)
console.log(result)  // => true

web3j

社区fork为其增加了isAddress commit
https://github.com/bcskill/web3j

package org.web3j.utils;

import org.junit.Test;

import static junit.framework.TestCase.assertFalse;
import static org.junit.Assert.assertTrue;

import static org.web3j.utils.Account.isAddress;

public class AccountTest {
    @Test
    public void verifyIsAddress() {
        String validLowerCaseAddress = "0x3de8c14c8e7a956f5cc4d82beff749ee65fdc358";
        assertTrue(isAddress(validLowerCaseAddress));
        String validChecksumAddress = "0xfB6916095ca1df60bB79Ce92cE3Ea74c37c5d359";
        assertTrue(isAddress(validChecksumAddress));
        String invalidLengthAddress = "0x3de8c14c8e7a956f5cc4d82beff749ee65bac35";
        assertFalse(isAddress(invalidLengthAddress));
        String invalidChecksumAddress = "0x3de8c14c8E7a956f5cc4d82beff749ee65fdc358";
        assertFalse(isAddress(invalidChecksumAddress));
    }
} 

参考

https://piyopiyo.medium.com/how-to-check-if-ethereum-address-is-valid-or-not-ef587b6c4819
https://github.com/assafY/web3j.git

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