16 lines
474 B
Java
16 lines
474 B
Java
package com.rosetta.im.protocol.util;
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public class StringUtil {
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public static String randomString(int length) {
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StringBuilder sb = new StringBuilder();
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String characters = "ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz0123456789";
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for (int i = 0; i < length; i++) {
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int index = (int) (Math.random() * characters.length());
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sb.append(characters.charAt(index));
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}
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return sb.toString();
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}
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}
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