Here you can find the source of sha1(String ori)
public static String sha1(String ori)
//package com.java2s; /*//from www. ja v a 2s . co m * Copyright 1999-2101 Alibaba Group. * * Licensed under the Apache License, Version 2.0 (the "License"); * you may not use this file except in compliance with the License. * You may obtain a copy of the License at * http://www.apache.org/licenses/LICENSE-2.0 * Unless required by applicable law or agreed to in writing, software * distributed under the License is distributed on an "AS IS" BASIS, * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. * See the License for the specific language governing permissions and * limitations under the License. */ import java.math.BigInteger; import java.security.MessageDigest; import java.security.NoSuchAlgorithmException; public class Main { public static String sha1(String ori) { try { MessageDigest md = MessageDigest.getInstance("sha1"); md.update(ori.getBytes(), 0, ori.length()); BigInteger i = new BigInteger(1, md.digest()); return String.format("%1$040x", i); } catch (NoSuchAlgorithmException e) { e.printStackTrace(); return ori; } } }