C# 字典排序Array.Sort

Array.Sort可以实现便捷的字典排序,但如果完全相信他,那么就容易产生些异常!太顺利了,往往是前面有坑等你。

比如:微信接口,好多地方需要签名认证,签名的时候需要用的字典排序,如果只用Array.Sort()会出现签名异常的情况,而且是偶尔出现。

问题就在于他的排序默认没有区分大小写,这跟微信的签名将不匹配,所以还是需要自己实现比较的方法

public class DictionarySort : System.Collections.IComparer
        {
            public int Compare(object oLeft, object oRight)
            {
                string sLeft = oLeft as string;
                string sRight = oRight as string;
                int iLeftLength = sLeft.Length;
                int iRightLength = sRight.Length;
                int index = 0;
                while (index < iLeftLength && index < iRightLength)
                {
                    if (sLeft[index] < sRight[index])
                        return -1;
                    else if (sLeft[index] > sRight[index])
                        return 1;
                    else
                        index++;
                }
                return iLeftLength - iRightLength;

            }
        }



string[] arr = { "E0o2-at6NcC2OsJiQTlwlCYXETNlXymc-tIaxXdRNahmhLtvORQGZfIvXWmiTberoB4ARrwHR-XxB47vfIKY_Q", 
                               "1449221063", 
                               "p8hR6s3Eljz2TLLJab7rmJaOXHvc", 
                               "a9233845d1c74e8194e6979a4210c804" };

            Array.Sort(arr);
            string tmpStr = string.Join("", arr);
            this.textBox1.Text = tmpStr;
//1449221063a9233845d1c74e8194e6979a4210c804E0o2-at6NcC2OsJiQTlwlCYXETNlXymc-tIaxXdRNahmhLtvORQGZfIvXWmiTberoB4ARrwHR-XxB47vfIKY_Qp8hR6s3Eljz2TLLJab7rmJaOXHvc



            Array.Sort(arr, new DictionarySort());
            this.textBox2.Text = string.Join("", arr);
//1449221063E0o2-at6NcC2OsJiQTlwlCYXETNlXymc-tIaxXdRNahmhLtvORQGZfIvXWmiTberoB4ARrwHR-XxB47vfIKY_Qa9233845d1c74e8194e6979a4210c804p8hR6s3Eljz2TLLJab7rmJaOXHvc

 

posted @ 2015-12-04 18:27  jackchain  阅读(1965)  评论(0编辑  收藏  举报