url传参解决中文乱码

跳转前：

window.open("http://localhost:9728/content/agent/devolution.html?search_agent=" + encodeURIComponent(va));

取：

下面是解码的方法：

function Utf8ToUnicode(strUtf8) {
        var bstr = "";
        var nTotalChars = strUtf8.length;        // total chars to be processed.
        var nOffset = 0;                                        // processing point on strUtf8
        var nRemainingBytes = nTotalChars;        // how many bytes left to be converted
        var nOutputPosition = 0;
        var iCode, iCode1, iCode2;                        // the value of the unicode.

        while (nOffset < nTotalChars) {
            iCode = strUtf8.charCodeAt(nOffset);
            if ((iCode & 0x80) == 0)                        // 1 byte.
            {
                if (nRemainingBytes < 1)                // not enough data
                    break;

                bstr += String.fromCharCode(iCode & 0x7F);
                nOffset++;
                nRemainingBytes -= 1;
            }
            else if ((iCode & 0xE0) == 0xC0)        // 2 bytes
            {
                iCode1 = strUtf8.charCodeAt(nOffset + 1);
                if (nRemainingBytes < 2 ||                        // not enough data
                                   (iCode1 & 0xC0) != 0x80)                // invalid pattern
                {
                    break;
                }

                bstr += String.fromCharCode(((iCode & 0x3F) << 6) | (iCode1 & 0x3F));
                nOffset += 2;
                nRemainingBytes -= 2;
            }
            else if ((iCode & 0xF0) == 0xE0)        // 3 bytes
            {
                iCode1 = strUtf8.charCodeAt(nOffset + 1);
                iCode2 = strUtf8.charCodeAt(nOffset + 2);
                if (nRemainingBytes < 3 ||                        // not enough data
                                   (iCode1 & 0xC0) != 0x80 ||                // invalid pattern
                                   (iCode2 & 0xC0) != 0x80) {
                    break;
                }

                bstr += String.fromCharCode(((iCode & 0x0F) << 12) |
                                          ((iCode1 & 0x3F) << 6) |
                                          (iCode2 & 0x3F));
                nOffset += 3;
                nRemainingBytes -= 3;
            }
            else                                                                // 4 or more bytes -- unsupported
                break;
        }

        if (nRemainingBytes != 0) {
            // bad UTF8 string.
            return "";
        }

        return bstr;
    }

　　$("#txt_query_key").val(Utf8ToUnicode(“键”));