前面介紹了有道翻譯接口 破解，接下來試一試谷歌翻譯（Github項目地址）
同樣，查看首頁元素，如下：

得到 Request URL 和 Request Method。
然后查看 From Data，可以看到一系列的參數，不過我們重點只需要關注 tk。

按照推斷，tk 參數值也是一種簽名，通過某種方法得到。我們從眾多的 js 代碼中可以發現一些端倪。

通過格式化 js 代碼，得到

實際上，已經有大佬將計算 tk 代碼破解了，這里我就直接放上來：

function token(a) { var k = ""; var b = 406644; var b1 = 3293161072; var jd = "."; var sb = "+-a^+6"; var Zb = "+-3^+b+-f"; for (var e = [], f = 0, g = 0; g < a.length; g++) { var m = a.charCodeAt(g); 128 > m ? e[f++] = m : (2048 > m ? e[f++] = m >> 6 | 192 : (55296 == (m & 64512) && g + 1 < a.length && 56320 == (a.charCodeAt(g + 1) & 64512) ? (m = 65536 + ((m & 1023) << 10) + (a.charCodeAt(++g) & 1023), e[f++] = m >> 18 | 240, e[f++] = m >> 12 & 63 | 128) : e[f++] = m >> 12 | 224, e[f++] = m >> 6 & 63 | 128), e[f++] = m & 63 | 128) } a = b; for (f = 0; f < e.length; f++)a += e[f], a = RL(a, sb); a = RL(a, Zb); a ^= b1 || 0; 0 > a && (a = (a & 2147483647) + 2147483648); a %= 1E6; return a.toString() + jd + (a ^ b) }; function RL(a, b) { var t = "a"; var Yb = "+"; for (var c = 0; c < b.length - 2; c += 3) { var d = b.charAt(c + 2), d = d >= t ? d.charCodeAt(0) - 87 : Number(d), d = b.charAt(c + 1) == Yb ? a >>> d: a << d; a = b.charAt(c) == Yb ? a + d & 4294967295 : a ^ d } return a }

tk 都得到了，剩下的按部就班的就 OK 啦，JAVA 代碼如下：

public class Google {public static void main(String[] args) throws Exception {String from = "zh-CN";String to = "en";String q = "我是誰，我在哪兒？";String url = "http://translate.google.cn/translate_a/single";String tk = token(q);Map<String, String> params = new HashMap<String, String>();params.put("client", "t");params.put("sl", from);params.put("tl", to);params.put("hl", "zh-CN");params.put("dt", "at");params.put("dt", "bd");params.put("dt", "ex");params.put("dt", "ld");params.put("dt", "md");params.put("dt", "qca");params.put("dt", "rw");params.put("dt", "rm");params.put("dt", "ss");params.put("dt", "t");params.put("ie", "UTF-8");params.put("oe", "UTF-8");params.put("source", "btn");params.put("ssel", "0");params.put("tsel", "0");params.put("kc", "0");params.put("tk", tk);params.put("q", q);CloseableHttpClient httpClient = HttpClients.createDefault();URIBuilder uri = new URIBuilder(url);for (String key : params.keySet()) {String value = params.get(key);uri.addParameter(key, value);}HttpUriRequest request = new HttpGet(uri.toString());CloseableHttpResponse response = httpClient.execute(request);HttpEntity entity = response.getEntity();String result = EntityUtils.toString(entity, "utf-8");System.out.println(result);EntityUtils.consume(entity);response.getEntity().getContent().close();response.close();}private static String token(String value) {String result = "";ScriptEngine engine = new ScriptEngineManager().getEngineByName("js");try {FileReader reader = new FileReader("Google.js");engine.eval(reader);if (engine instanceof Invocable) {Invocable invoke = (Invocable)engine;result = String.valueOf(invoke.invokeFunction("token", value));}} catch (Exception e) {e.printStackTrace();}return result;} }

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