最近公司有需求，需要调用谷歌翻译的接口。虽然我最后可以勉强实现了翻译的功能，但还是把这个方法记录下来供各位参考。

首先声明，我这种实现方法只能翻译少量的内容，如果想要翻译比较多的内容就只能把内容拆分开来翻译。

1.找到谷歌翻译，通过f12查看谷歌翻译的时候调用的接口：https://translate.google.cn/translate_a/single?client=t&sl=auto&tl=en&hl=zhCN&dt=at&dt=bd&dt=ex&dt=ld&dt=md&dt=qca&dt=rw&dt=rm&dt=ss&dt=t&ie=UTF8&oe=UTF8&ssel=0&tsel=3&kc=0&tk=80338.476099&q=%E4%BB%96%E4%BB%AC%E8%BF%99%E6%A0%B7%E8%AF%B4

解析开来就是：client=t、sl=auto、tl=toLanguage、hl=fromLanguage、da=at、dt=bd、dt=ex、dt=ld、dt=gca、dt=rw、dt=rm、dt=ss、dt=t、ie=UTF8、oe=UTF8、ssel=0、tsel=3、kc=0、tk=（需要经过js文件的计算）、q=（需要翻译的文字）

这么多参数中只有tk参数最麻烦，需要使用经过js文件的计算得到，js文件我会在文章最后面分享。

2.使用jsoup模拟浏览器发送请求，接收到返回信息并解析返回信息，得到翻译的结果。（注意：一定要给请求中间加一条sleep(1000),否则谷歌可能会封你得ip）

//谷歌翻译(只能翻译比较短的内容)Getpublic static String TranslateGoogleGet(String transalteContente,String fromLanguage,String toLanguage){StringBuilder result=new StringBuilder();StringBuilder url=new StringBuilder();try {url.append("https://translate.google.cn/translate_a/single?").append("client=t&sl=").append(fromLanguage).append("&tl=").append(toLanguage).append("&hl=zh-CN").append("&dt=at&dt=bd&dt=ex&dt=ld&dt=md&dt=qca&dt=rw").append("&dt=rm&dt=ss&dt=t&ie=UTF-8&oe=UTF-8&otf=2&ssel=0&tsel=0&kc=1&tk=").append(googleToken(transalteContente)).append("&q=").append(URLEncoder.encode(transalteContente, "utf-8"));} catch (UnsupportedEncodingException e1) {// TODO Auto-generated catch blocke1.printStackTrace();}//获取请求连接try {Thread.sleep(1000);} catch (InterruptedException e1) {// TODO Auto-generated catch blocke1.printStackTrace();}String resp;try {resp = HttpUtil.doGet(url.toString());if("Error Response:caused by-->connect timed out".equals(resp) || "Error Response:caused by-->Read timed out".equals(resp)||"Error Response: HTTP/1.1 503 Service Unavailable".equals(resp)){return "error";}String string = resp.split("]],")[0];String[] split = string.split(",null,null,3],");for (String string2 : split) {if(!string2.contains("[null,null,")){String string3 = string2.split("\",\"")[0];int start = string3.indexOf("\"")+1;result.append(string3.substring(start,string3.length()));}}/*int start = resp.indexOf("\"")+1;int end = resp.indexOf("\"", start+1);*//*String[] split = resp.split("]],")[0].replace("[[[", "[").split("],");for (String string : split) {String replace = string.split(",")[0].replace("[", "").replace("\"", "");if(replace!=null && !"null".equals(replace)){result.append(replace);}}*/return result.toString();} catch (Exception e) {// TODO Auto-generated catch blocke.printStackTrace();}return "";}

 

/*** 获取谷歌翻译的tk值* @param text* @return*/private static String googleToken(String text) {String tk = "";ScriptEngine engine = new ScriptEngineManager().getEngineByName("js");try {//FileReader reader = new FileReader(ConfigUtil.getString("GoogleJs"));URL resource = TranslateUtil.class.getResource("");String string = resource.getPath().split("/WEB-INF")[0];string=string+"/gmphtml/js/Google.js";FileReader reader = new FileReader(string);engine.eval(reader);if (engine instanceof Invocable) {Invocable invoke = (Invocable)engine;tk = String.valueOf(invoke.invokeFunction("token", text));}} catch (Exception e) {e.printStackTrace();}return tk;}   }

Google.js文件分享：链接：https://pan.baidu.com/s/13HCY0T3BvI9zwQNEzyq0Yw 密码：pow2