HttpClient遠程調用接口

　　詳細參考這個博文：http://www.cnblogs.com/itliucheng/p/5065619.html

1、get請求：

 

  　　　　　　　　//關鍵代碼就這幾行

     String urlNameString ="http://127.0.0.1:8601/setResult/" + text + "/" + newWordsText;

//        //往服務器端寫內容 也就是發起http請求須要帶的參數
//        // 根據地址獲取請求
       HttpGet request = new HttpGet(urlNameString);//這裏發送get請求
//        // 獲取當前客戶端對象
        HttpClient httpClient = new DefaultHttpClient();
//        // 經過請求對象獲取響應對象

       HttpResponse response = httpClient.execute(request);
======================================================================

@RequestMapping("getWeChatUserInfo")
    @ResponseBody
    public String getWeChatUserInfo(String token,String openid){
        String urlNameString = "https://api.weixin.qq.com/sns/userinfo?access_token=TOKEN&openid=OPENID";
        urlNameString=urlNameString.replace("TOKEN", token);
        urlNameString=urlNameString.replace("OPENID",openid);
        String result="";
          try {
                // 根據地址獲取請求
                HttpGet request = new HttpGet(urlNameString);//這裏發送get請求
                // 獲取當前客戶端對象
                HttpClient httpClient = new DefaultHttpClient();
                // 經過請求對象獲取響應對象
                HttpResponse response = httpClient.execute(request);
                
                // 判斷網絡鏈接狀態碼是否正常(0--200都數正常)
                if (response.getStatusLine().getStatusCode() == HttpStatus.SC_OK) {
                    result= EntityUtils.toString(response.getEntity(),"utf-8");
                } 
            } catch (Exception e) {
                // TODO Auto-generated catch block
                e.printStackTrace();
            }
        return result;
        //....result是用戶信息,站內業務以及具體的json轉換這裏也不寫了...
    }

 

　

//要調用的接口形式   
 @GetMapping("/setResult/{word}/{classifyName}")
    public Result<String> setResult(@PathVariable("word") String word, @PathVariable("classifyName") String classifyName) {
        int i1 = classifyService.selectClassifyCountByName(classifyName);

　　

2、可是因爲get方式請求內容大小有限，如今改由post請求提交：

 

//接口形式 
 // @ApiOperation("測試選擇數據並添加分類接口，word須要分類的文本，classifyName添加分類")
    @PostMapping("/setResult")
    public Result<String> setResult(@RequestParam String word,@RequestParam String classifyName) {
        int i1 = classifyService.selectClassifyCountByName(classifyName);
        if (i1 > 0) {
            //分類已存在
            Classify classify = classifyService.selectClassifyByName(classifyName);
            KeyWord keyword = new KeyWord();
            keyword.setKeywordName(word);
            keyword.setClassifyId(classify.getId());
            classifyService.addKeyWord(keyword);//添加KeyWord數據
            modelExercise();//更新本地硬盤的表

//關鍵代碼就這幾行   
String urlNameString = "http://127.0.0.1:8601/setResult";

        //POST的URL
        HttpPost httppost = new HttpPost(urlNameString);
        //創建HttpPost對象
        List<NameValuePair> params = new ArrayList<NameValuePair>();
        //創建一個NameValuePair數組，用於存儲欲傳送的參數
        params.add(new BasicNameValuePair("word", word));
        params.add(new BasicNameValuePair("classifyName", classifyName));
        //添加參數
        httppost.setEntity(new UrlEncodedFormEntity(params, HTTP.UTF_8));
        //設置編碼
        HttpResponse response = new DefaultHttpClient().execute(httppost);
        //發送Post,並返回一個HttpResponse對象
        if (response.getStatusLine().getStatusCode() == 200) {//若是狀態碼爲200,就是正常返回
            String result = EntityUtils.toString(response.getEntity());
        }

3、結果數據庫用varchar沒法容納內容，如今改由text來存儲