HttpClient远程调用接口

　　详细参考这个博文：http://www.cnblogs.com/itliucheng/p/5065619.html

一、get请求：

  　　　　　　　　//关键代码就这几行

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

//        //往服务器端写内容 也就是发起http请求需要带的参数
//        // 根据地址获取请求
       HttpGet request = new HttpGet(urlNameString);//这里发送get请求
//        // 获取当前客户端对象
        HttpClient httpClient = new DefaultHttpClient();
//        // 通过请求对象获取响应对象

       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 {
                // 根据地址获取请求
                HttpGet request = new HttpGet(urlNameString);//这里发送get请求
                // 获取当前客户端对象
                HttpClient httpClient = new DefaultHttpClient();
                // 通过请求对象获取响应对象
                HttpResponse response = httpClient.execute(request);
                
                // 判断网络连接状态码是否正常(0--200都数正常)
                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是用户信息,站内业务以及具体的json转换这里也不写了...
    }

　

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

　　

二、但是由于get方式请求内容大小有限，现在改由post请求提交：

//接口形式 
 // @ApiOperation("测试选择数据并添加分类接口，word需要分类的文本，classifyName添加分类")
    @PostMapping("/setResult")
    public Result<String> setResult(@RequestParam String word,@RequestParam String classifyName) {
        int i1 = classifyService.selectClassifyCountByName(classifyName);
        if (i1 > 0) {
            //分类已存在
            Classify classify = classifyService.selectClassifyByName(classifyName);
            KeyWord keyword = new KeyWord();
            keyword.setKeywordName(word);
            keyword.setClassifyId(classify.getId());
            classifyService.addKeyWord(keyword);//添加KeyWord数据
            modelExercise();//更新本地硬盘的表

//关键代码就这几行   
String urlNameString = "http://127.0.0.1:8601/setResult";

        //POST的URL
        HttpPost httppost = new HttpPost(urlNameString);
        //建立HttpPost对象
        List<NameValuePair> params = new ArrayList<NameValuePair>();
        //建立一个NameValuePair数组，用于存储欲传送的参数
        params.add(new BasicNameValuePair("word", word));
        params.add(new BasicNameValuePair("classifyName", classifyName));
        //添加参数
        httppost.setEntity(new UrlEncodedFormEntity(params, HTTP.UTF_8));
        //设置编码
        HttpResponse response = new DefaultHttpClient().execute(httppost);
        //发送Post,并返回一个HttpResponse对象
        if (response.getStatusLine().getStatusCode() == 200) {//如果状态码为200,就是正常返回
            String result = EntityUtils.toString(response.getEntity());
        }

三、结果数据库用varchar无法容纳内容，现在改由text来存储