以MIME为application-json方式提交参数示例

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以 application/json作为请求头格式可以提交json字符串作为request参数。。服务端直接读取request的输入流即可拿到该完整字符串再使用jsonlib库转化为JSON对象，示例代码如下：

  • 浏览器端：

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    var obj= {
      method:"login",
      staff_id:"staff",
      password:"123"
      };

    $.ajax({
      url: "index.do",
      type:"post",
      contentType:"application/json",
      data:JSON.stringify(obj),
      success: function( data ) {
        alert("aaa");
      }
    });

  • 服务端：

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    BufferedReader br = new BufferedReader(new InputStreamReader(
    		req.getInputStream(), "UTF-8"));
    String temp;
    while ((temp = br.readLine()) != null) {
    	sb.append(temp);
    }
    br.close();
    result = new String(sb.toString());
    result = URLDecoder.decode(result, "UTF-8");

    JSONObject jsonObject = new JSONObject();
    try {
    	jsonObject = JSONObject.fromObject(result);
    } catch (Exception e) {
    	String errorInfo = "{\"loginFlag\":\"9999\",\"loginInfo\":\"入参格式有误\"}";
    	out.print(errorInfo);
    	out.flush();
    	out.close();
    	return null;
    }

    String method = jsonObject.getString("method");

    if (method!=null&&!"".equals(method)){
    	if(method.equals("login")) {
    		this.login(jsonObject, resp);
    	}else if(method.equals("anotherm")){
    		this.anotherm(jsonObject,resp);
    	}
    } else{
    	String errorInfo = "{\"loginFlag\":\"9999\",\"loginInfo\":\"入参格式有误\"}";
    	out.print(errorInfo);
    	out.flush();
    	out.close();
    	return null;
    }