ClassCastException: java. lang.String cannot be cast to com. alibaba. fastjson. Solution of jsonobject

Problem overview About this problem, it is the problem encountered when cooperating with a third-party company to remotely call the service interface (which is equivalent to calling the remote service provider), "java.lang.ClassCastException: java.lang.String cannot be cast to com.alibaba.fastjson.JSONObject" means that the JSON str ...

Posted by deezzer on Wed, 25 May 2022 23:33:56 +0300

Still processing JSON with map[string]interface {}? Tell you a more efficient method - jsonvalue

This article introduces jsonvalue Library , this is the first multi-functional and comprehensive Go library I developed on Github. At present, it is mainly used in the development of Tencent's future community to replace map[string]interface {}. Why develop this library? Go is a cutting edge in background development. Go engineers will come int ...

Posted by Darhazer on Tue, 24 May 2022 15:58:27 +0300

[AJAX Tutorial] Three ways for Jquery to implement AJAX requests

Three ways for Jquery to implement AJAX requests content Three ways for Jquery to implement AJAX requests Introduction Project preparation $.get() method $.post() method $.ajax() method Project demo related articles  [AJAX Tutorial] JS Native AJAX Request Introduction There are many methods of AJAX submission provided in the JQ ...

Posted by figuringout on Tue, 24 May 2022 04:00:18 +0300

Basic knowledge of JS (covering basic interview questions)

Summarize some basic front-end knowledge. Some knowledge may be asked during the front-end interview, so making a record will also help others check. If there are any questions, you can point them out and actively correct them. Variable types and calculations What are the types of typeof in JS console.log(typeof undefined); //undefi ...

Posted by AMV on Fri, 20 May 2022 02:05:46 +0300

How to Secure Your Documents with JSON Web Tokens (JWT)

How to Secure Your Documents with JSON Web Tokens (JWT) In this article, we explain how to use JSON Web Token JWT to protect online documents from unauthorized access, so that you can more securely integrate online document editor development into your own web applications. The open source office suite ONLYOFFICE Docs will be integrated her ...

Posted by shonuff on Wed, 18 May 2022 00:53:22 +0300

Converting entities to json data format -- detailed usage of Jackson_ Jackson quick start

First, three notes are introduced: @JsonAutoDetect (method/field): acts on a method or field to indicate that the method or field with the annotation is ignored when generating json @JsonIgnore filters attributes that do not need to be converted to json @JsonIgnoreProperties is mainly used to filter out some unnecessary properties The above ...

Posted by szz on Sun, 15 May 2022 07:05:46 +0300

SpringMVC method return value type of Day25SSM

Introduction to the return value of the processor (1) Servlet returns the result to the browser Forwarding: with data Redirect: without data Asynchronous: json data is sent to the js of the page, and the js organizes the label display The code written in the Servlet to respond to the browser must call the response (2) The method of springmv ...

Posted by nokicky on Thu, 12 May 2022 03:12:17 +0300

jt project summary draft

Detailed business code introduction of jt project 1) Business introduction: 1.1) anonymous access ~~~~ Users access jt.com via Com enters the JT home page. At this time, it is an anonymous user. If the user visits the shopping cart module or order module, the interceptor will intercept this request and redirect it to the user login page. Speci ...

Posted by deepermethod on Sat, 07 May 2022 05:08:26 +0300

One click capture the recruitment information of dragnet and boss direct employment (routine operation, Selenium is not borrowed)

I have something to say: for most e-commerce users, it is self-evident that their information is stolen and timely. Similarly, their anti crawling mechanism is quite in place. The common anti crawling means encountered here are nothing more than cookies and refer fields. The information dynamically loaded by cookies is particularly disgusting. ...

Posted by jweissig on Thu, 05 May 2022 23:55:01 +0300

The essential difference between Jackson's @ JsonFormat and @ DateTimeFormat

1. Problems Two problems are often encountered in front and back-end interaction during development: 1. When the back end returns data to the front end, the Date attribute in the moudel object needs to be formatted and displayed to the front end (for example, formatted as yyyy MM DD HH: mm: SS). 2. When the front end passes parameters to the ...

Posted by Jezza on Thu, 05 May 2022 02:25:32 +0300