Java
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Java – web services using Google App Engine
I see that Google App Engine can host web applications that will return HTML and so on But what about web services tha…… -
Java – get internal properties of LDAP objects
I tried to get LDAP user internal attributes, but I couldn't find how to get them DirContext ctx = this.getDirContext(…… -
Java – how do you convince other developers not to ignore exceptions?
I recently encountered an error in an application taken over by another developer I debugged the reason. After more th…… -
Detailed steps for Java connection to MySQL database
This article mainly takes MySQL as an example to talk about how Java connects to the database. The specific contents a…… -
On overloading of Java methods
Method overloading means that multiple methods with the same name but different parameters can be defined in a class. …… -
Java parsing PHP function JSON_ Encode Unicode encoding problem
During Android development, there is a coding problem when interfacing with the server-side interface. The data obtain…… -
Example of basic usage of JSON conversion library gson in Java
GitHub page for downloading and deploying gson: https://github.com/google/gson Before working with the gson API, you n…… -
Java URL to get PHP JSON data
Main.class import java.io.BufferedInputStream; import java.io.IOException; import java.io.InputStream; import…… -
Greedy pattern matching of regular expressions in Java programs
Greedy mode: The quantity indicator defaults to greedy mode unless otherwise indicated. The expression of greedy mode …… -
Detailed explanation of character encoding format in Java
1、 Foreword When analyzing comparable and comparator, the CompareTo method of string class is analyzed. The bottom la…… -
Detailed construction process of java + mybatis + MySQL development environment
Main construction process 1. pom. Mybatis and database dependency are added to the XML file. Here, MySQL is used: 2. C…… -
Using Java and websocket to realize the example code of web chat room
Before introducing the text, let's introduce the background and principle of websocket: background In the browser, onl…… -
Gson is a complete tutorial for realizing the mutual conversion between Java objects and JSON format objects
Gson is a Java library used to realize the mutual conversion between JSON and Java objects. Gson is a hosted https://g…… -
Analysis of Excel instance using POI in Java
This example shares the specific code of Java using POI to operate Excel for your reference. The specific contents are…… -
JSP student information management system
This example shares the source code of JSP student information management system, JSP + servlet + JavaBean + jdbc + MY…… -
Detailed explanation of advanced examples of converting Java objects into JSON objects using gson Library
Common conversion operations for list, map and other structures can basically meet most of our needs, but sometimes th…… -
Simple example code of reading excel from Java Web
Directory structure: Data. Xls data: Background page: Data. java Front page: Index. jsp: Operation results: The above …… -
Example of Java reading excel table documents using Apache POI Library
Apache POI is a free, open source, cross platform Java API written in Java. Apache POI provides Java programs with the…… -
Gson implements JSON serialization and deserialization of Java objects
Download gson from GitHub: https://github.com/google/gson The application of gson mainly includes two conversion funct…… -
On the definition of classes and objects in Java programming
1. What is class? A: classes are objective, abstract and conceptual things. 2. What's the object? A: the object is con…… -
Use the gson library to convert the map key value corresponding structure object in Java into JSON
The storage structure of map is in the form of key / value. Key and value can be ordinary types, JavaBeans written by …… -
Example of Java using dichotomy to find and sort
To realize the dichotomy search, the array needs to be an orderly sequence. The dichotomy search is more efficient tha…… -
Detailed explanation of memory leakage in Java
A key advantage of the Java language is its memory management mechanism. You just create objects, and Java's garbage c…… -
Method example of converting Java’s list structure to JSON through gson Library
I found Google's gson. Because I knew something about protocol buf before, I began to use gson with some curiosity. Gi…… -
On the processing operation of JSON format in Java background
1. Convert the object into a JSON string, and the return value is a JSON string 2. Convert JSON string to entity objec…… -
Detailed explanation of the use of final keyword in java object-oriented programming
In Java, the final keyword is used to declare that objects are immutable. The objects here include variables, methods …… -
Fuzzy query instance sharing in Java message management system
This paper shares a message management system based on MVC + Dao, including addition, deletion, modification and query…… -
Examples of Java simulating single linked list and double ended linked list data structures
Analog single linked list Linear table: linear table (also known as sequential table) is the most basic, simplest and …… -
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Java connection MySQL database implementation code
This example shares the code of Java connecting to MySQL database for your reference. The specific contents are as fol…… -
Java random class usage details
Random class (Java. Util) The random algorithm implemented in random class is pseudo-random, that is, regular random. …… -
Java uses regular to grab web mailboxes
Use regular to capture online mailboxes This is the website we need to capture. Implementation idea: 1. Using Java net……