Various conversion methods for dealing with JSON in Java (recommended)

JSON, namely JavaScript object naming, is a lightweight data exchange format, which is very suitable for the interaction between server and JavaScript. This article will quickly explain the JSON format, and demonstrate how to process JSON format data on the client and server side through code examples.

JSON required packages:

commons-httpclient-3.1. jar commons-lang-2.4. jar commons-logging-1.1. 1.jar json-lib-2.2. 3-jdk13. jar ezmorph-1.0. 6.jar commons-collections-3.2. 1.jar

The Java. XML file appears Lang.noclassdeffounderror: Net / SF / ezmorph / Morpher error because ezmorph. Is not imported The jar file or version is incorrect.

The Java. XML file appears Lang.noclassdeffounderror: org / Apache / commons / collections / map / listorderedmap the error is because commons collections were not imported The jar file or version is incorrect.

1. Conversion between Java sets and JSON sets

1. Convert Java set to JSON set

Key class: jsonarray jsonarray = jsonarray fromObject(Object obj);

Instructions: directly transfer Java collection objects into jsonarray From object (), get a jsonarray set, and then directly use the toString () method of jsonarray to get the JSON set

Example code:

Output results:

2. Convert JSON set to Java set

Key class: jsonarray jsonarray = jsonarray fromObject(Object obj);

Instructions: pass in the JSON string object to get a jsonarray object, and then call the toCollection (jsonarray, jsonarray, class clss) method of the jsonarray object to get a collection of Java objects.

Example code:

Output results:

2. Java implementation of XML and JSON mutual conversion method

1. Convert XML to JSON

2. Convert JSON to XML

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