Jackson是一款为Java平台提供的一套数据处理类库工具，Jackson的主要功能是提供JSON解析和生成，另外，Jackson还提供额外的类库以支持处理Avro, CBOR, CSV, Smile, XML 和 YAML，功能十分强大，在Java中处理JSON数据非常不错。
下面看个简单的例子：
JSON:
{
"name" : { "first" : "Joe", "last" : "Sixpack" },
"gender" : "MALE",
"verified" : false,
"userImage" : "Rm9vYmFyIQ=="
}
model ：
public class User {
public enum Gender { MALE, FEMALE };
public static class Name {
private String _first, _last;
public String getFirst() { return _first; }
public String getLast() { return _last; }
public void setFirst(String s) { _first = s; }
public void setLast(String s) { _last = s; }
}
private Gender _gender;
private Name _name;
private boolean _isVerified;
private byte[] _userImage;
public Name getName() { return _name; }
public boolean isVerified() { return _isVerified; }
public Gender getGender() { return _gender; }
public byte[] getUserImage() { return _userImage; }
public void setName(Name n) { _name = n; }
public void setVerified(boolean b) { _isVerified = b; }
public void setGender(Gender g) { _gender = g; }
public void setUserImage(byte[] b) { _userImage = b; }
}
使用方法：
ObjectMapper mapper = new ObjectMapper(); // can reuse, share globally
User user = mapper.readValue(new File("user.json"), User.class);官方：https://github.com/FasterXML/jackson
WIKI:https://github.com/FasterXML/jackson/wiki
download : http://www.codeceo.com/article/java-json-jackson.html
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本文作者：码农网 – 小峰
