Java高性能的JSON处理 Jackson

     <p>Jackson 是一个 Java 用来处理 JSON 格式数据的类库，性能非常好。</p>    <ul>     <li>Streaming (reading, writing)</li>     <li>FAST (measured to be faster than any other Java json parser and data binder)</li>     <li>Powerful (full data binding for common JDK classes as well as any Java bean class, Collection, Map or Enum)</li>     <li>Zero-dependency (does not rely on other packages beyond JDK)</li>     <li>Open Source (LGPL or AL)</li>     <li>Fully conformant</li>     <li>Extremely configurable</li>    </ul>    <p>示例：</p>    <pre class="code-java">{   <span class="code-quote">"name"</span> : { <span class="code-quote">"first"</span> : <span class="code-quote">"Joe"</span>, <span class="code-quote">"last"</span> : <span class="code-quote">"Sixpack"</span> },   <span class="code-quote">"gender"</span> : <span class="code-quote">"MALE"</span>,   <span class="code-quote">"verified"</span> : <span class="code-keyword">false</span>,   <span class="code-quote">"userImage"</span> : <span class="code-quote">"Rm9vYmFyIQ=="</span> }</pre>    <pre class="brush:java; toolbar: true; auto-links: false;">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; } }</pre>    <pre class="brush:java; toolbar: true; auto-links: false;">ObjectMapper mapper = new ObjectMapper(); // can reuse, share globallyUser user = mapper.readValue(new File("user.json"), User.class);</pre>    <p>从上面例子可看到，使用也是非常的方便。</p>    <p><strong>项目主页：</strong><a href="http://www.open-open.com/lib/view/home/1324131120328" target="_blank">http://www.open-open.com/lib/view/home/1324131120328</a></p>