fastjson 使用方法详细介绍

SVN:http://code.alibabatech.com/svn/fastjson/trunk/
WIKI:http://code.alibabatech.com/wiki/display/FastJSON/Home
Issue Tracking:http://code.alibabatech.com/jira/browse/FASTJSON

<repository>
 <id>opensesame</id>
 <name>Alibaba OpenSource Repsoitory</name>
 <url>http://code.alibabatech.com/mvn/releases/</url>
 <snapshots>
 <enabled>false</enabled>
 </snapshots>
</repository>

<dependency>
 <groupId>com.alibaba</groupId>
 <artifactId>fastjson</artifactId>
 <version>1.0.4</version>
</dependency>

import com.alibaba.fastjson.JSON;
public static final Object parse(String text); // 把JSON文本parse为JSONObject或者JSONArray
public static final JSONObject parseObject(String text)； // 把JSON文本parse成JSONObject
public static final <T> T parseObject(String text, Class<T> clazz); // 把JSON文本parse为JavaBean
public static final JSONArray parseArray(String text); // 把JSON文本parse成JSONArray
public static final <T> List<T> parseArray(String text, Class<T> clazz); //把JSON文本parse成JavaBean集合
public static final String toJSONString(Object object); // 将JavaBean序列化为JSON文本
public static final String toJSONString(Object object, boolean prettyFormat); // 将JavaBean序列化为带格式的JSON文本
public static final Object toJSON(Object javaObject); 将JavaBean转换为JSONObject或者JSONArray。

public class User {
 private Long id;
 private String name;
 public Long getId() { return id; }
 public void setId(Long id) { this.id = id; }
 public String getName() { return name; }
 public void setName(String name) { this.name = name; }
}
public class Group {
 private Long id;
 private String name;
 private List<User> users = new ArrayList<User>();
 public Long getId() { return id; }
 public void setId(Long id) { this.id = id; }
 public String getName() { return name; }
 public void setName(String name) { this.name = name; }
 public List<User> getUsers() { return users; }
 public void setUsers(List<User> users) { this.users = users; }
}

import com.alibaba.fastjson.JSON;
Group group = new Group();
group.setId(0L);
group.setName("admin");
User guestUser = new User();
guestUser.setId(2L);
guestUser.setName("guest");
User rootUser = new User();
rootUser.setId(3L);
rootUser.setName("root");
group.getUsers().add(guestUser);
group.getUsers().add(rootUser);
String jsonString = JSON.toJSONString(group);
System.out.println(jsonString);

Group group2 = JSON.parseObject(jsonString, Group.class);