gson和bson4jackson 的简单记录

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import java.io.ByteArrayInputStream;import java.io.ByteArrayOutputStream;import java.io.FileInputStream;import java.io.FileOutputStream;import com.fasterxml.jackson.core.JsonGenerator;import com.fasterxml.jackson.databind.ObjectMapper;import com.google.gson.Gson;import de.undercouch.bson4jackson.BsonFactory;public class jack {public static void main(String ss[]) throws Exception{testuser t=new testuser();t.setId(1);t.setUsername("admin");t.setPassword("admin88888");Gson gson = new Gson();        String str = gson.toJson(t); FileOutputStream in = new FileOutputStream("c:/jack1.bin");    in.write(str.getBytes());    in.flush();    in.close();     FileOutputStream baos = new FileOutputStream("c:/jack.bin");    ObjectMapper mapper = new ObjectMapper(new BsonFactory());        mapper.writeValue(baos, t);        baos.flush();    baos.close();     FileInputStream bais = new FileInputStream("c:/jack.bin");          testuser t2 = mapper.readValue(bais, testuser.class);    t2.info();    bais.close();} }

//pojo testuser

public class testuser {     private int id;     private String username;      private String password ;        public testuser() {// TODO Auto-generated constructor stub}        public void setId(int id) {this.id = id;}    public void setPassword(String password) {this.password = password;}    public void setUsername(String username) {this.username = username;}    public int getId() {return id;}    public String getPassword() {return password;}    public String getUsername() {return username;}    public  void info()    {    System.out.println("id:"+id+":"+username+":"+password);    }}

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