Spring中数据绑定的两种方式（BeanWrapperImpl或者DataBinder）-白红宇

import org.apache.shiro.authc.AuthenticationToken;import org.springframework.beans.*;import org.springframework.validation.DataBinder;import java.util.HashMap;import java.util.Map;/** * Version: 1.0 */public class StatelessToken implements AuthenticationToken {    private String username;    private Map
      
        params;    private String clientDigest;    public StatelessToken(String username,  Map
       
         params, String clientDigest) {        this.username = username;        this.params = params;        this.clientDigest = clientDigest;    }    public String getUsername() {        return username;    }    public void setUsername(String username) {        this.username = username;    }    public  Map
        
          getParams() {        return params;    }    public void setParams( Map
         
           params) {        this.params = params;    }    public String getClientDigest() {        return clientDigest;    }    public void setClientDigest(String clientDigest) {        this.clientDigest = clientDigest;    }    @Override    public Object getPrincipal() {       return username;    }    @Override    public Object getCredentials() {        return clientDigest;    }    public static void main(String[] args) {    }    public static void test1() {        StatelessToken token = new StatelessToken(null, null, null);        BeanWrapperImpl beanWrapper = new BeanWrapperImpl(token);        beanWrapper.setPropertyValue(new PropertyValue("username", "hjzgg"));        System.out.println(token.getUsername());    }    public static void test2() {        StatelessToken token = new StatelessToken(null, null, null);        DataBinder dataBinder = new DataBinder(token);        Map
          
            params = new HashMap<>(); params.put("username", "hjzgg"); PropertyValues propertyValues = new MutablePropertyValues(params); dataBinder.bind(propertyValues); System.out.println(token.getUsername()); }}