datagrid中,显示undefined的解决方法
在get函数中,将为null的值返回空的字符串
1 public class TestModel { 2 3 private String keynumber; 4 5 public String getKeynumber() { 6 return this.keynumber == null ? "" : this.keynumber.trim(); 7 } 8 9 public void setKeynumber(String keynumber) { 10 this.keynumber = keynumber == null ? null : keynumber.trim(); 11 } 12 13 }