private String orderNumber;
public String getOrderNumber() {
return orderNumber;
}
public void setOrderNumber(String orderNumber) {
this.orderNumber = orderNumber;
}
/* System.out.println(orderNumber);
这为啥不行odfo.setOrderNumber(orderNumber);*/
odfo.setOrderNumber(orderNumber);
报错如下
四月 21, 2017 12:59:16 下午 org.apache.catalina.core.StandardWrapperValve invoke
严重: Servlet.service() for servlet [dispatcher] in context with path [] threw exception [Request processing failed; nested exception is java.lang.NullPointerException] with root cause
java.lang.NullPointerException