HttpServletRequest对象 request.getparamter()有可能返回String[]数组,强转为String会报该错误;
解决方法:
Object obj =request.getparamter();
String val = “”;
if(obj instanceof String[]){
String[] arr = (Stirng[])obj;
val=arr[0];
}else{
val = (Stirng)obj;
}
时间:2020-01-01 16:14:45
HttpServletRequest对象 request.getparamter()有可能返回String[]数组,强转为String会报该错误;
解决方法:
Object obj =request.getparamter();
String val = “”;
if(obj instanceof String[]){
String[] arr = (Stirng[])obj;
val=arr[0];
}else{
val = (Stirng)obj;
}