Hi gurus,
From a servlet I have the following 2D array example:
String myPoints = new String[5];
ArrayList myPointList = new ArrayList();
int i=0;
while i<2 {
myPoints[0]=“zero”;
myPoints[1]=“one”;
myPointList.add(myPoints);
i=i+1;
}
request.setAttribute(“myarray”, myPointList);
From the JSP, I am calling:
var test = ‘${myarray}’;
When I view the source code of the result page, what I want to see is [{“zero”, “one”}, {“zero”, “one”}] but instead I see [[Ljava.lang.String;@44f787, [Ljava.lang.String;@44f787].
Can anyone tell me how to fix this? Many thx in advance…
Because the toString on any array will return something like this Ljava.lang.String;@44f787. The toString on ArrayList returns the a more readable list. So if myPoints was an ArrayList instead of a String this will work. Otherwise you need to actually loop through array values.
You might need to write a for loop inside of your JSP to get the desired formatting.
OR, you need to extend ArrayList and implement the toString() method yourself to get the formatting that you desire. I personally don’t think that overriding the toString() method for view purposes is a good idea, but in this case it might be what you need.
I just have one last question concerning JSON in general because google has not been kind :injured:
It seems that any forward slash character is treated as an escape character. So, if I have value “a/b/c” JSON will spit it out as “a\/b\/c”. I’ve tried creating a class and overwriting the toJSONString method using the replace method to no avail… is there any quick way to not have that “\” character thrown into the string?
