Showing posts with label parse json in Salesforce. Show all posts
Showing posts with label parse json in Salesforce. Show all posts

Monday, July 25, 2016

Parse JSON in Salesforce


public class CommonJsonParser {
    public cls_Parent[] parentList;
    class cls_Parent {
        public Integer intType;
        public Double doubleType;
        public String stringType;
        public cls_Child[] childList;
    }
    class cls_Child {
        public Integer param_1;
        public String param_2;
    }
    public static CommonJsonParser parse(String json){
        return (CommonJsonParser) System.JSON.deserialize(json, CommonJsonParser.class);
    }

    public static String test() {
        String json = '{"parentList":[' + 
            '{"intType":1,"doubleType":1.5,"stringType":"String_1",' + 
            '"childList":[' + 
                '{"param_1":1,"param_2":"String_100"},' + 
                '{"param_1":5,"param_2":"String_101"}]}'+
            ',{"intType":2,"doubleType":2.5,"stringType":"String_2",' + 
            '"childList":[' + 
                '{"param_1":6,"param_2":"String_102"},' + 
                '{"param_1":2,"param_2":"String_103"},' + 
                '{"param_1":1,"param_2":"String_104"}]}]}';
        CommonJsonParser obj = parse(json);
        
        String output = '';
        
        for(cls_Parent cParent : obj.parentList) {
            output += '<br/>';
            output += '[[ Integer_Value=' + cParent.intType;
            output += ', Double_Value=' + cParent.doubleType;
            output += ', String_Value=' + cParent.stringType + ' ]]';
            
            for(cls_Child cChild: cParent.childList) {
                output += '<br/>&nbsp;&nbsp;&nbsp;&nbsp;Param_1=' + cChild.param_1;
                output += ', Param_2=' + cChild.param_2;
            }
        }
        
        return output;
    }
}
Output would be like this:

[[ Integer_Value=1, Double_Value=1.5, String_Value=String_1 ]]
    Param_1=1, Param_2=String_100
    Param_1=5, Param_2=String_101
[[ Integer_Value=2, Double_Value=2.5, String_Value=String_2 ]]
    Param_1=6, Param_2=String_102
    Param_1=2, Param_2=String_103
    Param_1=1, Param_2=String_104