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<%@ page import = "java.util.* " %>
<%@ page import = "java.lang.reflect.* " %>
<%!
private String getJSonArray(Object[] objs) {
StringBuilder sb = new StringBuilder();
if (objs.length==0) {
return "[]";
}
sb.append("[ " );
int n = objs.length;
for(int i=0; i<n; i++) {
sb.append(getJSon(objs[i]));
if (i<n-1) {
sb.append(", ");
}
}
sb.append(" ]");
return sb.toString();
}
private String getJSonArraylist(ArrayList objs) {
StringBuilder sb = new StringBuilder();
if (objs.size()==0) {
return "[]";
}
sb.append("[ " );
int n = objs.size();
for(int i=0; i<n; i++) {
sb.append(getJSon(objs.get(i)));
if (i<n-1) {
sb.append(", ");
}
}
sb.append(" ]");
return sb.toString();
}
private String getJSon(Object obj) {
StringBuilder sb = new StringBuilder();
try {
Class c = obj.getClass();
Field[] fields;
fields = c.getDeclaredFields();
// { {"name": "Meier59", "mnr":12345}
sb.append("{");
int n=fields.length-1;
for(int i=0; i<n; i++) {
Field field = fields[i];
sb.append("\"");
sb.append(field.getName());
sb.append("\": ");
String s=field.getType().toString();
if (s.indexOf("String")>0) {
sb.append("\"");
sb.append(field.get(obj));
sb.append("\"");
}
else {
sb.append(field.get(obj));
}
if (i<n-1) {
sb.append(", ");
}
}
sb.append("}");
}
catch ( IllegalAccessException e) {
}
return sb.toString();
}
%>
<%@
page import = "java.text.* "
%>
<%
ArrayList<Employee> liste= new ArrayList<Employee>();
liste.add( new Employee("Smith",12345));
liste.add( new Employee("Miller",12365));
liste.add( new Employee("Brandt",12445));
liste.add( new Employee("Schmitt",14345));
// now get the JSon-String
String ergebnis = getJSonArraylist(liste);
out.println(ergebnis);
%>
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