Update sqlTest.java

sqlTest.java

@@ -21,21 +21,21 @@ public class sqlTest extends HttpServlet {
 	private static final long serialVersionUID = 1L;
 
 	protected void doGet(HttpServletRequest request, HttpServletResponse response) throws ServletException, IOException {
-		Context ctx = null;
-		Connection con = null;
-		Statement stmt = null;
-		ResultSet rs = null;
+		Context ctx = null; //context to pull var names from
+		Connection con = null; //initializes connection
+		Statement stmt = null; //initializes statement you send for sql
+		ResultSet rs = null; //initializes resultSet for sql
 		try{
-			ctx = new InitialContext();
-			DataSource ds = (DataSource) ctx.lookup("java:/comp/env/jdbc/LocalStudentAdminDB");
-			con = ds.getConnection();
-			stmt = con.createStatement();
-			rs = stmt.executeQuery("SELECT * FROM SA_Development.TERM");
+			ctx = new InitialContext(); 
+			DataSource ds = (DataSource) ctx.lookup("java:/comp/env/jdbc/LocalStudentAdminDB"); //jdbc lookup
+			con = ds.getConnection(); //connection from data source
+			stmt = con.createStatement(); //creates empty statement
+			rs = stmt.executeQuery("SELECT * FROM SA_Development.TERM"); //results from sql query
 			PrintWriter out = response.getWriter();
 
-			String resultantJSON = "{";
-			ResultSetMetaData rsmd = rs.getMetaData();
-			int columnCount = rsmd.getColumnCount();				
+			String resultantJSON = "["; //
+			ResultSetMetaData rsmd = rs.getMetaData(); //all information that isn't the result #cols #rows
+			int columnCount = rsmd.getColumnCount();
 
 			while(rs.next()){
 				String individualRow = "{";
@@ -54,7 +54,7 @@ public class sqlTest extends HttpServlet {
 				} 
 				resultantJSON += individualRow + "},";
 			}
-			resultantJSON += "}";
+			resultantJSON += "]";
 			response.setContentType("application/json");
 			out.print(resultantJSON);
 /*			response.setContentType("text/html");