* added table to device page

* request devices from js from db

src/java/com/wasteinformationserver/website/datarequests/DeviceRequest.java

@@ -0,0 +1,43 @@
+package com.wasteinformationserver.website.datarequests;
+
+import com.wasteinformationserver.db.JDCB;
+import com.wasteinformationserver.website.basicrequest.PostRequest;
+
+import java.io.IOException;
+import java.sql.ResultSet;
+import java.sql.SQLException;
+import java.util.HashMap;
+
+public class DeviceRequest extends PostRequest {
+    @Override
+    public String request(HashMap<String, String> params) {
+
+        JDCB jdcb = null;
+        try {
+            jdcb = JDCB.getInstance();
+        } catch (IOException e) {
+            e.printStackTrace();
+        }
+
+        switch (params.get("action")) {
+            case "getdevices":
+                ResultSet set = jdcb.executeQuery("SELECT * from devices");
+                StringBuilder sb = new StringBuilder("{\"data\":[");
+                try {
+                    while (set.next()) {
+                        sb.append("{\"name\":\"" + set.getString("devicename") + "\"}");
+                        if (!set.isLast()) {
+                            sb.append(",");
+                        }
+                    }
+                    sb.append("]}");
+                    return sb.toString();
+                } catch (SQLException e) {
+                    e.printStackTrace();
+                }
+
+                break;
+        }
+        return null;
+    }
+}