优化

src/com/mes/ui/DataUtil.java

@@ -342,8 +342,10 @@ public class DataUtil {
             BufferedReader br = new BufferedReader(new InputStreamReader(is, enconding));
             pro.load(br);
             String mes_server_ip = pro.getProperty("mes.server_ip");
-            String url = "http://"+mes_server_ip+":8980/js/a/mes/mesProductLaser/getSteelSn";
-            String params = "__ajax=json&customerSn="+customerSn;
+            String url = "http://"+mes_server_ip+":8980/js/a/mes/mesLaser/getSteelSn";
+            // customerSn 带 '+' 号，form-urlencoded 传输时 '+' 会被解码为空格，必须编码
+            String encSn = java.net.URLEncoder.encode(customerSn, "UTF-8");
+            String params = "__ajax=json&customerSn="+encSn;
             System.out.println("[查询钢印码] customerSn=" + customerSn);
             String result = doPost(url, params);
             System.out.println("[查询钢印码] result=" + result);