功能实现:
在jsp页面中填写文本框内容,光标离开文本框,在本页面的相应地方获取数据库中改值所对应的其他数据。
servlet:
request.setCharacterEncoding(\"utf-8\"); PrintWriter out = response.getWriter(); // 调用servlet层去数据库查找是否有相同用户名 并返回到页面中的其他记录 String client_id = request.getParameter(\"client_id\"); ClientServices clientServices = new ClientServices(); try { Thread.sleep(2000); } catch (InterruptedException e) { e.printStackTrace(); } Client client = clientServices.findClientById(client_id); if (client != null) { out.print(URLEncoder.encode(client.getClient_name(), \"utf-8\")); } else { out.print(\"false\"); } out.flush(); out.close();
jquery:
$(document).ready(function() { $(\"#client_id\").blur(function() { $.ajax({ type : \'POST\', url : \'servlet/validServlet?client_id=\' + $(this).val(), data : \'client_id=\' + $(\"#client_id\").val(), success : function(msg) { if (msg == \'false\') { alert(\"没有此人\"); } else { //utf-8解码解决中文乱码 $(\"#clientInfo\").html(decodeURI(msg)); $(\"#clientInfo\").attr(\"value\", decodeURI(msg)); } } }); }); });
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