public String execute() throws Exception {
HttpServletRequest request = ServletActionContext.getRequest();
HttpServletResponse response = ServletActionContext.getResponse();
response.setContentType("text/html;charset=UTF-8");
response.setHeader("Cache-Control", "no-cache");
ipImpl iI = new ipImpl();
ipbean ipjb = new ipbean();
String startDate = java.net.URLDecoder.decode(request.getParameter("startDate"), "UTF-8");
String endDate = java.net.URLDecoder.decode(request.getParameter("endDate"), "UTF-8");
List<ipbean> ipList = iI.queryIp(startDate, endDate);
// request.setAttribute("ipList", ipList);
Iterator<ipbean> itip = ipList.iterator();
JSONArray ja = new JSONArray();
while (itip.hasNext()) {
ipjb = itip.next();
JSONObject sign = new JSONObject();
sign.put("id", ipjb.getId());
sign.put("ip", ipjb.getStr_ip());
sign.put("Date", ipjb.getStr_Date());
ja.put(sign);
}
System.out.println(ja);
return null; }
jsp页面上如何按表格格式显示获取到ja里的数据
HttpServletRequest request = ServletActionContext.getRequest();
HttpServletResponse response = ServletActionContext.getResponse();
response.setContentType("text/html;charset=UTF-8");
response.setHeader("Cache-Control", "no-cache");
ipImpl iI = new ipImpl();
ipbean ipjb = new ipbean();
String startDate = java.net.URLDecoder.decode(request.getParameter("startDate"), "UTF-8");
String endDate = java.net.URLDecoder.decode(request.getParameter("endDate"), "UTF-8");
List<ipbean> ipList = iI.queryIp(startDate, endDate);
// request.setAttribute("ipList", ipList);
Iterator<ipbean> itip = ipList.iterator();
JSONArray ja = new JSONArray();
while (itip.hasNext()) {
ipjb = itip.next();
JSONObject sign = new JSONObject();
sign.put("id", ipjb.getId());
sign.put("ip", ipjb.getStr_ip());
sign.put("Date", ipjb.getStr_Date());
ja.put(sign);
}
System.out.println(ja);
return null; }
jsp页面上如何按表格格式显示获取到ja里的数据
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<tbody id="contentTbody">
</tbody>
</table>第二步:1、将返回的json格式的数据循环写出来。
function setUserList(list, page) {
var sb = new StringBuffer();
$.each(list, function(i, item) {
sb.append('<tr>\n');
sb.append('<td align="right">').append(i+1).append('</td>\n');
sb.append('<td>').append(item.title).append('</td>\n');
sb.append('</tr>\n');
});
$("#contentTbody").html(sb.toString());
}
2、用forEach语句写出来上网搜一下就Ok了。
前台通过response.responseText 可以得到JSON 后面的处理自己看看如何读取JSON数据
response.setContentType("text/plain;charset=utf-8");
PrintWriter responseStream = response.getWriter();
responseStream.println(jsonArray);
你用的是Struts吧 ,
你可以定义 String a , b , c ; 然后给他们声称set方法
struts就能够给他们赋值了。也可以通过ServletActionContex.getContex().getRequest().getParamt..("a");
//方法名都记不清,你自己去查
@RequestMapping("/topic/by_channel.do")
public void topicsByChannel(Integer channelId, HttpServletResponse response)
throws JSONException {
JSONArray arr = new JSONArray();
if (channelId != null) {
List<CmsTopic> list = manager.getListByChannel(channelId);
JSONObject o;
for (CmsTopic t : list) {
o = new JSONObject();
o.put("id", t.getId());
o.put("name", t.getName());
arr.put(o);
}
}
ResponseUtils.renderJson(response, arr.toString());
}
/**
* 发送内容。使用UTF-8编码。
*
* @param response
* @param contentType
* @param text
*/
public static void render(HttpServletResponse response, String contentType,
String text) {
response.setContentType(contentType);
response.setHeader("Pragma", "No-cache");
response.setHeader("Cache-Control", "no-cache");
response.setDateHeader("Expires", 0);
try {
response.getWriter().write(text);
} catch (IOException e) {
log.error(e.getMessage(), e);
}
}$(function() {
submitHandler : function(form) {
$(form).ajaxSubmit( {
"success" : function(data) {
test1(data);
},
"dataType" : "json"
});
}
});
});
function test1(data){
//var jsonStr='[{"id":1,"name":"name1"},{"id":2,"name":"name2"},{"id":3,"name":"name3"},{"id":4,"name":"name4"},{"id":5,"name":"name5"}]';
var jsonStr=data;
var list=eval("("+jsonStr+")");
var tabs='<table id="tb1" border="1">';
var theads='<tr><td>ID</td><td>name</td></tr>';
var trs="";
for ( var i = 0; i < list.length; i++) {
var tr='';
tr+='<tr>';
tr+='<td>'+list[i].name+'</td>';
tr+='<td>'+list[i].name+'</td>';
tr+='</tr>';
trs+=tr;
}
tabs+=theads;
tabs+=trs;
tabs+='</table>';
alert(tabs);
var div1=document.getElementById('div1');
if(div1){
div1.innerHTML=tabs;
}
}
一般像这种我们是用ajax获得后台返回的json字符串,然后根据返回结果我们再封装,这里你稍威改一下
/**
* 发送json。使用UTF-8编码。
*
* @param response
* HttpServletResponse
* @param text
* 发送的字符串
*/
public static void renderJson(HttpServletResponse response, String text) {
render(response, "application/json;charset=UTF-8", text);
}