1 字符串数组

1.1 页面：

var ids = [];

for (var i = 0 ;i < rows.length; i++) {

var row = rows[i];

ids.push(row.id);

}

$.ajax({

url : ctxPath+'/signAction.do?method=delete',

data : {ids: ids},

dataType : 'json',

success : function(res) {

var type = 'info';

 if (res.success) {

 onlineUsersTable.ylzgrid("query");

 type = 'success';

 }

 $.ylzmessagebox.alert({type:type,content:res.msg});

},

error : function(xhr, msg, e) {

alert('系统异常'+msg)

}

});

1.2 后端：

String [] ids = request.getParameterValues("ids[]");

2 对象数组

2.1 页面

<link rel="stylesheet" type="text/css" href="<%=ctxPath %>/js/easyui-1.4.2/themes/default/easyui.css">

<link rel="stylesheet" type="text/css" href="<%=ctxPath %>/js/easyui-1.4.2/themes/icon.css">

<script type="text/javascript" src="<%=ctxPath %>/js/easyui-1.4.2/jquery.min.js"></script>

<script type="text/javascript" src="<%=ctxPath %>/js/easyui-1.4.2/jquery.easyui.min.js"></script>

<script type="text/javascript" src="<%=ctxPath %>/js/easyui/locale/easyui-lang-zh_CN.js"></script>

<link rel="stylesheet" type="text/css" href="<%=ctxPath %>/js/layui/css/layui.css" media="all">

<script type="text/javascript" src="<%=ctxPath %>/js/layui/layui.js"></script>

function updatePrintFun () { // 设置打印状态

var expresslist = new Array();

var rows = $('#express_grid').datagrid('getSelections');

if (rows.length > 0) {

layer.confirm('请设置'+expresslist.length+'条运单打印状态', {icon: 3, title:'提示', btn: ['已打印','未打印']},

function() { // 已打印

setPrintAjax(rows, '1');

},function(){ // 未打印

setPrintAjax(rows, '0');

});

} else {

layer.msg('请先选中一条记录', {icon: 6});

}

}

function setPrintAjax(rows,ifprint) { // 设置打印状态ajax请求

var url ="<%=ctxPath%>/expressAction.do?method=setIfPrint";

jQuery.ajax({

type: 'POST',

dataType: "json",

data: {"rows":rows,c_ifprint:ifprint},

url:url,

success : function(json) {

layer.alert(json.msg,{icon:1,skin: 'layer-ext-moon' //该皮肤由layer.seaning.com友情扩展

});

if (json.success) searchFun();

},

error : function(xhr, errmsg, e) {

alert("服务器异常.." + errmsg);

}

});

}

2.2 servlet获取参数

Map<String, String[]> map = request.getParameterMap(); // 所有参数

List<Map<String,String>> list = new ArrayList<>(); // 转成数组

for (Map.Entry<String,String[]> e : map.entrySet()) {

String key = e.getKey();

String val = e.getValue()[0];

System.err.println(e.getKey() + "=" + e.getValue()[0]);

int idx1 = key.indexOf("[");

if (idx1 == -1) { // 非数组参数，如method=setIfPrint

if ("c_ifprint".equalsIgnoreCase(key)) {

ifprint = val;

}

continue;

}

int index = Integer.valueOf(key.substring(idx1 + 1, key.indexOf("]")));

Map<String, String> thisMap = new HashMap<>();

String thisKey = key.substring(key.lastIndexOf("[") + 1, key.lastIndexOf("]"));

thisMap.put(thisKey, val);

if (index >= list.size()) { // 不存在

list.add(thisMap);

} else {

Map<String,String> indexMap = list.get(index);

thisMap.putAll(indexMap); // 复制

list.set(index, thisMap);

}

}

System.out.println(list);