XMLHttpRequest 请求java部署的webservice 跨域问题

<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.0 Transitional//EN" > 
<html>
  <head>
    <title>企业列表</title>
  </head>
    
  <body  >
  </body>
</html>

<script  type="text/javascript">
var webservice = function() {
    var nameSpace = "http://ws.search.serviceinterface.ths.com"; 
    var url = "http://192.168.0.152:8082/service/ws/jsonWebService"; 
    //创建 xmlhttp 
    var xmlhttp;
    var callback;
    var createXmlHttp = function() {　　
        if (window.ActiveXObject) {　
        　　　xmlhttp = new ActiveXObject("Microsoft.XMLHTTP");　　
        }　　
        else if (window.XMLHttpRequst) {　
        　　　xmlhttp = new XMLHttpRequest();　　
        }
    };
    //回调处理 
    var setChange = function() {　　
        if (xmlhttp.readyState == 4) {
            alert(xmlhttp.status);
            alert(xmlhttp.responseText);
            if (xmlhttp.status == 200) {　
            　　alert(xmlhttp.responseText);
                returnData = {};
                if (callback) {
                    if (xmlhttp.responseText != "") {
                        var json = eval("(" + xmlhttp.responseText + ")");
                        returnData = json;
                    }
                    callback(returnData);
                }
            }　　
        }　　
    };
    //获取字符串长度 
    var getlen = function(str) {
        var bytesCount = 0;
        for (var i = 0; i < str.length; i++) {
            var c = str.charAt(i);
            if (/^[u0000-u00ff]$/.test(c)) {
                bytesCount += 1;
            } else {
                bytesCount += 2;
            }
        }
        return bytesCount;
    };　
    //获取数据串 
    var getData = function(method, str) {
        var data;
        data = "<?xml version="1.0" encoding="utf-8"?>";
        data += "<soap:Envelope xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xmlns:xsd="http://www.w3.org/2001/XMLSchema" xmlns:soap="http://schemas.xmlsoap.org/soap/envelope/">";
        data += "<soap:Body>";
        data += "<"+ method + " xmlns="" + nameSpace + "">";
        data += "<in0>402880184877f94f0148862c84530341</in0>";
        data += "<in1>8</in1>";
        data += "<in2>"+ str + "</in2>";
        data += "</" + method + ">";
        data += "</soap:Body>";
        data += "</soap:Envelope>";
        return data;
    };
    var setRequest = function(method, data) {
        createXmlHttp();
        xmlhttp.onreadystatechange = setChange;
        xmlhttp.open("POST", url, true);
        xmlhttp.setRequestHeader("Content-Type", "json; charset=utf-8");
        xmlhttp.setRequestHeader("Content-Length", getlen(data));
        xmlhttp.setRequestHeader("SOAPAction", nameSpace + method);
        xmlhttp.send(data);
    }
    return {
        postWs: function(method, data, call) {
            var data = getData(method, data);
            callback = call;
            setRequest(method, data);
        }
    }
} ();

function loadData(){
    var enterName=GetQueryString("enterName");
    var jsonStr = "{"pager":{"page":"","pageSize":"10"},"params":[{"FieldName":"STANDENTERID","Value":"","Operator":"="},{"FieldName":"ENTERID","Value":"","Operator":"="},{"FieldName":"ENTERCODE","Value":"","Operator":"="},{"FieldName":"ENTERNAME","Value":"%"+enterName+"%","Operator":"like"},{"FieldName":"CORPCODE","Value":"","Operator":"="}]}";
    webservice.postWs("RunJsonResult", jsonStr,
    function(data) {
        alert(data);
    });
}

function GetQueryString(name) {
    var reg = new RegExp("(^|&)" + name + "=([^&]*)(&|$)","i");
    var r = window.location.search.substr(1).match(reg);
    if (r!=null) return (r[2]); return null;
 }
 
 window.load=loadData();

</script>
此时存在跨域问题，回报一个无权限的访问
第一个解决方法
其它方法就是添加web引用