jsonp跨域设置cookie以及获取cookie

A项目：

<script type="text/javascript">

jQuery(document).ready(function(){

     $.ajax({

        type : "get",

        async:false,

        url : "http://www.b.com/user/checkUserName.htm",

        dataType : "jsonp",

        jsonp: "callback",//传递给请求处理程序或页面的，用以获得jsonp回调函数名的参数名(默认为:callback)

        jsonpCallback:"successCallback",//自定义的jsonp回调函数名称，默认为jQuery自动生成的随机函数名

        data: "", //请求数据   

        timeout:2000,

        success:function(data){

            if(data.retCode!="" &amp;&amp; data.retCode!="1" ){

              window.location="${base}/login/ssoLogin.jhtml?data="+data.body.data;

            }else{

                window.location="${base}/index.jhtml";

            }

        },

        error:function(){

            window.location="${base}/index.jhtml";

        }

    }); 

});

 

</script>

 

 

1.请求B项目为servlet，获取cookie，checkUserName为：

 

 

protected void processGet(HttpServletRequest request,

HttpServletResponse response, ServiceSession serviceSession)

throws Throwable {

AppData  data=new AppData(); 

Map&lt;string object&gt; bodyMap=new LinkedHashMap&lt;string object&gt;();

PrintWriter out = response.getWriter();

response.setContentType("text/javascript");

response.setCharacterEncoding("UTF-8");

try {

String cookieValue = "";

Cookie[] cookies = request.getCookies();

if(cookies != null){

for(Cookie cookie : cookies) {

if(cookie.getName().equals(Constant.cookieName)) {

cookieValue = cookie.getValue();

break;

}

}

}

response.setHeader("Content-type", "text/javascript");

response.setHeader("Access-Control-Allow-Origin","*");  //支持全域名访问，不安全，部署后需要固定限制为客户端网址

response.setHeader("Access-Control-Allow-Methods","GET,OPTIONS,DELETE"); //支持的http 动作

response.setHeader("Access-Control-Allow-Headers","x-requested-with,content-type");  //响应头 请按照自己需求添加。

response.setHeader("P3P","CP=CURa ADMa DEVa PSAo PSDo OUR BUS UNI PUR INT DEM STA PRE COM NAV OTC NOI DSP COR");

if(cookieValue!=""){

data.setRetCode("0");

bodyMap.put("data", cookieValue);

data.setBody(bodyMap);

}else{

data.setRetCode("1");

}

out.print("successCallback("+JSON.toJSONString(data)+")");

} catch (Exception e) {

e.printStackTrace();

}

 

}

 

 

B项目访问A:

 

<script type="text/javascript">

$(document).ready(function(){

alert(getCookie("FRONT"));

if(getCookie("FRONT")==""){

  $.ajax({

      type : "get",

      async:false,

      url : "http://starbhhc.wicp.net/FYJF/ssoLogin/checkUserName.jhtml",

      dataType : "jsonp",

      jsonp: "callback",//传递给请求处理程序或页面的，用以获得jsonp回调函数名的参数名(默认为:callback)

      jsonpCallback:"successCallback",//自定义的jsonp回调函数名称，默认为jQuery自动生成的随机函数名

      data: "", //请求数据   

      timeout:2000,

      success:function(data){

      if(data.retCode!="" &amp;&amp; data.retCode!="1"){

      setCookie("FRONT",data.body.data);

      window.location="http://117.39.28.230:8102/user/platformLogin.htm?data="+data.body.data;

          }

      },

      error:function(){

      }

  });

}

  

});

 

 

function setCookie(name,value)

{

document.cookie=name+'='+value;

}

 

function getCookie(name)

{

var arr=new Array();

arr=document.cookie.split(";");

var i=0;

for(i=0; i&lt;arr.length;i++)

{

arr2=arr[i].split("=");

if(arr2[0]==name)

{

return arr2[1];

}

}

  return '';

}

 

$(document).ready(function(){

 $('.flexslider').flexslider();

})

</script>

 

 

A项目为springMVC，获取A的cookie， checkUserName类为：

@RequestMapping(value = "/checkUserName", method = RequestMethod.GET)

public @ResponseBody void checkUserName(HttpServletRequest request,HttpServletResponse response) {

AppData  data=new AppData(); 

Map&lt;string object&gt; bodyMap=new LinkedHashMap&lt;string object&gt;();

String cookieValue = "";

try {

Cookie[] cookies = request.getCookies();

if(cookies != null){

for(Cookie cookie : cookies) {

if(cookie.getName().equals(Constant.cookieName)) {

cookieValue = cookie.getValue();

break;

}

}

}

response.setHeader("Content-type", "text/javascript");

response.setHeader("Access-Control-Allow-Origin","*");  //支持全域名访问，不安全，部署后需要固定限制为客户端网址

response.setHeader("Access-Control-Allow-Methods","GET,OPTIONS,DELETE"); //支持的http 动作

response.setHeader("Access-Control-Allow-Headers","x-requested-with,content-type");  //响应头 请按照自己需求添加。

response.setHeader("P3P","CP=CURa ADMa DEVa PSAo PSDo OUR BUS UNI PUR INT DEM STA PRE COM NAV OTC NOI DSP COR");

if(cookieValue!=""){

data.setRetCode("0");

bodyMap.put("data", cookieValue);

data.setBody(bodyMap);

}else{

data.setRetCode("1");

}

response.getWriter().print("successCallback("+JSON.toJSONString(data)+")");   

} catch (IOException e) {

e.printStackTrace();

} 

 

}