JFinal ajax 跨越请求 jsonp

来源：互联网发布：js object 属性个数编辑：程序博客网时间：2024/04/30 14:24

<p>通过JFinal 框架，ajax跨域请求。</p><p>后台代码：</p><p><pre name="code" class="java"> public void dologin() {                    JSONObject json = new JSONObject();        Subject subject = SecurityUtils.getSubject();        UsernamePasswordToken token = new UsernamePasswordToken(getPara("account"),                EncryptionKit.md5Encrypt(getPara("password")));        try {            // 4、登录，即身份验证            subject.login(token);            String from = getPara("from");            String findSql = "(1=1) and ";            // 获取信息            String account = token.getUsername();            if (account != null)                findSql += "account like '" + account + "' and ";            findSql += " (1=1);";            SysUser data_need = SysUser.dao.where(findSql).get(0);                       int Id = data_need.getInt("id");            json.put("id", Id);            json.put("account", Account);            if ("1".equals(is_app)) {            //app端登录session不过期            subject.getSession(true).setTimeout(-1);            renderJson("jsonpCallback({\"data\":"+json.toJSONString()+"})");          //      renderJson(putjson("0", data, "success"));                                        } else {            subject.getSession(true).setTimeout(60*60*1000);                if (StringKit.isBlank(from))                    redirect("/");                else {                    redirect(from);                }            }        } catch (AuthenticationException e) {            // 5、身份验证失败            if ("1".equals(is_app)) {                           renderJson(putjson("330", "", "failed"));            } else {                alertAndGoback("用户名或密码错误，请重新登录");            }        }    }

前台代码：

function doLogin(account,password){$.ajax({url : "http://localhost:10080/Passport/dologin",//baseURLdata : {is_app : 1,account :  account,password : password,},type : "post",//crossDomain: true,dataType : "jsonp",jsonp : "callback",jsonpCallback:"jsonpCallback",success : function(data) {var temp = (data.data.id);location.href="http://www.baidu.com";},error : function(XMLHttpRequest, textStatus, errorThrown) {alert(XMLHttpRequest.status);return false;}    });}

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