我用ajax请求本地的jsonp文件为什么会没反应

$.ajax({
    type: "get",
    url: "http://127.0.0.1:8080/jsonp.txt",
    cache: false,
    dataType: "jsonp",
    jsonp:"fn1",
    success: function(data) {
         alert(data);
    },
    error: function() {
         alert("出错");
    }
});

----jsonp.txt----            
fn1({"opensearch:totalResults":{"$t":"1230"},"opensearch:startIndex":{"$t":"1"},"opensearch:itemsPerPage":{"$t":"10"},"entry":[{"category":{"@scheme":"http:\/\/www.douban.com\/2007#kind","@term":"http:\/\/www.douban.com\/2007#book"},"author":[{"name":{"$t":"克罗克福特"}}],"title":{"$t":"JavaScript"},"link":[{"@rel":"self","@href":"http:\/\/api.douban.com\/book\/subject\/3332698"},{"@rel":"alternate","@href":"http:\/\/book.douban.com\/subject\/3332698\/"},{"@rel":"image","@href":"http:\/\/img3.douban.com\/spic\/s3400022.jpg"},{"@rel":"mobile","@href":"http:\/\/m.douban.com\/book\/subject\/3332698\/"}],"db:attribute":[{"$t":"7564114479","@name":"isbn10"},{"$t":"9787564114473","@name":"isbn13"},{"$t":"克罗克福特","@name":"author"},{"$t":"28.00元","@name":"price"},{"$t":"东南大学出版社","@name":"publisher"},{"$t":"2009-1","@name":"pubdate"}],"id":{"$t":"http:\/\/api.douban.com\/book\/subject\/3332698"},"gd:rating":{"@min":0,"@numRaters":58,"@average":"9.1","@max":10}},{"category":{"@scheme":"http:\/\/www.douban.com\/2007#kind","@term":"http:\/\/www.douban.com\/2007#book"},"author":[{"name":{"$t":"[美] Nicholas C. Zakas"}}],"title":{"$t":"JavaScript高级程序设计（第3版）"},"link":[{"@rel":"self","@href":"http:\/\/api.douban.com\/book\/subject\/10546125"},{"@rel":"alternate","@href":"http:\/\/book.douban.com\/subject\/10546125\/"},{"@rel":"image","@href":"http:\/\/img3.douban.com\/spic\/s8958650.jpg"},{"@rel":"mobile","@href":"http:\/\/m.douban.com\/book\/subject\/10546125\/"}],"db:attribute":[{"$t":"7115275793","@name":"isbn10"},{"$t":"9787115275790","@name":"isbn13"},{"$t":"李松峰","@name":"translator"},{"$t":"曹　力","@name":"translator"},{"$t":"[美] Nicholas C. Zakas","@name":"author"},{"$t":"99.00元","@name":"price"},{"$t":"人民邮电出版社","@name":"publisher"},{"$t":"2012-3-29","@name":"pubdate"}],"id":{"$t":"http:\/\/api.douban.com\/book\/subject\/10546125"},"gd:rating":{"@min":0,"@numRaters":691,"@average":"9.3","@max":10}},{"category":{"@scheme":"http:\/\/www.douban.com\/2007#kind","@term":"http:\/\/www.douban.com\/2007#book"},"author":[{"name":{"$t":"Douglas Crockford"}}],"title":{"$t":"JavaScript语言精粹"},"link":[{"@rel":"self","@href":"http:\/\/api.douban.com\/book\/subject\/3590768"},{"@rel":"alternate","@href":"http:\/\/book.douban.com\/subject\/3590768\/"},{"@rel":"image","@href":"http:\/\/img3.douban.com\/spic\/s3651235.jpg"},{"@rel":"mobile","@href":"http:\/\/m.douban.com\/book\/subject\/3590768\/"}],"db:attribute":[{"$t":"7121084376","@name":"isbn10"},{"$t":"9787121084379","@name":"isbn13"},{"$t":"赵泽欣","@name":"translator"},{"$t":"鄢学鹍","@name":"translator"},{"$t":"Douglas Crockford","@name":"author"},{"$t":"35.00","@name":"price"},{"$t":"电子工业出版社","@name":"publisher"},{"$t":"2009年","@name":"pubdate"}],"id":{"$t":"http:\/\/api.douban.com\/book\/subject\/3590768"},"gd:rating":{"@min":0,"@numRaters":1181,"@average":"9.1","@max":10}},{"category":{"@scheme":"http:\/\/www.douban.com\/2007#kind","@term":"http:\/\/www.douban.com\/2007#book"},"author":[{"name":{"$t":"Jeremy Keith"}}],"title":{"$t":"JavaScript DOM编程艺术"},"link":[{"@rel":"self","@href":"http:\/\/api.douban.com\/book\/subject\/1921890"},{"@rel":"alternate","@href":"http:\/\/book.douban.com\/subject\/1921890\/"},{"@rel":"image","@href":"http:\/\/img3.douban.com\/spic\/s1958902.jpg"},{"@rel":"mobile","@href":"http:\/\/m.douban.com\/book\/subject\/1921890\/"}],"db:attribute":[{"$t":"7115139210","@name":"isbn10"},{"$t":"9787115139214","@name":"isbn13"},{"$t":"杨涛","@name":"translator"},{"$t":"王建桥","@name":"translator"},{"$t":"杨晓云","@name":"translator"},{"$t":"Jeremy Keith","@name":"author"},{"$t":"39.00元","@name":"price"},{"$t":"人民邮电出版社","@name":"publisher"},{"$t":"2006年12月","@name":"pubdate"}],"id":{"$t":"http:\/\/api.douban.com\/book\/subject\/1921890"},"gd:rating":{"@min":0,"@numRaters":1004,"@average":"8.7","@max":10}},{"category":{"@scheme":"http:\/\/www.douban.com\/2007#kind","@term":"http:\/\/www.douban.com\/2007#book"},"author":[{"name":{"$t":"Nicholas C. Zakas"}}],"title":{"$t":"JavaScript高级程序设计"},"link":[{"@rel":"self","@href":"http:\/\/api.douban.com\/book\/subject\/1869705"},{"@rel":"alternate","@href":"http:\/\/book.douban.com\/subject\/1869705\/"},{"@rel":"image","@href":"http:\/\/img4.douban.com\/spic\/s1888787.jpg"},{"@rel":"mobile","@href":"http:\/\/m.douban.com\/book\/subject\/1869705\/"}],"db:attribute":[{"$t":"7115152098","@name":"isbn10"},{"$t":"9787115152091","@name":"isbn13"},{"$t":"曹力","@name":"translator"},{"$t":"张欣","@name":"translator"},{"$t":"Nicholas C. Zakas","@name":"author"},{"$t":"59.00元","@name":"price"},{"$t":"人民邮电出版社","@name":"publisher"},{"$t":"2006年9月","@name":"pubdate"}],"id":{"$t":"http:\/\/api.douban.com\/book\/subject\/1869705"},"gd:rating":{"@min":0,"@numRaters":955,"@average":"8.6","@max":10}},{"category":{"@scheme":"http:\/\/www.douban.com\/2007#kind","@term":"http:\/\/www.douban.com\/2007#book"},"author":[{"name":{"$t":"David Flanagan"}}],"title":{"$t":"JavaScript 权威指南"},"link":[{"@rel":"self","@href":"http:\/\/api.douban.com\/book\/subject\/1232061"},{"@rel":"alternate","@href":"http:\/\/book.douban.com\/subject\/1232061\/"},{"@rel":"image","@href":"http:\/\/img3.douban.com\/spic\/s1504052.jpg"},{"@rel":"mobile","@href":"http:\/\/m.douban.com\/book\/subject\/1232061\/"}],"db:attribute":[{"$t":"7111110919","@name":"isbn10"},{"$t":"9787111110910","@name":"isbn13"},{"$t":"张铭泽","@name":"translator"},{"$t":"等","@name":"translator"},{"$t":"David Flanagan","@name":"author"},{"$t":"99.00","@name":"price"},{"$t":"机械工业出版社","@name":"publisher"},{"$t":"2003-1-1","@name":"pubdate"}],"id":{"$t":"http:\/\/api.douban.com\/book\/subject\/1232061"},"gd:rating":{"@min":0,"@numRaters":687,"@average":"8.7","@max":10}},{"category":{"@scheme":"http:\/\/www.douban.com\/2007#kind","@term":"http:\/\/www.douban.com\/2007#book"},"author":[{"name":{"$t":"弗拉纳根"}}],"title":{"$t":"JavaScript权威指南"},"link":[{"@rel":"self","@href":"http:\/\/api.douban.com\/book\/subject\/2228378"},{"@rel":"alternate","@href":"http:\/\/book.douban.com\/subject\/2228378\/"},{"@rel":"image","@href":"http:\/\/img3.douban.com\/spic\/s5860151.jpg"},{"@rel":"mobile","@href":"http:\/\/m.douban.com\/book\/subject\/2228378\/"}],"db:attribute":[{"$t":"7111216326","@name":"isbn10"},{"$t":"9787111216322","@name":"isbn13"},{"$t":"李强","@name":"translator"},{"$t":"弗拉纳根","@name":"author"},{"$t":"109.00元","@name":"price"},{"$t":"机械工业","@name":"publisher"},{"$t":"2007-8","@name":"pubdate"}],"id":{"$t":"http:\/\/api.douban.com\/book\/subject\/2228378"},"gd:rating":{"@min":0,"@numRaters":616,"@average":"8.9","@max":10}},{"category":{"@scheme":"http:\/\/www.douban.com\/2007#kind","@term":"http:\/\/www.douban.com\/2007#book"},"author":[{"name":{"$t":"麦卡劳(Alex MacCaw)"}}],"title":{"$t":"基于MVC的JavaScript Web富应用开发"},"link":[{"@rel":"self","@href":"http:\/\/api.douban.com\/book\/subject\/10733304"},{"@rel":"alternate","@href":"http:\/\/book.douban.com\/subject\/10733304\/"},{"@rel":"image","@href":"http:\/\/img4.douban.com\/spic\/s27269298.jpg"},{"@rel":"mobile","@href":"http:\/\/m.douban.com\/book\/subject\/10733304\/"}],"db:attribute":[{"$t":"7121109565","@name":"isbn10"},{"$t":"9787121109560","@name":"isbn13"},{"$t":"李晶","@name":"translator"},{"$t":"张散集","@name":"translator"},{"$t":"麦卡劳(Alex MacCaw)","@name":"author"},{"$t":"59.00元","@name":"price"},{"$t":"电子工业出版社","@name":"publisher"},{"$t":"2012-5","@name":"pubdate"}],"id":{"$t":"http:\/\/api.douban.com\/book\/subject\/10733304"},"gd:rating":{"@min":0,"@numRaters":303,"@average":"8.4","@max":10}},{"category":{"@scheme":"http:\/\/www.douban.com\/2007#kind","@term":"http:\/\/www.douban.com\/2007#book"},"author":[{"name":{"$t":"Nicholas C.Zakas"}}],"title":{"$t":"高性能JavaScript"},"link":[{"@rel":"self","@href":"http:\/\/api.douban.com\/book\/subject\/5362856"},{"@rel":"alternate","@href":"http:\/\/book.douban.com\/subject\/5362856\/"},{"@rel":"image","@href":"http:\/\/img3.douban.com\/spic\/s6245861.jpg"},{"@rel":"mobile","@href":"http:\/\/m.douban.com\/book\/subject\/5362856\/"}],"db:attribute":[{"$t":"7121119323","@name":"isbn10"},{"$t":"9787121119323","@name":"isbn13"},{"$t":"丁琛","@name":"translator"},{"$t":"赵泽欣","@name":"translator"},{"$t":"Nicholas C.Zakas","@name":"author"},{"$t":"49.00元","@name":"price"},{"$t":"电子工业出版社","@name":"publisher"},{"$t":"2010-11","@name":"pubdate"}],"id":{"$t":"http:\/\/api.douban.com\/book\/subject\/5362856"},"gd:rating":{"@min":0,"@numRaters":342,"@average":"9.0","@max":10}},{"category":{"@scheme":"http:\/\/www.douban.com\/2007#kind","@term":"http:\/\/www.douban.com\/2007#book"},"author":[{"name":{"$t":"[英] Jeremy Keith"}},{"name":{"$t":"[加] Jeffrey Sambells"}}],"title":{"$t":"JavaScript DOM编程艺术 （第2版）"},"link":[{"@rel":"self","@href":"http:\/\/api.douban.com\/book\/subject\/6038371"},{"@rel":"alternate","@href":"http:\/\/book.douban.com\/subject\/6038371\/"},{"@rel":"image","@href":"http:\/\/img3.douban.com\/spic\/s4677623.jpg"},{"@rel":"mobile","@href":"http:\/\/m.douban.com\/book\/subject\/6038371\/"}],"db:attribute":[{"$t":"7115249997","@name":"isbn10"},{"$t":"9787115249999","@name":"isbn13"},{"$t":"杨涛","@name":"translator"},{"$t":"王建桥","@name":"translator"},{"$t":"杨晓云 等","@name":"translator"},{"$t":"[英] Jeremy Keith","@name":"author"},{"$t":"[加] Jeffrey Sambells","@name":"author"},{"$t":"49.00元","@name":"price"},{"$t":"人民邮电出版社","@name":"publisher"},{"$t":"2011-4","@name":"pubdate"}],"id":{"$t":"http:\/\/api.douban.com\/book\/subject\/6038371"},"gd:rating":{"@min":0,"@numRaters":606,"@average":"8.7","@max":10}}],"title":{"$t":"搜索 javascript 的结果"}});