网络爬虫中解析json时遇到字符中包含双引号等字符

在使用fastjson解析json时，有时会遇到json串中包含英文中的双引号，比如在评论中包含双引号的评论。

如下所示json串：

{"returncode":0,"message":"","result":{"pageindex":1,"pagecount":1,"rowcount":15,"list":[{"topicid":21376821,"topictype":"","title":"A4油耗设置，","postdate":"2013-04-01 09:10:06","lastreplydate":"2013-04-01 10:24:27","ispic":0,"ispoll":0,"ishtml":1,"isrecommend":0,"isdelete":0,"isclose":0,"isrefine":0,"replycount":5,"bbsid":692,"bbs":"c","bbsname":"奥迪A4L论坛"},{"topicid":21137731,"topictype":"","title":"这坛子没版主吗？提车作业不给精，不认证？","postdate":"2013-03-27 18:23:49","lastreplydate":"2013-03-28 12:57:49","ispic":0,"ispoll":0,"ishtml":1,"isrecommend":0,"isdelete":0,"isclose":0,"isrefine":0,"replycount":4,"bbsid":692,"bbs":"c","bbsname":"奥迪A4L论坛"},{"topicid":21081947,"topictype":"","title":"安装座套问题，求神指教","postdate":"2013-03-26 20:27:16","lastreplydate":"2013-03-27 12:17:22","ispic":0,"ispoll":0,"ishtml":1,"isrecommend":0,"isdelete":0,"isclose":0,"isrefine":0,"replycount":4,"bbsid":692,"bbs":"c","bbsname":"奥迪A4L论坛"},{"topicid":21037360,"topictype":"","title":"左后视镜虚线是什么功能？13款标准带后视镜电加热吗？","postdate":"2013-03-25 10:03:40","lastreplydate":"2013-03-25 14:26:23","ispic":0,"ispoll":0,"ishtml":1,"isrecommend":0,"isdelete":0,"isclose":0,"isrefine":0,"replycount":6,"bbsid":692,"bbs":"c","bbsname":"奥迪A4L论坛"},{"topicid":20889818,"topictype":"图","title":"屌丝"哥"提车记（申精）求认证","postdate":"2013-03-23 17:41:59","lastreplydate":"2013-04-08 11:54:46","ispic":1,"ispoll":0,"ishtml":1,"isrecommend":0,"isdelete":0,"isclose":0,"isrefine":0,"replycount":42,"bbsid":692,"bbs":"c","bbsname":"奥迪A4L论坛"},{"topicid":20799306,"topictype":"","title":"明天提车，4S要给我哪些东西啊","postdate":"2013-03-22 11:35:38","lastreplydate":"2013-03-22 13:42:17","ispic":0,"ispoll":0,"ishtml":1,"isrecommend":0,"isdelete":0,"isclose":0,"isrefine":0,"replycount":6,"bbsid":692,"bbs":"c","bbsname":"奥迪A4L论坛"},{"topicid":20730114,"topictype":"","title":"后天提车","postdate":"2013-03-21 20:47:53","lastreplydate":"2013-06-15 14:17:34","ispic":0,"ispoll":0,"ishtml":1,"isrecommend":0,"isdelete":0,"isclose":0,"isrefine":0,"replycount":4,"bbsid":692,"bbs":"c","bbsname":"奥迪A4L论坛"},{"topicid":20353689,"topictype":"","title":"咨询下做建行车贷的朋友","postdate":"2013-03-14 14:56:36","lastreplydate":"2013-03-14 18:29:22","ispic":0,"ispoll":0,"ishtml":1,"isrecommend":0,"isdelete":0,"isclose":0,"isrefine":0,"replycount":2,"bbsid":692,"bbs":"c","bbsname":"奥迪A4L论坛"},{"topicid":20346052,"topictype":"","title":"求教，车贷几天能放款","postdate":"2013-03-14 06:55:42","lastreplydate":"2013-03-14 09:59:55","ispic":0,"ispoll":0,"ishtml":1,"isrecommend":0,"isdelete":0,"isclose":0,"isrefine":0,"replycount":1,"bbsid":692,"bbs":"c","bbsname":"奥迪A4L论坛"},{"topicid":20296386,"topictype":"","title":"车贷问题可以问我，昨天订车，办完车贷","postdate":"2013-03-13 07:14:23","lastreplydate":"2013-03-13 14:33:09","ispic":0,"ispoll":0,"ishtml":1,"isrecommend":0,"isdelete":0,"isclose":0,"isrefine":0,"replycount":26,"bbsid":692,"bbs":"c","bbsname":"奥迪A4L论坛"},{"topicid":20268263,"topictype":"","title":"刚订车，常州价格","postdate":"2013-03-12 22:38:38","lastreplydate":"2013-03-13 14:55:48","ispic":0,"ispoll":0,"ishtml":1,"isrecommend":0,"isdelete":0,"isclose":0,"isrefine":0,"replycount":8,"bbsid":692,"bbs":"c","bbsname":"奥迪A4L论坛"},{"topicid":20097588,"topictype":"","title":"常州价格","postdate":"2013-03-07 18:19:55","lastreplydate":"2013-03-08 00:15:55","ispic":0,"ispoll":0,"ishtml":1,"isrecommend":0,"isdelete":0,"isclose":0,"isrefine":0,"replycount":5,"bbsid":692,"bbs":"c","bbsname":"奥迪A4L论坛"},{"topicid":19690200,"topictype":"","title":"贷款问题求指教","postdate":"2013-02-18 20:09:18","lastreplydate":"2013-02-18 20:33:08","ispic":0,"ispoll":0,"ishtml":1,"isrecommend":0,"isdelete":0,"isclose":0,"isrefine":0,"replycount":3,"bbsid":66,"bbs":"c","bbsname":"宝马3系论坛"},{"topicid":15926870,"topictype":"精","title":"提车作业咖啡金色","postdate":"2012-06-25 15:52:37","lastreplydate":"2012-08-03 15:49:26","ispic":0,"ispoll":0,"ishtml":1,"isrecommend":0,"isdelete":0,"isclose":0,"isrefine":3,"replycount":52,"bbsid":2566,"bbs":"c","bbsname":"欧诺论坛"},{"topicid":15899754,"topictype":"","title":"明天提车，等作业","postdate":"2012-06-23 08:08:15","lastreplydate":"2012-06-23 17:27:18","ispic":0,"ispoll":0,"ishtml":1,"isrecommend":0,"isdelete":0,"isclose":0,"isrefine":0,"replycount":5,"bbsid":2566,"bbs":"c","bbsname":"欧诺论坛"}]}}

上述字符串中包含的”“，导致没办法解析该json：

屌丝"哥"提车记（申精）求认证

为此，需要将json串进行转义，将这些双引号，转化为中文的双引号：

//将坏的json数据里面的双引号，改为中文的双引号
public static String jsonStringConvert(String s){
char[] temp = s.toCharArray();
int n = temp.length;
for(int i =0;i<n;i++){
if(temp[i]==':'&&temp[i+1]=='"'){
for(int j =i+2;j<n;j++){
if(temp[j]=='"'){
if(temp[j+1]!=',' &&  temp[j+1]!='}'){
temp[j]='”';
}else if(temp[j+1]==',' ||  temp[j+1]=='}'){
break ;
}
}
}
}
}
return new String(temp);
}