servlet返回json字符串,ajax接受失败


后台用servlet拼接出json字符串,前台用ajax接收,datatype设为text/html能顺利取到字符串,但是datatype改为json后ajax响应错误
String json="{";
json+="'userName':'tiny',";
json+="'userNo':'123'}";
writer.write(json);

后将输出字符串改为
String json="{";
json+="\"userName\":\"tiny\",";
json+="\"userNo\":\"123\"}";
writer.write(json);

则成功

转载于:https://my.oschina.net/silor/blog/222653

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转载自blog.csdn.net/weixin_33827731/article/details/91703401
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