JSON报错 SyntaxError: JSON.parse: expected property name or '}' at line 1 column 2 of the JSON data

String jsonRedirect = "{code:-101, msg:'没操作权限'}";//这里有错
response.setContentType("application/json; charset=utf-8");
response.getWriter().println(jsonRedirect 
);

解决：改用双引号

String jsonRedirect = "{\"code\":-101, \"msg\":\"没操作权限\"}";