乱码问题

1.传入参数乱码

2.返回结果乱码

json返回乱码解决

// response.setContentType("text/html;charset=UTF-8");
// response.setHeader("Cache-Control", "no-cache");
// response.getWriter().print("error");

字符串返回乱码解决

response.setContentType("application/json;charset=UTF-8");
response.setHeader("Cache-Control", "no-cache");
response.getWriter().print(jSON.toString());