java
resp.setContentType("text/html;charset=UTF-8");
resp.setCharacterEncoding("charset=UTF-8");
resp.setHeader("content-type", "text/html;charset=UTF-8");
writer.write(getjsongread);
js
var gradejson;
var xmlhttp = getxmlhttp();
xmlhttp.open("post", "maininit", true);
xmlhttp.setRequestHeader("Content-type",
"application/x-www-form-urlencoded;UTF-8");
xmlhttp.send();
xmlhttp.onreadystatechange = function() {
if (xmlhttp.readyState == 4)
if (xmlhttp.status != 200) {
} else {
grade = xmlhttp.responseText;
gradejson = JSON.parse(grade);
console.log(gradejson);