Json data processing garbage problem

//解析前端JSON乱码问题
public static void getAnalysis(String analysisData ) throws UnsupportedEncodingException {
String name = URLEncoder.encode(analysisData, "UTF-8");
// System.out.println("1"+name);
// name=java.net.URLEncoder.encode(name,"UTF-8");
// System.out.println("2"+name);
// name=java.net.URLDecoder.decode(name, "UTF-8");
// System.out.println("3"+name);
System.out.println(java.net.URLDecoder.decode(name, "UTF-8"));
}