在JSP中,有時在提交時會出現亂碼,
那么如何讓解決呢?

public class RequsetDemo2 extends HttpServlet {public void doGet(HttpServletRequest request, HttpServletResponse response)throws ServletException, IOException {doPost(request, response);}public void doPost(HttpServletRequest request, HttpServletResponse response)throws ServletException, IOException {//post提交的亂碼問題request.setCharacterEncoding("utf-8");//獲取超鏈接傳遞過來的數據System.out.println("-----獲取超鏈接傳遞過來的數據-----");String name = request.getParameter("name");String pwd = request.getParameter("password");System.out.println(name);System.out.println(pwd);System.out.println("-----獲取表單傳遞過來的數據-----");String nickname = request.getParameter("nickname");System.out.println(nickname);String[] hobbys = request.getParameterValues("hobby");//System.out.println(Arrays.toString(hobbys));for (int i = 0; i < hobbys.length; i++) {//如果是get提交，處理亂碼問題String hb = hobbys[i];//把中文轉換成字節byte[] ch = hb.getBytes("iso-8859-1");System.out.println(Arrays.toString(ch));.//再把字節以指定編碼組合String str = new String(ch,"utf-8");//或者簡寫為//String str=new String(request.getParameter("nickname").getBytes("ISO-8859-1"),"utf-8");System.out.println(str);/**或者服務器的server.xml中的*Connector標簽中添加URIEncoding="utf-8(也就是設置端口的那一個標簽).*如下*<Connector connectionTimeout="20000" port="8080" protocol="HTTP/1.1" redirectPort="8443" URIEncoding="utf-8"/>**/ }}}

在網上也有其他的解決方式,比如添加編碼過濾器(如spring中的),又或是自定義編碼過濾器等等:

Spring中的編碼過濾器 <!-- 編碼過濾器 --> <filter><filter-name>Spring character encoding filter</filter-name><filter-class>org.springframework.web.filter.CharacterEncodingFilter</filter-class><init-param><param-name>encoding</param-name><param-value>gb2312</param-value></init-param> </filter> <filter-mapping><filter-name>Spring character encoding filter</filter-name><url-pattern>/*</url-pattern> </filter-mapping>

總結

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