java servlet 显示中文乱码

答案:4 悬赏:0

解决时间 2021-04-07 06:35

提问者网友：独菊痴梦
2021-04-06 13:17

大家看一下，我的第一句就是response.setCharacterEncoding("GBK");
可是为什么他还是出现中文乱码那？

public void showInfo(HttpServletRequest request, HttpServletResponse response) throws ServletException,IOException{
response.setCharacterEncoding("GBK");
PrintWriter out = response.getWriter();

System.out.println("进入showInfo的Servlet");

ResultSet rsAll = null;
rsAll = dao.showInfo();
HttpSession session = request.getSession();
try {
while(rsAll.next()){

session.setAttribute("sno", rsAll.getString(1));
session.setAttribute("sname", rsAll.getString(2));
session.setAttribute("cname", rsAll.getString(3));
session.setAttribute("credit", rsAll.getString(4));
session.setAttribute("grade", rsAll.getInt(5));

}
} catch (SQLException e1) {
// TODO Auto-generated catch block
e1.printStackTrace();
}

out.println("<html>");
out.println("<body>" );
out.println("<table>" );
out.println("<tr>" );
out.print("<td>学号</td>" );
out.print("<td>姓名</td>" );
out.print("<td>课程</td>" );
out.print("<td>学分</td>" );
out.print("<td>成绩</td>" );
out.println("</tr>" );

try{

System.out.println("进入try");
String sno = (String)session.getAttribute("sno");
String sname = (String)session.getAttribute("sname");
String cname = (String)session.getAttribute("cname");
String credit = (String)session.getAttribute("credit");
String grade = session.getAttribute("grade").toString();
System.out.println(cname);

out.println("<tr>" );
out.println("<td>" );
out.print(sno);
out.println("</td>" );
out.println("<td>" );
out.print(sname);
out.println("</td>" );
out.println("<td>" );
out.print(cname);
out.println("</td>" );
out.println("<td>" );
out.print(credit);
out.println("</td>" );
out.println("<td>" );
out.print(grade);
out.println("</td>" );
out.println("</tr>" );
}catch(Exception e){
e.printStackTrace();
}
finally{
DBHelper.closeConnection();
}
out.println("</table>" );
out.println("</body>" );
out.println("<html>");
out.close();
System.out.println("执行完毕showInfo的Servlet");

}

最佳答案

二级知识专家网友：许你一世温柔
2021-04-06 13:27

你在servlet里面写response.setCharacterEncoding("GBK"); ，如果页面编码是iso-8859-1的话，页面显示的就是乱码。所以，需要你在页面上面也设置此类编码。
out.println("<html>");
out.println("<meta http-equiv=\"content-type\" content=\"text/html;charset=gb2312\">");

全部回答

1楼网友：余生继续浪
2021-04-06 14:50

UTF-8

2楼网友：恕我颓废
2021-04-06 14:35

response.setCharacterEncoding("utf-8");

3楼网友：都不是誰的誰
2021-04-06 13:40

GBK换成 utf-8 ；如果还不行的话在out.println的时候把页面编码也设置一下如果还不行的话看看你数据库编码对不对总之凡是有可能涉及到编码的地方都检查一下

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