JSP读入数据库 - Java / Java EE

我是个新手，做一个JSP网页，我要读出数据库正常，但是我要修改的时候，也就是读入的时候出现乱码，请高手告诉我怎么解决，先谢谢了。

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request.setCharacterEncoding("UTF-8");

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把编码统一

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/**
* 字符转换
*/
public String chanA(String str1)
{
String str = "";
try
{
str = new String(str1.getBytes("GB2312"), "ISO-8859-1");
} catch (Exception e)
{
e.printStackTrace();
}
return str;
}

/**
* 字符转换
*/
public String chanB(String str1)
{
String str = "";
try
{
str = new String(str1.getBytes("UTF-8"), "GB2312");
} catch (Exception e)
{
e.printStackTrace();
}
return str;
}

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记得还要在WBE.XML把它添加进去。

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是web.xml哈，写错了。。

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引用

直接写个过滤器。。省事多了。。。实现Filter就好了。。。
public void doFilter(ServletRequest servletRequest, ServletResponse servletResponse,
FilterChain filter) throws IOException, ServletException {
HttpServletRequest request=(HttpServletRequest)servletRequest;
HttpServletResponse response=(HttpServletResponse)servletResponse;
request.setCharacterEncoding("UTF-8");
response.setCharacterEncoding("UTF-8");
respo