Tomcat中文亂碼處理總結
import java.io.UnsupportedEncodingException;
import java.util.Map;
import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletRequestWrapper;
/**
* 對GET請求引數加以處理!
* @author lucien
*
*/
public class GetRequest extends HttpServletRequestWrapper {
private HttpServletRequest request;
private String charset;
public GetRequest(HttpServletRequest request, String charset) {
super(request);
this.request = request;
this.charset = charset;
}
@Override
public String getParameter(String name) {
// 獲取引數
String value = request.getParameter(name);
if(value == null) return null;//如果為null,直接返回null
try {
// 對引數進行編碼處理後返回
return new String(value.getBytes("ISO-8859-1"), charset);
} catch (UnsupportedEncodingException e) {
throw new RuntimeException(e);
}
}
@SuppressWarnings({ "unchecked", "rawtypes" })
@Override
public Map getParameterMap() {
Map<String,String[]> map = request.getParameterMap();
if(map == null) return map;
// 遍歷map,對每個值進行編碼處理
for(String key : map.keySet()) {
String[] values = map.get(key);
for(int i = 0; i < values.length; i++) {
try {
values[i] = new String(values[i].getBytes("ISO-8859-1"), charset);
} catch (UnsupportedEncodingException e) {
throw new RuntimeException(e);
}
}
}
// 處理後返回
return map;
}
@Override
public String[] getParameterValues(String name) {
String[] values = super.getParameterValues(name);
for(int i = 0; i < values.length; i++) {
try {
values[i] = new String(values[i].getBytes("ISO-8859-1"), charset);
} catch (UnsupportedEncodingException e) {
throw new RuntimeException(e);
}
}
return values;
}
}