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EncodingFilter.java
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 | import java.io.IOException; import javax.servlet.Filter; import javax.servlet.FilterChain; import javax.servlet.FilterConfig; import javax.servlet.ServletException; import javax.servlet.ServletRequest; import javax.servlet.ServletResponse; public class CommonEncodingFilter implements Filter { private String encoding = null; protected FilterConfig filterConfig = null; public void init(FilterConfig filterConfig) throws ServletException { this.filterConfig = filterConfig; this.encoding = filterConfig.getInitParameter("encoding"); } public void destroy() { this.encoding = null; this.filterConfig = null; } public void doFilter(ServletRequest request, ServletResponse response, FilterChain chain) throws IOException, ServletException { if (request.getCharacterEncoding() == null) { if (encoding != null) { request.setCharacterEncoding(encoding); } } chain.doFilter(request, response); } public FilterConfig getFilterConfig() { return filterConfig; } public void setFilterConfig(FilterConfig cfg) { filterConfig = cfg; } } | cs |
web.xml
1 2 3 4 5 6 7 8 9 10 11 12 13 | <filter> <filter-name>Encoding Filter</filter-name> <filter-class>com.exam.common.CommonEncodingFilter</filter-class> <init-param> <param-name>encoding</param-name> <param-value>UTF-8</param-value> </init-param> </filter> <filter-mapping> <filter-name>Encoding Filter</filter-name> <url-pattern>/*</url-pattern> </filter-mapping> | cs |
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