自定义转换器实现参数去空格
1.自定义转换器类
实现Converter<S, T>类，重写convert（）方法，直接上代码。
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/** * 自定义转换器 * 去掉前后空格 * @author liuy * @version 2018年11月13日 */ public class CustomConverter implements Converter<String, String>{ @Override public String convert(String source) { try { if (source != null ){ source = source.trim(); if (! "" .equals(source)){ return source; } } } catch (Exception e) { e.printStackTrace(); } return null ; } } |
2.将转换器交给spring容器处理
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@Configuration public class SpringdataConvert { @Autowired private RequestMappingHandlerAdapter requestMappingHandlerAdapter;
@PostConstruct public void addConversionConfig(){ ConfigurableWebBindingInitializer initializer = (ConfigurableWebBindingInitializer) requestMappingHandlerAdapter.getWebBindingInitializer(); if (initializer.getConversionService()!= null ){ GenericConversionService genericConversionService =(GenericConversionService) initializer.getConversionService(); genericConversionService.addConverter( new CustomConverter()); } } } |
SpringBoot请求参数过滤空格
1、参数修改SpaceHttpServletRequestWrapper
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public class SpaceHttpServletRequestWrapper extends HttpServletRequestWrapper { public SpaceHttpServletRequestWrapper(HttpServletRequest servletRequest) { super (servletRequest); } @Override public String[] getParameterValues(String parameter) { String[] values = super .getParameterValues(parameter); if (values == null ) { return new String[ 0 ]; } int count = values.length; String[] encodedValues = new String[count]; for ( int i = 0 ; i < count; i++) { encodedValues[i] = values[i].trim(); } return encodedValues; } @Override public String getParameter(String parameter) { String value = super .getParameter(parameter); if (value == null ) { return null ; } return value.trim(); } } |
2、空格过滤器
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public class SpaceFilter implements Filter { private FilterConfig filterConfig; @Override public void init(FilterConfig filterConfig) throws ServletException { this .filterConfig = filterConfig; } @Override public void doFilter(ServletRequest servletRequest, ServletResponse servletResponse, FilterChain filterChain) throws IOException, ServletException { filterChain.doFilter( new SpaceHttpServletRequestWrapper( (HttpServletRequest) servletRequest), servletResponse); } @Override public void destroy() { this .filterConfig = null ; } } |
3、过滤器初始化
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@Configuration public class WebMvcConfiguration implements WebMvcConfigurer { @Bean public FilterRegistrationBean spaceFilter() { FilterRegistrationBean fitler = new FilterRegistrationBean(); fitler.setFilter( new SpaceFilter()); fitler.addUrlPatterns( "/*" ); fitler.setName( "SpaceFilter" ); fitler.setDispatcherTypes(DispatcherType.REQUEST); return fitler; } } |
以上为个人经验，希望能给大家一个参考，也希望大家多多支持。
原文链接：https://blog.csdn.net/weixin_41270375/article/details/84029562
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