自定義轉換器實現參數去空格
1.自定義轉換器類
實現Converter<S, T>類，重寫convert（）方法，直接上代碼。
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/*** 自定義轉換器* 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.將轉換器交給spring容器處理
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@Configurationpublic 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請求參數過濾空格
1、參數修改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、空格過濾器
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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、過濾器初始化
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@Configurationpublic 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; }} |
以上為個人經驗，希望能給大家一個參考，也希望大家多多支持服務器之家。
原文鏈接：https://blog.csdn.net/weixin_41270375/article/details/84029562
