springboot增加过滤器后中文乱码

记录一下小问题

public class RepeatableHttpServletWrapper extends HttpServletRequestWrapper {private  byte[] body;public RepeatableHttpServletWrapper(HttpServletRequest request) throws IOException  {super(request);request.setCharacterEncoding("UTF-8");BufferedReader reader = request.getReader();try (StringWriter writer = new StringWriter()) {int read;char[] buf = new char[1024];while ((read = reader.read(buf)) != -1) {writer.write(buf, 0, read);}this.body = writer.getBuffer().toString().getBytes(StandardCharsets.UTF_8);}}public String getBody(){return new String(body, StandardCharsets.UTF_8);}@Overridepublic ServletInputStream getInputStream() {final ByteArrayInputStream byteArrayInputStream = new ByteArrayInputStream(body);return new ServletInputStream() {@Overridepublic boolean isFinished() {return false;}@Overridepublic boolean isReady() {return false;}@Overridepublic void setReadListener(ReadListener readListener) {}@Overridepublic int read() {return byteArrayInputStream.read();}};}@Overridepublic BufferedReader getReader() {return new BufferedReader(new InputStreamReader(this.getInputStream(), StandardCharsets.UTF_8));}
}

public class RepeatableWrapperFilter implements Filter {@Overridepublic void init(FilterConfig filterConfig) throws ServletException {}@Overridepublic void doFilter(ServletRequest servletRequest, ServletResponse servletResponse, FilterChain filterChain) throws IOException, ServletException {if (servletRequest.getCharacterEncoding() == null) {servletRequest.setCharacterEncoding("UTF-8");}ServletRequest requestWrapper = null;if(servletRequest instanceof HttpServletRequest) {requestWrapper = new RepeatableHttpServletWrapper((HttpServletRequest) servletRequest);}if(requestWrapper == null) {filterChain.doFilter(servletRequest, servletResponse);} else {filterChain.doFilter(requestWrapper, servletResponse);}}@Overridepublic void destroy() {}
}

    @Beanpublic FilterRegistrationBean repeatableWrapperFilter() {FilterRegistrationBean<RepeatableWrapperFilter> registrationBean = new FilterRegistrationBean();registrationBean.setFilter(new RepeatableWrapperFilter());registrationBean.addUrlPatterns("/*");registrationBean.setOrder(1);registrationBean.setAsyncSupported(true);return registrationBean;}

public class DataAuthenticationInterceptor implements HandlerInterceptor {private DataAuthenticationService dataAuthenticationService;@Overridepublic boolean preHandle(HttpServletRequest request, HttpServletResponse response, Object handler) throws Exception {RepeatableHttpServletWrapper repeatableRequest = new RepeatableHttpServletWrapper(request);String body = repeatableRequest.getBody();}

之前做的一个功能需要通过拦截器前置处理post请求中body的信息，由于body在request中是以流存在的，读完就没有了，所以需要增加一个过滤器来进行前置处理，在处理时候本地是正常的发布linux后出现中文乱码情况

方法1：在启动jvm的参数中增加 -Dfile.encoding=UTF-8

java -jar -Dfile.encoding=UTF-8 jar包

方法2：在xml文件的build标签中增加 jvm参数处理

<plugin><groupId>org.springframework.boot</groupId><artifactId>spring-boot-maven-plugin</artifactId><version>${spring-boot.version}</version><configuration><fork>true</fork><jvmArguments>-Dfile.encoding=UTF-8</jvmArguments></configuration>
</plugin>

方法3：处理读写是统一按照 UTF-8 处理
在这里插入图片描述
方法4：增加 CharacterEncodingFilter 过滤器，这个过滤器优先级要高于新增的过滤器

@Bean
public FilterRegistrationBean characterEncodingFilter() {CharacterEncodingFilter filter = new CharacterEncodingFilter();filter.setEncoding("UTF-8");filter.setForceEncoding(true);FilterRegistrationBean<CharacterEncodingFilter> registrationBean = new FilterRegistrationBean();registrationBean.setFilter(filter);registrationBean.addUrlPatterns("/*");registrationBean.setOrder(0);return registrationBean;
}