springboot全局字符编码设置

1、在application.properties中设置

1#编码格式
2spring.http.encoding.force=true
3spring.http.encoding.charset=UTF-8
4spring.http.encoding.enabled=true
5server.tomcat.uri-encoding=UTF-8

2、自己手写编码过滤器

1//字符编码过滤器
2@WebFilter(urlPatterns = "/*",filterName = "CharacterEncodingFilter")
3public class CharacterEncodingFilter implements Filter{
4    @Override
5    public void init(FilterConfig filterConfig) throws ServletException {
6    }
7 
8    @Override
9    public void doFilter(ServletRequest servletRequest, ServletResponse servletResponse, FilterChain filterChain) throws IOException, ServletException {
10        HttpServletRequest request = (HttpServletRequest) servletRequest;
11        HttpServletResponse response = (HttpServletResponse) servletResponse;
12        request.setCharacterEncoding("UTF-8");
13        response.setCharacterEncoding("UTF-8");
14 
15        filterChain.doFilter(request , response);
16    }
17    @Override
18    public void destroy() {
19    }
20}

3、使用java配置写一个字符编码配置类

1/**
2 * 中文乱码解决
3 */
4@Configuration
5public class CharsetConfig extends WebMvcConfigurerAdapter {
6    @Bean
7    public HttpMessageConverter<String> responseBodyConverter() {
8        StringHttpMessageConverter converter = new StringHttpMessageConverter(
9                Charset.forName("UTF-8"));
10        return converter;
11    }
12    @Override
13    public void configureMessageConverters(List<HttpMessageConverter<?>> converters) {
14        super.configureMessageConverters(converters);
15        converters.add(responseBodyConverter());
16    }
17    @Override
18    public void configureContentNegotiation(ContentNegotiationConfigurer configurer) {
19        configurer.favorPathExtension(false);
20    }
21}

　　StringHttpMessageConverter是一个请求和响应信息的编码转换器，通过源码我们发现默认编码ISO-8859-1，不是UTF-8，所以我们只要通过上述配置将请求字符串转为UTF-8 即可。

WebMvcConfigurerAdapter 是springmvc的一个配置支配器类，我们可以实现我们感兴趣的方法。