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解决angular在springboot中刷新导致404的问题，其根源在于需要将所有error page都重定向到angular的路由
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| import org.springframework.beans.factory.annotation.Autowired; | |
| import org.springframework.boot.autoconfigure.web.ResourceProperties; | |
| import org.springframework.context.annotation.Configuration; | |
| import org.springframework.core.io.Resource; | |
| import org.springframework.web.servlet.config.annotation.ResourceHandlerRegistry; | |
| import org.springframework.web.servlet.config.annotation.WebMvcConfigurer; | |
| import org.springframework.web.servlet.resource.PathResourceResolver; | |
| import java.io.IOException; | |
| import java.util.Arrays; | |
| @Configuration | |
| public class StaticResourcesConfiguration implements WebMvcConfigurer { | |
| static final String[] STATIC_RESOURCES = new String[]{ | |
| "/**/*.css", | |
| "/**/*.html", | |
| "/**/*.js", | |
| "/**/*.json", | |
| "/**/*.bmp", | |
| "/**/*.jpeg", | |
| "/**/*.jpg", | |
| "/**/*.png", | |
| "/**/*.ttf", | |
| "/**/*.eot", | |
| "/**/*.svg", | |
| "/**/*.woff", | |
| "/**/*.woff2" | |
| }; | |
| private final ResourceProperties resourceProperties; | |
| @Autowired | |
| public StaticResourcesConfiguration(ResourceProperties resourceProperties) { | |
| this.resourceProperties = resourceProperties; | |
| } | |
| @Override | |
| public void addResourceHandlers(ResourceHandlerRegistry registry) { | |
| //Add all static files | |
| registry.addResourceHandler(STATIC_RESOURCES) | |
| .addResourceLocations(resourceProperties.getStaticLocations()); | |
| System.out.println(Arrays.toString(resourceProperties.getStaticLocations())); | |
| //Create mapping to index.html for Angular HTML5 mode. | |
| String[] indexLocations = getIndexLocations(); | |
| registry.addResourceHandler("/**") | |
| .addResourceLocations(indexLocations) | |
| .resourceChain(true) | |
| .addResolver(new PathResourceResolver() { | |
| @Override | |
| protected Resource getResource(String resourcePath, Resource location) throws IOException { | |
| return location.exists() && location.isReadable() ? location : null; | |
| } | |
| }); | |
| } | |
| private String[] getIndexLocations() { | |
| return Arrays.stream(resourceProperties.getStaticLocations()) | |
| .map((location) -> location + "index.html") | |
| .toArray(String[]::new); | |
| } | |
| } |
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