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package com.pig4cloud.plugin.excel;

import com.pig4cloud.plugin.excel.aop.DynamicNameAspect;
import com.pig4cloud.plugin.excel.aop.RequestExcelArgumentResolver;
import com.pig4cloud.plugin.excel.aop.ResponseExcelReturnValueHandler;
import com.pig4cloud.plugin.excel.config.ExcelConfigProperties;
import com.pig4cloud.plugin.excel.kit.SpringContextKit;
import com.pig4cloud.plugin.excel.processor.NameProcessor;
import com.pig4cloud.plugin.excel.processor.NameSpelExpressionProcessor;
import jakarta.annotation.PostConstruct;
import lombok.RequiredArgsConstructor;
import org.springframework.boot.autoconfigure.AutoConfiguration;
import org.springframework.boot.autoconfigure.condition.ConditionalOnMissingBean;
import org.springframework.boot.context.properties.EnableConfigurationProperties;
import org.springframework.context.annotation.Bean;
import org.springframework.context.annotation.Import;
import org.springframework.web.method.support.HandlerMethodArgumentResolver;
import org.springframework.web.method.support.HandlerMethodReturnValueHandler;
import org.springframework.web.servlet.mvc.method.annotation.RequestMappingHandlerAdapter;

import java.util.ArrayList;
import java.util.List;

/**
 * @author lengleng
 * @date 2020/3/29
 * 

* 配置初始化 */ @AutoConfiguration @RequiredArgsConstructor @Import({ ExcelHandlerConfiguration.class, SpringContextKit.class }) @EnableConfigurationProperties(ExcelConfigProperties.class) public class ResponseExcelAutoConfiguration { private final RequestMappingHandlerAdapter requestMappingHandlerAdapter; private final ResponseExcelReturnValueHandler responseExcelReturnValueHandler; /** * SPEL 解析处理器 * @return NameProcessor excel名称解析器 */ @Bean @ConditionalOnMissingBean public NameProcessor nameProcessor() { return new NameSpelExpressionProcessor(); } /** * Excel名称解析处理切面 * @param nameProcessor SPEL 解析处理器 * @return DynamicNameAspect */ @Bean @ConditionalOnMissingBean public DynamicNameAspect dynamicNameAspect(NameProcessor nameProcessor) { return new DynamicNameAspect(nameProcessor); } /** * 追加 Excel返回值处理器 到 springmvc 中 */ @PostConstruct public void setReturnValueHandlers() { List returnValueHandlers = requestMappingHandlerAdapter .getReturnValueHandlers(); List newHandlers = new ArrayList<>(); newHandlers.add(responseExcelReturnValueHandler); assert returnValueHandlers != null; newHandlers.addAll(returnValueHandlers); requestMappingHandlerAdapter.setReturnValueHandlers(newHandlers); } /** * 追加 Excel 请求处理器 到 springmvc 中 */ @PostConstruct public void setRequestExcelArgumentResolver() { List argumentResolvers = requestMappingHandlerAdapter.getArgumentResolvers(); List resolverList = new ArrayList<>(); resolverList.add(new RequestExcelArgumentResolver()); resolverList.addAll(argumentResolvers); requestMappingHandlerAdapter.setArgumentResolvers(resolverList); } }





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