add 增加 easyexcel 工具类
This commit is contained in:
parent
70b77d9801
commit
170908ef8d
|
@ -0,0 +1,30 @@
|
|||
package com.ruoyi.common.annotation;
|
||||
|
||||
import java.lang.annotation.*;
|
||||
|
||||
/**
|
||||
* 字典格式化
|
||||
*
|
||||
* @author Lion Li
|
||||
*/
|
||||
@Target({ElementType.FIELD})
|
||||
@Retention(RetentionPolicy.RUNTIME)
|
||||
@Inherited
|
||||
public @interface ExcelDictFormat {
|
||||
|
||||
/**
|
||||
* 如果是字典类型,请设置字典的type值 (如: sys_user_sex)
|
||||
*/
|
||||
String dictType() default "";
|
||||
|
||||
/**
|
||||
* 读取内容转表达式 (如: 0=男,1=女,2=未知)
|
||||
*/
|
||||
String readConverterExp() default "";
|
||||
|
||||
/**
|
||||
* 分隔符,读取字符串组内容
|
||||
*/
|
||||
String separator() default ",";
|
||||
|
||||
}
|
|
@ -0,0 +1,69 @@
|
|||
package com.ruoyi.common.convert;
|
||||
|
||||
import cn.hutool.core.annotation.AnnotationUtil;
|
||||
import cn.hutool.core.convert.Convert;
|
||||
import com.alibaba.excel.converters.Converter;
|
||||
import com.alibaba.excel.enums.CellDataTypeEnum;
|
||||
import com.alibaba.excel.metadata.CellData;
|
||||
import com.alibaba.excel.metadata.GlobalConfiguration;
|
||||
import com.alibaba.excel.metadata.property.ExcelContentProperty;
|
||||
import com.ruoyi.common.annotation.ExcelDictFormat;
|
||||
import com.ruoyi.common.utils.StringUtils;
|
||||
import com.ruoyi.common.utils.poi.ExcelUtils;
|
||||
import lombok.extern.slf4j.Slf4j;
|
||||
|
||||
import java.lang.reflect.Field;
|
||||
|
||||
/**
|
||||
* 字典格式化转换处理
|
||||
*
|
||||
* @author Lion Li
|
||||
*/
|
||||
@Slf4j
|
||||
public class ExcelDictConvert implements Converter<Object> {
|
||||
|
||||
@Override
|
||||
public Class<Object> supportJavaTypeKey() {
|
||||
return Object.class;
|
||||
}
|
||||
|
||||
@Override
|
||||
public CellDataTypeEnum supportExcelTypeKey() {
|
||||
return null;
|
||||
}
|
||||
|
||||
@Override
|
||||
public Object convertToJavaData(CellData cellData, ExcelContentProperty contentProperty, GlobalConfiguration globalConfiguration) {
|
||||
ExcelDictFormat anno = getAnnotation(contentProperty.getField());
|
||||
String type = anno.dictType();
|
||||
String label = cellData.getStringValue();
|
||||
String value;
|
||||
if (StringUtils.isBlank(type)) {
|
||||
value = ExcelUtils.reverseByExp(label, anno.readConverterExp(), anno.separator());
|
||||
} else {
|
||||
value = ExcelUtils.reverseDictByExp(label, type, anno.separator());
|
||||
}
|
||||
return Convert.convert(contentProperty.getField().getType(), value);
|
||||
}
|
||||
|
||||
@Override
|
||||
public CellData<String> convertToExcelData(Object object, ExcelContentProperty contentProperty, GlobalConfiguration globalConfiguration) {
|
||||
if (StringUtils.isNull(object)) {
|
||||
return new CellData<>("");
|
||||
}
|
||||
ExcelDictFormat anno = getAnnotation(contentProperty.getField());
|
||||
String type = anno.dictType();
|
||||
String value = Convert.toStr(object);
|
||||
String label;
|
||||
if (StringUtils.isBlank(type)) {
|
||||
label = ExcelUtils.convertByExp(value, anno.readConverterExp(), anno.separator());
|
||||
} else {
|
||||
label = ExcelUtils.convertDictByExp(value, type, anno.separator());
|
||||
}
|
||||
return new CellData<>(label);
|
||||
}
|
||||
|
||||
private ExcelDictFormat getAnnotation(Field field) {
|
||||
return AnnotationUtil.getAnnotation(field, ExcelDictFormat.class);
|
||||
}
|
||||
}
|
|
@ -0,0 +1,150 @@
|
|||
package com.ruoyi.common.utils.poi;
|
||||
|
||||
import cn.hutool.core.util.IdUtil;
|
||||
import com.alibaba.excel.EasyExcel;
|
||||
import com.alibaba.excel.write.style.column.LongestMatchColumnWidthStyleStrategy;
|
||||
import com.ruoyi.common.utils.DictUtils;
|
||||
import com.ruoyi.common.utils.StringUtils;
|
||||
import com.ruoyi.common.utils.file.FileUtils;
|
||||
|
||||
import javax.servlet.ServletOutputStream;
|
||||
import javax.servlet.http.HttpServletResponse;
|
||||
import java.io.IOException;
|
||||
import java.io.InputStream;
|
||||
import java.net.URLEncoder;
|
||||
import java.nio.charset.StandardCharsets;
|
||||
import java.util.List;
|
||||
|
||||
/**
|
||||
* Excel相关处理
|
||||
*
|
||||
* @author ruoyi
|
||||
*/
|
||||
public class ExcelUtils {
|
||||
|
||||
/**
|
||||
* 对excel表单默认第一个索引名转换成list(EasyExcel)
|
||||
*
|
||||
* @param is 输入流
|
||||
* @return 转换后集合
|
||||
*/
|
||||
public static <T> List<T> importExcel(InputStream is, Class<T> clazz) {
|
||||
return EasyExcel.read(is).head(clazz).sheet().doReadSync();
|
||||
}
|
||||
|
||||
/**
|
||||
* 对list数据源将其里面的数据导入到excel表单(EasyExcel)
|
||||
*
|
||||
* @param list 导出数据集合
|
||||
* @param sheetName 工作表的名称
|
||||
* @return 结果
|
||||
*/
|
||||
public static <T> void exportExcel(List<T> list, String sheetName, Class<T> clazz, HttpServletResponse response) {
|
||||
try {
|
||||
String filename = encodingFilename(sheetName);
|
||||
response.reset();
|
||||
response.addHeader("Access-Control-Allow-Origin", "*");
|
||||
response.addHeader("Access-Control-Expose-Headers", "Content-Disposition");
|
||||
FileUtils.setAttachmentResponseHeader(response, URLEncoder.encode(filename, StandardCharsets.UTF_8.toString()));
|
||||
response.setContentType("application/vnd.ms-excel;charset=UTF-8");
|
||||
ServletOutputStream os = response.getOutputStream();
|
||||
EasyExcel.write(os, clazz)
|
||||
.autoCloseStream(false)
|
||||
// 自动适配
|
||||
.registerWriteHandler(new LongestMatchColumnWidthStyleStrategy())
|
||||
.sheet(sheetName).doWrite(list);
|
||||
} catch (IOException e) {
|
||||
throw new RuntimeException("导出Excel异常");
|
||||
}
|
||||
}
|
||||
|
||||
/**
|
||||
* 解析导出值 0=男,1=女,2=未知
|
||||
*
|
||||
* @param propertyValue 参数值
|
||||
* @param converterExp 翻译注解
|
||||
* @param separator 分隔符
|
||||
* @return 解析后值
|
||||
*/
|
||||
public static String convertByExp(String propertyValue, String converterExp, String separator) {
|
||||
StringBuilder propertyString = new StringBuilder();
|
||||
String[] convertSource = converterExp.split(",");
|
||||
for (String item : convertSource) {
|
||||
String[] itemArray = item.split("=");
|
||||
if (StringUtils.containsAny(separator, propertyValue)) {
|
||||
for (String value : propertyValue.split(separator)) {
|
||||
if (itemArray[0].equals(value)) {
|
||||
propertyString.append(itemArray[1] + separator);
|
||||
break;
|
||||
}
|
||||
}
|
||||
} else {
|
||||
if (itemArray[0].equals(propertyValue)) {
|
||||
return itemArray[1];
|
||||
}
|
||||
}
|
||||
}
|
||||
return StringUtils.stripEnd(propertyString.toString(), separator);
|
||||
}
|
||||
|
||||
/**
|
||||
* 反向解析值 男=0,女=1,未知=2
|
||||
*
|
||||
* @param propertyValue 参数值
|
||||
* @param converterExp 翻译注解
|
||||
* @param separator 分隔符
|
||||
* @return 解析后值
|
||||
*/
|
||||
public static String reverseByExp(String propertyValue, String converterExp, String separator) {
|
||||
StringBuilder propertyString = new StringBuilder();
|
||||
String[] convertSource = converterExp.split(",");
|
||||
for (String item : convertSource) {
|
||||
String[] itemArray = item.split("=");
|
||||
if (StringUtils.containsAny(separator, propertyValue)) {
|
||||
for (String value : propertyValue.split(separator)) {
|
||||
if (itemArray[1].equals(value)) {
|
||||
propertyString.append(itemArray[0] + separator);
|
||||
break;
|
||||
}
|
||||
}
|
||||
} else {
|
||||
if (itemArray[1].equals(propertyValue)) {
|
||||
return itemArray[0];
|
||||
}
|
||||
}
|
||||
}
|
||||
return StringUtils.stripEnd(propertyString.toString(), separator);
|
||||
}
|
||||
|
||||
/**
|
||||
* 解析字典值
|
||||
*
|
||||
* @param dictValue 字典值
|
||||
* @param dictType 字典类型
|
||||
* @param separator 分隔符
|
||||
* @return 字典标签
|
||||
*/
|
||||
public static String convertDictByExp(String dictValue, String dictType, String separator) {
|
||||
return DictUtils.getDictLabel(dictType, dictValue, separator);
|
||||
}
|
||||
|
||||
/**
|
||||
* 反向解析值字典值
|
||||
*
|
||||
* @param dictLabel 字典标签
|
||||
* @param dictType 字典类型
|
||||
* @param separator 分隔符
|
||||
* @return 字典值
|
||||
*/
|
||||
public static String reverseDictByExp(String dictLabel, String dictType, String separator) {
|
||||
return DictUtils.getDictValue(dictType, dictLabel, separator);
|
||||
}
|
||||
|
||||
/**
|
||||
* 编码文件名
|
||||
*/
|
||||
public static String encodingFilename(String filename) {
|
||||
return IdUtil.fastSimpleUUID() + "_" + filename + ".xlsx";
|
||||
}
|
||||
|
||||
}
|
Loading…
Reference in New Issue