官方文档：https://github.com/alibaba/easyexcel
目标：导出的 excel 是下拉框
maven 导入依赖
<dependency>
<groupId>com.alibaba</groupId>
<artifactId>easyexcel</artifactId>
<version>3.3.2</version>
</dependency>
定义 SampleWriteHandler
- 根据参数 map 创建
- 添加约束
- 阻止输入非下拉选项的值
import com.alibaba.excel.write.handler.SheetWriteHandler;
import com.alibaba.excel.write.metadata.holder.WriteSheetHolder;
import com.alibaba.excel.write.metadata.holder.WriteWorkbookHolder;
import org.apache.poi.ss.usermodel.DataValidation;
import org.apache.poi.ss.usermodel.DataValidationConstraint;
import org.apache.poi.ss.usermodel.DataValidationHelper;
import org.apache.poi.ss.usermodel.Sheet;
import org.apache.poi.ss.util.CellRangeAddressList;
import java.util.Map;
public class SampleWriteHandler implements SheetWriteHandler {
private Map<Integer,String[]> map = null;
public SampleWriteHandler(Map<Integer,String[]> map){
this.map = map;
}
@Override
public void beforeSheetCreate(WriteWorkbookHolder writeWorkbookHolder, WriteSheetHolder writeSheetHolder) {
}
@Override
public void afterSheetCreate(WriteWorkbookHolder writeWorkbookHolder, WriteSheetHolder writeSheetHolder) {
// 这里可以对cell进行任何操作
Sheet sheet = writeSheetHolder.getSheet();
DataValidationHelper helper = sheet.getDataValidationHelper();
// k 为存在下拉数据集的单元格下表 v为下拉数据集
map.forEach((k, v) -> {
// 下拉列表约束数据
DataValidationConstraint constraint = helper.createExplicitListConstraint(v);
// 设置下拉单元格的首行 末行 首列 末列
CellRangeAddressList rangeList = new CellRangeAddressList(1, 65536, k, k);
// 设置约束
DataValidation validation = helper.createValidation(constraint, rangeList);
// 阻止输入非下拉选项的值
validation.setErrorStyle(DataValidation.ErrorStyle.STOP);
validation.setShowErrorBox(true);
validation.setSuppressDropDownArrow(true);
validation.createErrorBox("提示","此值与单元格定义格式不一致");
// validation.createPromptBox("填写说明：","填写内容只能为下拉数据集中的单位，其他单位将会导致无法入仓");
sheet.addValidationData(validation);
});
}
}
自定义注解，用在需要下拉的属性上
- source ：固定下拉内容
- sourceClass：动态下拉内容
import java.lang.annotation.*;
@Documented
@Target(ElementType.FIELD)
@Retention(RetentionPolicy.RUNTIME)
public @interface DropDownSetField {
String[] source() default {};
Class[] sourceClass() default {};
}
定义获取下拉框数据源的工具类
- 根据注解，获取下拉框的数据源
- 优先获取静态数据源
import com.sie.mbm.mom.framework.excel.annotation.DropDownSetField;
import com.sie.mbm.mom.framework.excel.handler.DropDownSetInterface;
import java.util.Arrays;
import java.util.Optional;
public class DropDownAnnotationUtil {
public static String[] resove(DropDownSetField dropDownSetField){
if(!Optional.ofNullable(dropDownSetField).isPresent()){
return null;
}
// 获取固定下拉信息
String[] source = dropDownSetField.source();
if(null != source && source.length > 0){
return source;
}
// 获取动态的下拉数据
Class<? extends DropDownSetInterface>[] classes = dropDownSetField.sourceClass();
if(null != classes && classes.length > 0){
try {
DropDownSetInterface dropDownSetInterface = Arrays.stream(classes).findFirst().get().newInstance();
String[] dynamicSource = dropDownSetInterface.getSource();
if(null != dynamicSource && dynamicSource.length > 0){
return dynamicSource;
}
} catch (InstantiationException e) {
e.printStackTrace();
} catch (IllegalAccessException e) {
e.printStackTrace();
}
}
return null;
}
}
定义导出excel的传参
public class DropDownExcelDTO {
@Schema(description = "文件类")
Class head;
@Schema(description = "文件属性")
Field[] fields;
@Schema(description = "文件按名称")
String fileName;
@Schema(description = "sheet名称")
String sheetName;
@Schema(description = "输出列表")
Collection<?> data;
@Schema(description = "文件类型，后缀")
ContentTypeEnum contentTypeEnum;
}
定义 ContentType 的枚举类
public enum ContentTypeEnum {
LOAD(".load", "text/html"),
V_123(".123", "application/vnd.lotus-1-2-3"),
I_3DS(".3ds", "image/x-3ds"),
V_3G2(".3g2", "video/3gpp"),
V_3GA(".3ga", "video/3gpp"),
F_3GP(".3gp", "video/3gpp"),
V_3GPP(".3gpp", "video/3gpp"),
X_602(".602", "application/x-t602"),
X_669(".669", "audio/x-mod"),
X_7Z(".7z", "application/x-7z-compressed"),
ARCHIVE(".a", "application/x-archive"),
AAC(".aac", "audio/mp4"),
ABW(".abw", "application/x-abiword"),
ABW_CRASHED(".abw.crashed", "application/x-abiword"),
ABW_GZ(".abw.gz", "application/x-abiword"),
AC3(".ac3", "audio/ac3"),
ACE(".ace", "application/x-ace"),
ADB(".adb", "text/x-adasrc"),
ADS(".ads", "text/x-adasrc"),
AFM(".afm", "application/x-font-afm"),
AG(".ag", "image/x-applix-graphics"),
AI(".ai", "application/illustrator"),
AIF(".aif", "audio/x-aiff"),
AIFC(".aifc", "audio/x-aiff"),
AIFF(".aiff", "audio/x-aiff"),
AL(".al", "application/x-perl"),
ALZ(".alz", "application/x-alz"),
AMR(".amr", "audio/amr"),
ANI(".ani", "application/x-navi-animation"),
ANIM_1_9(".anim[1-9j]", "video/x-anim"),
ANX(".anx", "application/annodex"),
APE(".ape", "audio/x-ape"),
ARJ(".arj", "application/x-arj"),
ARW(".arw", "image/x-sony-arw"),
AS(".as", "application/x-applix-spreadsheet"),
ASC(".asc", "text/plain"),
ASR(".asf", "video/x-ms-asf"),
ASP(".asp", "application/x-asp"),
ASS(".ass", "text/x-ssa"),
ASX(".asx", "audio/x-ms-asx"),
ATOM(".atom", "application/atom+xml"),
AU(".au", "audio/basic"),
AVI(".avi", "video/x-msvideo"),
AW(".aw", "application/x-applix-word"),
AWB(".awb", "audio/amr-wb"),
AWK(".awk", "application/x-awk"),
AXA(".axa", "audio/annodex"),
AXV(".axv", "video/annodex"),
BAK(".bak", "application/x-trash"),
BCPIO(".bcpio", "application/x-bcpio"),
BDF(".bdf", "application/x-font-bdf"),
BIB(".bib", "text/x-bibtex"),
BIN(".bin", "application/octet-stream"),
BLEND(".blend", "application/x-blender"),
BLENDER(".blender", "application/x-blender"),
BMP(".bmp", "image/bmp"),
BZ(".bz", "application/x-bzip"),
BZ2(".bz2", "application/x-bzip"),
C(".c", "text/x-csrc"),
C_C(".c++", "text/x-c++src"),
CAB(".cab", "application/vnd.ms-cab-compressed"),
CB7(".cb7", "application/x-cb7"),
CBR(".cbr", "application/x-cbr"),
CBT(".cbt", "application/x-cbt"),
CBZ(".cbz", "application/x-cbz"),
CC(".cc", "text/x-c++src"),
CDF(".cdf", "application/x-netcdf"),
CDR(".cdr", "application/vnd.corel-draw"),
CER(".cer", "application/x-x509-ca-cert"),
CERT(".cert", "application/x-x509-ca-cert"),
CGM(".cgm", "image/cgm"),
CHM(".chm", "application/x-chm"),
CHRT(".chrt", "application/x-kchart"),
CLASS(".class", "application/x-java"),
CLS(".cls", "text/x-tex"),
CMAKE(".cmake", "text/x-cmake"),
CPIO(".cpio", "application/x-cpio"),
CPIO_GZ(".cpio.gz", "application/x-cpio-compressed"),
CPP(".cpp", "text/x-c++src"),
CR2(".cr2", "image/x-canon-cr2"),
CRT(".crt", "application/x-x509-ca-cert"),
CRW(".crw", "image/x-canon-crw"),
CSSHARP(".cs", "text/x-csharp"),
CSH(".csh", "application/x-csh"),
CSS(".css", "text/css"),
CSSL(".cssl", "text/css"),
CSV(".csv", "text/csv"),
CUE(".cue", "application/x-cue"),
CUR(".cur", "image/x-win-bitmap"),
CXX(".cxx", "text/x-c++src"),
DSRC(".d", "text/x-dsrc"),
DAR(".dar", "application/x-dar"),
DBF(".dbf", "application/x-dbf"),
DC(".dc", "application/x-dc-rom"),
DCL(".dcl", "text/x-dcl"),
DCM(".dcm", "application/dicom"),
KODAK_DCR(".dcr", "image/x-kodak-dcr"),
DBS(".dds", "image/x-dds"),
DEB(".deb", "application/x-deb"),
DER(".der", "application/x-x509-ca-cert"),
DESTOP(".desktop", "application/x-desktop"),
DIA(".dia", "application/x-dia-diagram"),
DIFF(".diff", "text/x-patch"),
DIVX(".divx", "video/x-msvideo"),
DJV(".djv", "image/vnd.djvu"),
DJVU(".djvu", "image/vnd.djvu"),
DNG(".dng", "image/x-adobe-dng"),
DOC(".doc", "application/msword"),
DOCBOOK(".docbook", "application/docbook+xml"),
DOCM(".docm", "application/vnd.openxmlformats-officedocument.wordprocessingml.document"),
DOCX(".docx", "application/vnd.openxmlformats-officedocument.wordprocessingml.document"),
DOT(".dot", "text/vnd.graphviz"),
DSL(".dsl", "text/x-dsl"),
DTD(".dtd", "application/xml-dtd"),
DTX(".dtx", "text/x-tex"),
DV(".dv", "video/dv"),
DVI(".dvi", "application/x-dvi"),
DVI_BZ2(".dvi.bz2", "application/x-bzdvi"),
DVI_GZ(".dvi.gz", "application/x-gzdvi"),
DWG(".dwg", "image/vnd.dwg"),
DXF(".dxf", "image/vnd.dxf"),
E(".e", "text/x-eiffel"),
EGON(".egon", "application/x-egon"),
EIF(".eif", "text/x-eiffel"),
EL(".el", "text/x-emacs-lisp"),
EMF(".emf", "image/x-emf"),
EMP(".emp", "application/vnd.emusic-emusic_package"),
ENT(".ent", "application/xml-external-parsed-entity"),
EPS(".eps", "image/x-eps"),
EPS_BZ2(".eps.bz2", "image/x-bzeps"),
EPS_GZ(".eps.gz", "image/x-gzeps"),
EPSF(".epsf", "image/x-eps"),
EPSF_BZ2(".epsf.bz2", "image/x-bzeps"),
EPSF_GZ(".epsf.gz", "image/x-gzeps"),
EPSI(".epsi", "image/x-eps"),
EPSI_BZ2(".epsi.bz2", "image/x-bzeps"),
EPSI_GZ(".epsi.gz", "image/x-gzeps"),
EPUB(".epub", "application/epub+zip"),
ERL(".erl", "text/x-erlang"),
ES(".es", "application/ecmascript"),
ETHME(".etheme", "application/x-e-theme"),
ETX(".etx", "text/x-setext"),
EXE(".exe", "application/x-ms-dos-executable"),
EXR(".exr", "image/x-exr"),
EZ(".ez", "application/andrew-inset"),
F(".f", "text/x-fortran"),
F90(".f90", "text/x-fortran"),
F95(".f95", "text/x-fortran"),
FB2(".fb2", "application/x-fictionbook+xml"),
FIG(".fig", "image/x-xfig"),
FITS(".fits", "image/fits"),
FL(".fl", "application/x-fluid"),
FLAC(".flac", "audio/x-flac"),
FLC(".flc", "video/x-flic"),
FLI(".fli", "video/x-flic"),
FLV(".flv", "video/x-flv"),
FLW(".flw", "application/x-kivio"),
FO(".fo", "text/x-xslfo"),
FOR(".for", "text/x-fortran"),
G3(".g3", "image/fax-g3"),
GB(".gb", "application/x-gameboy-rom"),
GBA(".gba", "application/x-gba-rom"),
GCRD(".gcrd", "text/directory"),
GED(".ged", "application/x-gedcom"),
GEDCOM(".gedcom", "application/x-gedcom"),
GEN(".gen", "application/x-genesis-rom"),
GF(".gf", "application/x-tex-gf"),
GG(".gg", "application/x-sms-rom"),
GIF(".gif", "image/gif"),
GLADE(".glade", "application/x-glade"),
GMO(".gmo", "application/x-gettext-translation"),
GNC(".gnc", "application/x-gnucash"),
GND(".gnd", "application/gnunet-directory"),
GNUCASH(".gnucash", "application/x-gnucash"),
GNUMERIC(".gnumeric", "application/x-gnumeric"),
GNUPLOT(".gnuplot", "application/x-gnuplot"),
GP(".gp", "application/x-gnuplot"),
GPG(".gpg", "application/pgp-encrypted"),
GPLT(".gplt", "application/x-gnuplot"),
GRA(".gra", "application/x-graphite"),
GSF(".gsf", "application/x-font-type1"),
GSM(".gsm", "audio/x-gsm"),
GTAR(".gtar", "application/x-tar"),
GV(".gv", "text/vnd.graphviz"),
GVP(".gvp", "text/x-google-video-pointer"),
GZ(".gz", "application/x-gzip"),
H(".h", "text/x-chdr"),
HH(".h++", "text/x-c++hdr"),
HDF(".hdf", "application/x-hdf"),
HDR_HH(".hh", "text/x-c++hdr"),
HP(".hp", "text/x-c++hdr"),
HPGL(".hpgl", "application/vnd.hp-hpgl"),
HPP(".hpp", "text/x-c++hdr"),
HS(".hs", "text/x-haskell"),
HTM(".htm", "text/html"),
HTML(".html", "text/html"),
HWP(".hwp", "application/x-hwp"),
HWT(".hwt", "application/x-hwt"),
HXX(".hxx", "text/x-c++hdr"),
ICA(".ica", "application/x-ica"),
ICB(".icb", "image/x-tga"),
ICNS(".icns", "image/x-icns"),
ICO(".ico", "image/vnd.microsoft.icon"),
ICS(".ics", "text/calendar"),
IDL(".idl", "text/x-idl"),
IEF(".ief", "image/ief"),
IFF(".iff", "image/x-iff"),
ILBM(".ilbm", "image/x-ilbm"),
IME(".ime", "text/x-imelody"),
IMY(".imy", "text/x-imelody"),
INS(".ins", "text/x-tex"),
IPTABLES(".iptables", "text/x-iptables"),
ISO(".iso", "application/x-cd-image"),
ISO9660(".iso9660", "application/x-cd-image"),
IT(".it", "audio/x-it"),
J2K(".j2k", "image/jp2"),
JAD(".jad", "text/vnd.sun.j2me.app-descriptor"),
JAR(".jar", "application/x-java-archive"),
JAVA(".java", "text/x-java"),
JNG(".jng", "image/x-jng"),
JNLP(".jnlp", "application/x-java-jnlp-file"),
JP2(".jp2", "image/jp2"),
JPC(".jpc", "image/jp2"),
JPE(".jpe", "image/jpeg"),
JPEG(".jpeg", "image/jpeg"),
JPF(".jpf", "image/jp2"),
JPG(".jpg", "image/jpeg"),
JPR(".jpr", "application/x-jbuilder-project"),
JPX(".jpx", "image/jp2"),
JS(".js", "application/javascript"),
JSON(".json", "application/json"),
JSONP(".jsonp", "application/jsonp"),
K25(".k25", "image/x-kodak-k25"),
KAR(".kar", "audio/midi"),
KARBON(".karbon", "application/x-karbon"),
KDC(".kdc", "image/x-kodak-kdc"),
KDELNK(".kdelnk", "application/x-desktop"),
KEXI(".kexi", "application/x-kexiproject-sqlite3"),
KEXIC(".kexic", "application/x-kexi-connectiondata"),
KEXIS(".kexis", "application/x-kexiproject-shortcut"),
KFO(".kfo", "application/x-kformula"),
KIL(".kil", "application/x-killustrator"),
KINO(".kino", "application/smil"),
KML(".kml", "application/vnd.google-earth.kml+xml"),
KMZ(".kmz", "application/vnd.google-earth.kmz"),
KON(".kon", "application/x-kontour"),
KPM(".kpm", "application/x-kpovmodeler"),
KPR(".kpr", "application/x-kpresenter"),
KPT(".kpt", "application/x-kpresenter"),
KRA(".kra", "application/x-krita"),
KSP(".ksp", "application/x-kspread"),
KUD(".kud", "application/x-kugar"),
KWD(".kwd", "application/x-kword"),
KWT(".kwt", "application/x-kword"),
LA(".la", "application/x-shared-library-la"),
LATEX(".latex", "text/x-tex"),
LDIF(".ldif", "text/x-ldif"),
LHA(".lha", "application/x-lha"),
LHS(".lhs", "text/x-literate-haskell"),
LHZ(".lhz", "application/x-lhz"),
LOG(".log", "text/x-log"),
LTX(".ltx", "text/x-tex"),
LUA(".lua", "text/x-lua"),
LWO(".lwo", "image/x-lwo"),
LWOB(".lwob", "image/x-lwo"),
LWS(".lws", "image/x-lws"),
LY(".ly", "text/x-lilypond"),
LYX(".lyx", "application/x-lyx"),
LZ(".lz", "application/x-lzip"),
LZH(".lzh", "application/x-lha"),
LZMA(".lzma", "application/x-lzma"),
LZO(".lzo", "application/x-lzop"),
M(".m", "text/x-matlab"),
M15(".m15", "audio/x-mod"),
M2T(".m2t", "video/mpeg"),
M3U(".m3u", "audio/x-mpegurl"),
M3U8(".m3u8", "audio/x-mpegurl"),
M4(".m4", "application/x-m4"),
M4A(".m4a", "audio/mp4"),
M4B(".m4b", "audio/x-m4b"),
M4V(".m4v", "video/mp4"),
MAB(".mab", "application/x-markaby"),
MAN(".man", "application/x-troff-man"),
MBOX(".mbox", "application/mbox"),
MD(".md", "application/x-genesis-rom"),
MDB(".mdb", "application/vnd.ms-access"),
MDI(".mdi", "image/vnd.ms-modi"),
ME(".me", "text/x-troff-me"),
MED(".med", "audio/x-mod"),
METALINK(".metalink", "application/metalink+xml"),
MGP(".mgp", "application/x-magicpoint"),
MID(".mid", "audio/midi"),
MIDI(".midi", "audio/midi"),
MIF(".mif", "application/x-mif"),
MINIPSF(".minipsf", "audio/x-minipsf"),
MKA(".mka", "audio/x-matroska"),
MKV(".mkv", "video/x-matroska"),
NL(".ml", "text/x-ocaml"),
MIL(".mli", "text/x-ocaml"),
MM(".mm", "text/x-troff-mm"),
MMF(".mmf", "application/x-smaf"),
MML(".mml", "text/mathml"),
MNG(".mng", "video/x-mng"),
MO(".mo", "application/x-gettext-translation"),
MO3(".mo3", "audio/x-mo3"),
MOC(".moc", "text/x-moc"),
MOD(".mod", "audio/x-mod"),
MOF(".mof", "text/x-mof"),
MOOV(".moov", "video/quicktime"),
MOV(".mov", "video/quicktime"),
MOVIE(".movie", "video/x-sgi-movie"),
MP(".mp+", "audio/x-musepack"),
MP2(".mp2", "video/mpeg"),
MP3(".mp3", "audio/mpeg"),
MP4(".mp4", "video/mp4"),
MPC(".mpc", "audio/x-musepack"),
MPE(".mpe", "video/mpeg"),
MPEG(".mpeg", "video/mpeg"),
MPG(".mpg", "video/mpeg"),
MPGA(".mpga", "audio/mpeg"),
MPP(".mpp", "audio/x-musepack"),
MRL(".mrl", "text/x-mrml"),
MRML(".mrml", "text/x-mrml"),
MRW(".mrw", "image/x-minolta-mrw"),
MS(".ms", "text/x-troff-ms"),
MSI(".msi", "application/x-msi"),
MSOD(".msod", "image/x-msod"),
MSX(".msx", "application/x-msx-rom"),
MTM(".mtm", "audio/x-mod"),
MUP(".mup", "text/x-mup"),
MXF(".mxf", "application/mxf"),
N64(".n64", "application/x-n64-rom"),
NB(".nb", "application/mathematica"),
NC(".nc", "application/x-netcdf"),
NDS(".nds", "application/x-nintendo-ds-rom"),
NEF(".nef", "image/x-nikon-nef"),
NES(".nes", "application/x-nes-rom"),
NFO(".nfo", "text/x-nfo"),
NOT(".not", "text/x-mup"),
NSC(".nsc", "application/x-netshow-channel"),
NSV(".nsv", "video/x-nsv"),
O(".o", "application/x-object"),
OBJ(".obj", "application/x-tgif"),
OCL(".ocl", "text/x-ocl"),
ODA(".oda", "application/oda"),
ODB(".odb", "application/vnd.oasis.opendocument.database"),
ODC(".odc", "application/vnd.oasis.opendocument.chart"),
ODF(".odf", "application/vnd.oasis.opendocument.formula"),
ODG(".odg", "application/vnd.oasis.opendocument.graphics"),
ODI(".odi", "application/vnd.oasis.opendocument.image"),
ODM(".odm", "application/vnd.oasis.opendocument.text-master"),
ODP(".odp", "application/vnd.oasis.opendocument.presentation"),
ODS(".ods", "application/vnd.oasis.opendocument.spreadsheet"),
ODT(".odt", "application/vnd.oasis.opendocument.text"),
OGA(".oga", "audio/ogg"),
OGG(".ogg", "video/x-theora+ogg"),
OGM(".ogm", "video/x-ogm+ogg"),
OGV(".ogv", "video/ogg"),
OGX(".ogx", "application/ogg"),
OLD(".old", "application/x-trash"),
OLEO(".oleo", "application/x-oleo"),
OPML(".opml", "text/x-opml+xml"),
ORA(".ora", "image/openraster"),
ORF(".orf", "image/x-olympus-orf"),
OTC(".otc", "application/vnd.oasis.opendocument.chart-template"),
OTF(".otf", "application/x-font-otf"),
OTG(".otg", "application/vnd.oasis.opendocument.graphics-template"),
OTH(".oth", "application/vnd.oasis.opendocument.text-web"),
OTP(".otp", "application/vnd.oasis.opendocument.presentation-template"),
OTS(".ots", "application/vnd.oasis.opendocument.spreadsheet-template"),
OTT(".ott", "application/vnd.oasis.opendocument.text-template"),
OWL(".owl", "application/rdf+xml"),
OXT(".oxt", "application/vnd.openofficeorg.extension"),
P(".p", "text/x-pascal"),
P10(".p10", "application/pkcs10"),
P12(".p12", "application/x-pkcs12"),
P1B(".p7b", "application/x-pkcs7-certificates"),
P7S(".p7s", "application/pkcs7-signature"),
PACK(".pack", "application/x-java-pack200"),
PAK(".pak", "application/x-pak"),
PAR2(".par2", "application/x-par2"),
PAS(".pas", "text/x-pascal"),
PATHC(".patch", "text/x-patch"),
PBM(".pbm", "image/x-portable-bitmap"),
PCD(".pcd", "image/x-photo-cd"),
PCF(".pcf", "application/x-cisco-vpn-settings"),
PCF_GZ(".pcf.gz", "application/x-font-pcf"),
PCF_Z(".pcf.z", "application/x-font-pcf"),
PCL(".pcl", "application/vnd.hp-pcl"),
PCX(".pcx", "image/x-pcx"),
PDB(".pdb", "chemical/x-pdb"),
PDC(".pdc", "application/x-aportisdoc"),
PDF(".pdf", "application/pdf"),
PDF_BZ2(".pdf.bz2", "application/x-bzpdf"),
PDF_GZ(".pdf.gz", "application/x-gzpdf"),
PEF(".pef", "image/x-pentax-pef"),
PEM(".pem", "application/x-x509-ca-cert"),
PERL(".perl", "application/x-perl"),
PFA(".pfa", "application/x-font-type1"),
PFB(".pfb", "application/x-font-type1"),
PFX(".pfx", "application/x-pkcs12"),
PGM(".pgm", "image/x-portable-graymap"),
PGN(".pgn", "application/x-chess-pgn"),
PGP(".pgp", "application/pgp-encrypted"),
PHP(".php", "application/x-php"),
PHP3(".php3", "application/x-php"),
PHP4(".php4", "application/x-php"),
PICT(".pict", "image/x-pict"),
PICT1(".pict1", "image/x-pict"),
PICT2(".pict2", "image/x-pict"),
PICKLE(".pickle", "application/python-pickle"),
PK(".pk", "application/x-tex-pk"),
PKIPATH(".pkipath", "application/pkix-pkipath"),
PKR(".pkr", "application/pgp-keys"),
PL(".pl", "application/x-perl"),
PLA(".pla", "audio/x-iriver-pla"),
PLN(".pln", "application/x-planperfect"),
PLS(".pls", "audio/x-scpls"),
PM(".pm", "application/x-perl"),
PNG(".png", "image/png"),
PNM(".pnm", "image/x-portable-anymap"),
PNTG(".pntg", "image/x-macpaint"),
PO(".po", "text/x-gettext-translation"),
POR(".por", "application/x-spss-por"),
POT(".pot", "text/x-gettext-translation-template"),
PPM(".ppm", "image/x-portable-pixmap"),
PPS(".pps", "application/vnd.ms-powerpoint"),
PPT(".ppt", "application/vnd.ms-powerpoint"),
PPTM(".pptm", "application/vnd.openxmlformats-officedocument.presentationml.presentation"),
PPTX(".pptx", "application/vnd.openxmlformats-officedocument.presentationml.presentation"),
PPZ(".ppz", "application/vnd.ms-powerpoint"),
PRC(".prc", "application/x-palm-database"),
PS(".ps", "application/postscript"),
PS_BZ2(".ps.bz2", "application/x-bzpostscript"),
PS_GZ(".ps.gz", "application/x-gzpostscript"),
PSD(".psd", "image/vnd.adobe.photoshop"),
PSF(".psf", "audio/x-psf"),
PSF_GZ(".psf.gz", "application/x-gz-font-linux-psf"),
PSFLIB(".psflib", "audio/x-psflib"),
PSID(".psid", "audio/prs.sid"),
PSW(".psw", "application/x-pocket-word"),
PW(".pw", "application/x-pw"),
PY(".py", "text/x-python"),
PYC(".pyc", "application/x-python-bytecode"),
PYO(".pyo", "application/x-python-bytecode"),
QIF(".qif", "image/x-quicktime"),
QT(".qt", "video/quicktime"),
QTIF(".qtif", "image/x-quicktime"),
QTL(".qtl", "application/x-quicktime-media-link"),
QTVR(".qtvr", "video/quicktime"),
RA(".ra", "audio/vnd.rn-realaudio"),
RAF(".raf", "image/x-fuji-raf"),
RAM(".ram", "application/ram"),
RAR(".rar", "application/x-rar"),
RAS(".ras", "image/x-cmu-raster"),
RAW(".raw", "image/x-panasonic-raw"),
RAX(".rax", "audio/vnd.rn-realaudio"),
RB(".rb", "application/x-ruby"),
RDF(".rdf", "application/rdf+xml"),
RDFS(".rdfs", "application/rdf+xml"),
REG(".reg", "text/x-ms-regedit"),
REJ(".rej", "application/x-reject"),
RGB(".rgb", "image/x-rgb"),
RLE(".rle", "image/rle"),
RM(".rm", "application/vnd.rn-realmedia"),
RMJ(".rmj", "application/vnd.rn-realmedia"),
RMM(".rmm", "application/vnd.rn-realmedia"),
RMS(".rms", "application/vnd.rn-realmedia"),
RMVB(".rmvb", "application/vnd.rn-realmedia"),
RMX(".rmx", "application/vnd.rn-realmedia"),
ROFF(".roff", "text/troff"),
RP(".rp", "image/vnd.rn-realpix"),
RPM(".rpm", "application/x-rpm"),
RSS(".rss", "application/rss+xml"),
RT(".rt", "text/vnd.rn-realtext"),
RTF(".rtf", "application/rtf"),
RTX(".rtx", "text/richtext"),
RV(".rv", "video/vnd.rn-realvideo"),
RVX(".rvx", "video/vnd.rn-realvideo"),
S3M(".s3m", "audio/x-s3m"),
SAM(".sam", "application/x-amipro"),
SAMI(".sami", "application/x-sami"),
SAV(".sav", "application/x-spss-sav"),
SCM(".scm", "text/x-scheme"),
SDA(".sda", "application/vnd.stardivision.draw"),
SDC(".sdc", "application/vnd.stardivision.calc"),
SDD(".sdd", "application/vnd.stardivision.impress"),
SDP(".sdp", "application/sdp"),
SDS(".sds", "application/vnd.stardivision.chart"),
SDW(".sdw", "application/vnd.stardivision.writer"),
SGF(".sgf", "application/x-go-sgf"),
SGI(".sgi", "image/x-sgi"),
SGL(".sgl", "application/vnd.stardivision.writer"),
SGM(".sgm", "text/sgml"),
SGML(".sgml", "text/sgml"),
SH(".sh", "application/x-shellscript"),
SHAR(".shar", "application/x-shar"),
SHN(".shn", "application/x-shorten"),
SIAG(".siag", "application/x-siag"),
SID(".sid", "audio/prs.sid"),
SIK(".sik", "application/x-trash"),
SIS(".sis", "application/vnd.symbian.install"),
SISX(".sisx", "x-epoc/x-sisx-app"),
SIT(".sit", "application/x-stuffit"),
SIV(".siv", "application/sieve"),
SK(".sk", "image/x-skencil"),
SK1(".sk1", "image/x-skencil"),
SKR(".skr", "application/pgp-keys"),
SLK(".slk", "text/spreadsheet"),
SMAF(".smaf", "application/x-smaf"),
SMC(".smc", "application/x-snes-rom"),
SMD(".smd", "application/vnd.stardivision.mail"),
SMF(".smf", "application/vnd.stardivision.math"),
SMI(".smi", "application/x-sami"),
SMIL(".smil", "application/smil"),
SML(".sml", "application/smil"),
SMS(".sms", "application/x-sms-rom"),
SND(".snd", "audio/basic"),
SO(".so", "application/x-sharedlib"),
SPC(".spc", "application/x-pkcs7-certificates"),
SPD(".spd", "application/x-font-speedo"),
SPEC(".spec", "text/x-rpm-spec"),
SPL(".spl", "application/x-shockwave-flash"),
SPX(".spx", "audio/x-speex"),
SQL(".sql", "text/x-sql"),
SR2(".sr2", "image/x-sony-sr2"),
SRC(".src", "application/x-wais-source"),
SRF(".srf", "image/x-sony-srf"),
SRT(".srt", "application/x-subrip"),
SSA(".ssa", "text/x-ssa"),
STC(".stc", "application/vnd.sun.xml.calc.template"),
STD(".std", "application/vnd.sun.xml.draw.template"),
STI(".sti", "application/vnd.sun.xml.impress.template"),
STM(".stm", "audio/x-stm"),
STW(".stw", "application/vnd.sun.xml.writer.template"),
STY(".sty", "text/x-tex"),
SUB(".sub", "text/x-subviewer"),
SUM(".sun", "image/x-sun-raster"),
SV4CPIO(".sv4cpio", "application/x-sv4cpio"),
SV4CRC(".sv4crc", "application/x-sv4crc"),
SVG(".svg", "image/svg+xml"),
SVGZ(".svgz", "image/svg+xml-compressed"),
SWF(".swf", "application/x-shockwave-flash"),
SXC(".sxc", "application/vnd.sun.xml.calc"),
SXD(".sxd", "application/vnd.sun.xml.draw"),
SXG(".sxg", "application/vnd.sun.xml.writer.global"),
SXI(".sxi", "application/vnd.sun.xml.impress"),
SXM(".sxm", "application/vnd.sun.xml.math"),
SXW(".sxw", "application/vnd.sun.xml.writer"),
SYLK(".sylk", "text/spreadsheet"),
T(".t", "text/troff"),
T2T(".t2t", "text/x-txt2tags"),
TAR(".tar", "application/x-tar"),
TAR_BZ(".tar.bz", "application/x-bzip-compressed-tar"),
TAR_BZ2(".tar.bz2", "application/x-bzip-compressed-tar"),
TAR_GZ(".tar.gz", "application/x-compressed-tar"),
TAR_LZMA(".tar.lzma", "application/x-lzma-compressed-tar"),
TAR_LZO(".tar.lzo", "application/x-tzo"),
TAG_XZ(".tar.xz", "application/x-xz-compressed-tar"),
TAG_Z(".tar.z", "application/x-tarz"),
TBZ(".tbz", "application/x-bzip-compressed-tar"),
TBZ2(".tbz2", "application/x-bzip-compressed-tar"),
TCL(".tcl", "text/x-tcl"),
TEX(".tex", "text/x-tex"),
TEXI(".texi", "text/x-texinfo"),
TEXINFO(".texinfo", "text/x-texinfo"),
TGA(".tga", "image/x-tga"),
TGZ(".tgz", "application/x-compressed-tar"),
THEME(".theme", "application/x-theme"),
THEMEPACK(".themepack", "application/x-windows-themepack"),
TIF(".tif", "image/tiff"),
TIFF(".tiff", "image/tiff"),
TK(".tk", "text/x-tcl"),
TLZ(".tlz", "application/x-lzma-compressed-tar"),
TNEF(".tnef", "application/vnd.ms-tnef"),
TNF(".tnf", "application/vnd.ms-tnef"),
TOC(".toc", "application/x-cdrdao-toc"),
TORRENT(".torrent", "application/x-bittorrent"),
TPIC(".tpic", "image/x-tga"),
TR(".tr", "text/troff"),
TS(".ts", "application/x-linguist"),
TSC(".tsv", "text/tab-separated-values"),
TTA(".tta", "audio/x-tta"),
TTC(".ttc", "application/x-font-ttf"),
TTF(".ttf", "application/x-font-ttf"),
TTX(".ttx", "application/x-font-ttx"),
TXT(".txt", "text/plain"),
TXZ(".txz", "application/x-xz-compressed-tar"),
TZO(".tzo", "application/x-tzo"),
UFRAW(".ufraw", "application/x-ufraw"),
UI(".ui", "application/x-designer"),
UIL(".uil", "text/x-uil"),
ULT(".ult", "audio/x-mod"),
UNI(".uni", "audio/x-mod"),
URI(".uri", "text/x-uri"),
URL(".url", "text/x-uri"),
USTAR(".ustar", "application/x-ustar"),
VALA(".vala", "text/x-vala"),
VAPI(".vapi", "text/x-vala"),
VCF(".vcf", "text/directory"),
VCS(".vcs", "text/calendar"),
VCT(".vct", "text/directory"),
VDA(".vda", "image/x-tga"),
VDH(".vhd", "text/x-vhdl"),
VDHL(".vhdl", "text/x-vhdl"),
VIV(".viv", "video/vivo"),
VIVO(".vivo", "video/vivo"),
VLC(".vlc", "audio/x-mpegurl"),
VOB(".vob", "video/mpeg"),
VOC(".voc", "audio/x-voc"),
VOR(".vor", "application/vnd.stardivision.writer"),
VST(".vst", "image/x-tga"),
WAV(".wav", "audio/x-wav"),
WAX(".wax", "audio/x-ms-asx"),
WB1(".wb1", "application/x-quattropro"),
wb2(".wb2", "application/x-quattropro"),
WB3(".wb3", "application/x-quattropro"),
WBMP(".wbmp", "image/vnd.wap.wbmp"),
WCM(".wcm", "application/vnd.ms-works"),
WDB(".wdb", "application/vnd.ms-works"),
WEBM(".webm", "video/webm"),
WK1(".wk1", "application/vnd.lotus-1-2-3"),
WK3(".wk3", "application/vnd.lotus-1-2-3"),
WK4(".wk4", "application/vnd.lotus-1-2-3"),
WKS(".wks", "application/vnd.ms-works"),
WMA(".wma", "audio/x-ms-wma"),
WMF(".wmf", "image/x-wmf"),
WML(".wml", "text/vnd.wap.wml"),
WMLS(".wmls", "text/vnd.wap.wmlscript"),
WMV(".wmv", "video/x-ms-wmv"),
WMX(".wmx", "audio/x-ms-asx"),
WP(".wp", "application/vnd.wordperfect"),
WP4(".wp4", "application/vnd.wordperfect"),
WP5(".wp5", "application/vnd.wordperfect"),
WP6(".wp6", "application/vnd.wordperfect"),
WPD(".wpd", "application/vnd.wordperfect"),
WPG(".wpg", "application/x-wpg"),
WPL(".wpl", "application/vnd.ms-wpl"),
WPP(".wpp", "application/vnd.wordperfect"),
WPS(".wps", "application/vnd.ms-works"),
WRI(".wri", "application/x-mswrite"),
WRL(".wrl", "model/vrml"),
WV(".wv", "audio/x-wavpack"),
WVC(".wvc", "audio/x-wavpack-correction"),
WVP(".wvp", "audio/x-wavpack"),
WVX(".wvx", "audio/x-ms-asx"),
X3F(".x3f", "image/x-sigma-x3f"),
XAC(".xac", "application/x-gnucash"),
XBEL(".xbel", "application/x-xbel"),
XBL(".xbl", "application/xml"),
XBM(".xbm", "image/x-xbitmap"),
XCF(".xcf", "image/x-xcf"),
XCF_BZ2(".xcf.bz2", "image/x-compressed-xcf"),
XCF_GZ(".xcf.gz", "image/x-compressed-xcf"),
XHTML(".xhtml", "application/xhtml+xml"),
XI(".xi", "audio/x-xi"),
XLA(".xla", "application/vnd.ms-excel"),
XLC(".xlc", "application/vnd.ms-excel"),
XLD(".xld", "application/vnd.ms-excel"),
XLF(".xlf", "application/x-xliff"),
XLIFF(".xliff", "application/x-xliff"),
XLL(".xll", "application/vnd.ms-excel"),
XLM(".xlm", "application/vnd.ms-excel"),
XLS(".xls", "application/vnd.ms-excel"),
XLSM(".xlsm", "application/vnd.openxmlformats-officedocument.spreadsheetml.sheet"),
XLSX(".xlsx", "application/vnd.openxmlformats-officedocument.spreadsheetml.sheet"),
XLT(".xlt", "application/vnd.ms-excel"),
XLW(".xlw", "application/vnd.ms-excel"),
XM(".xm", "audio/x-xm"),
XMF(".xmf", "audio/x-xmf"),
XMI(".xmi", "text/x-xmi"),
XML(".xml", "application/xml"),
XPM(".xpm", "image/x-xpixmap"),
XPS(".xps", "application/vnd.ms-xpsdocument"),
XSL(".xsl", "application/xml"),
XSLFO(".xslfo", "text/x-xslfo"),
XSLT(".xslt", "application/xml"),
XSPF(".xspf", "application/xspf+xml"),
XUL(".xul", "application/vnd.mozilla.xul+xml"),
XWD(".xwd", "image/x-xwindowdump"),
XYZ(".xyz", "chemical/x-pdb"),
XZ(".xz", "application/x-xz"),
W2P(".w2p", "application/w2p"),
Z(".z", "application/x-compress"),
ZABW(".zabw", "application/x-abiword"),
ZIP(".zip", "application/zip");
/**
* 后缀
*/
private String surffix;
/**
* 类型
*/
private String centType;
ContentTypeEnum(String surffix, String centType) {
this.surffix = surffix;
this.centType = centType;
}
public String getSurffix() {
return surffix;
}
public void setSurffix(String surffix) {
this.surffix = surffix;
}
public String getCentType() {
return centType;
}
public void setCentType(String centType) {
this.centType = centType;
}
}
重点来了
定义导出方法
- write：调用 EasyExcel.write 方法，根据 SampleWriteHandler 修改 excel 的返回样式
- getFields：根据 DropDownAnnotationUtil 获取下拉数据源
- getOutputStream：定义输出流，如文件名，后缀等
这里是引用
import com.alibaba.excel.EasyExcel;
import com.alibaba.excel.ExcelWriter;
import com.alibaba.excel.write.metadata.WriteSheet;
import com.sie.mbm.mom.framework.excel.annotation.DropDownSetField;
import com.sie.mbm.mom.framework.excel.enums.ContentTypeEnum;
import com.sie.mbm.mom.framework.excel.handler.SampleWriteHandler;
import com.sie.mbm.mom.framework.excel.vo.DropDownExcelDTO;
import javax.servlet.http.HttpServletResponse;
import java.io.IOException;
import java.io.OutputStream;
import java.lang.reflect.Field;
import java.util.HashMap;
import java.util.Map;
public class ExcelDropDownUtil {
public static void write(DropDownExcelDTO dto) throws IOException {
String fileName = URLEncoder.encode(dto.getFileName(), UTF8);
String sheetName = URLEncoder.encode(dto.getSheetName(), UTF8);
ServletRequestAttributes servletRequestAttributes = (ServletRequestAttributes) RequestContextHolder.getRequestAttributes();
HttpServletResponse response = servletRequestAttributes.getResponse();
OutputStream outputStream = getOutputStream(response, dto.getContentTypeEnum(), fileName);
Map<Integer, String[]> map = getFields( dto.getFields());
ExcelWriter excelWriter = EasyExcel.write(outputStream,
dto.getHead())
.registerWriteHandler(new SampleWriteHandler(map)).build();
WriteSheet sheet = EasyExcel.writerSheet(0, sheetName).build();
excelWriter.write(dto.getData(), sheet);
excelWriter.finish();
outputStream.close();
}
private static OutputStream getOutputStream(HttpServletResponse response, ContentTypeEnum contentTypeEnum, String fileName) throws IOException {
OutputStream outputStream = response.getOutputStream();
response.setHeader("Content-disposition", "attachment;filename*=utf-8''" + fileName + contentTypeEnum.getSurffix());
response.setContentType(contentTypeEnum.getCentType());// 定义输出类型
response.setCharacterEncoding("UTF-8");
return outputStream;
}
private static Map<Integer, String[]> getFields(Field[] fields) throws IOException {
Map<Integer, String[]> map = new HashMap<>();
Field field = null;
for (int i = 0; i < fields.length; i++) {
field = fields[i];
// 解析注解信息
DropDownSetField dropDownSetField = field.getAnnotation(DropDownSetField.class);
if (null != dropDownSetField) {
String[] sources = DropDownAnnotationUtil.resove(dropDownSetField);
if (null != sources && sources.length > 0) {
map.put(i, sources);
}
}
}
return map;
}
}
定义接口，用于动态下拉
public interface DropDownSetInterface {
String[] getSource();
}
实现接口
public class DropDownSetImpl implements DropDownSetInterface {
@Override
public String[] getSource() {
return new String[]{"一班", "二班", "三班" };
}
}
实体使用注解
@Data
public class UserModel {
@ExcelProperty(value = "名称")
private String name;
@ExcelProperty(value = "性别")
@DropDownSetField(source = {"男","女"})
private String type;
@ExcelProperty(value = "班级")
@DropDownSetField(sourceClass = DropDownSetImpl.class)
private String unit;
}
导出使用例子
@GetMapping("/export/template")
@Operation(summary = "导出下载模板")
public void exportTemplate() throws IOException {
List<UserModel> list = new ArrayList<>();
DropDownExcelDTO dto = new DropDownExcelDTO(
UserModel.class,
UserModel.class.getDeclaredFields(),
"文件名",
"sheet名",
list,
ContentTypeEnum.XLSX);
ExcelDropDownUtil.write(dto);
}
完成
