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POI 操作Excel 出现如下异常
org.apache.poi.openxml4j.exceptions.invalidformatexception: package should contain a content type part
代码如下
public boolean parseToExcel(String oldFileName,String newFileName){
Map<Object,Object> map = new HashMap<Object,Object>();
map.put(0,"FYMC");
map.put(1,"GXFYS");
map.put(2,"LS_YSJGYS");
map.put(4,"LS_ZDHJAJS");
map.put(5,"LS_CGRKAJS");
map.put(6,"LS_RKSBAJS");
map.put(7,"LS_XSAJS");
map.put(8,"LS_YJAJS");
map.put(9,"LS_FYS");
map.put(
Map<Object,Object> map = new HashMap<Object,Object>();
map.put(0,"FYMC");
map.put(1,"GXFYS");
map.put(2,"LS_YSJGYS");
map.put(4,"LS_ZDHJAJS");
map.put(5,"LS_CGRKAJS");
map.put(6,"LS_RKSBAJS");
map.put(7,"LS_XSAJS");
map.put(8,"LS_YJAJS");
map.put(9,"LS_FYS");
map.put(
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