java Maven中常用命令和插件

package com.geekbang.ppttools; import com.google.common.base.Splitter; import org.apache.poi.xslf.usermodel.XMLSlideShow; import org.apache.poi.xslf.usermodel.XSLFShape; import org.apache.poi.xslf.usermodel.XSLFSlide; import org.apache.poi.xslf.usermodel.XSLFTextShape; import java.io.File; import java.io.FileInputStream; public class PPTXUtils { public static String getToc(File file) throws Exception { XMLSlideShow ppt = new XMLSlideShow(new FileInputStream(file)); StringBuilder ret = new StringBuilder(); XSLFSlide slide = ppt.getSlides().get(0); int currCha = -1; int count = 1; String title = null; boolean firstLine = true; for (XSLFShape shape : slide.getShapes()) { if (shape instanceof XSLFTextShape) { XSLFTextShape textShape = (XSLFTextShape) shape; String text = textShape.getText(); try { currCha = Integer.parseInt(text); if (currCha >= 0 && title != null) { ret.append("# ").append(currCha).append('.').append(title).append('\n'); } continue; } catch (Exception ex) { } for (String line : Splitter.on("\n").omitEmptyStrings().trimResults().split(text)) { if (firstLine) { title = line; firstLine = false; } else { ret.append(count).append(". ").append(line).append('\n'); count++; } } } } return ret.toString(); } }