forked from fanruan/easyexcel
zhuangjiaju
5 years ago
28 changed files with 489 additions and 68 deletions
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package com.alibaba.excel.analysis.v07; |
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import org.slf4j.Logger; |
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import org.slf4j.LoggerFactory; |
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import org.xml.sax.Attributes; |
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import org.xml.sax.SAXException; |
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import org.xml.sax.helpers.DefaultHandler; |
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import com.alibaba.excel.cache.Cache; |
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/** |
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* Sax read sharedStringsTable.xml |
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* |
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* @author zhuangjiaju |
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*/ |
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public class SharedStringsTableHandler extends DefaultHandler { |
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private static final Logger LOGGER = LoggerFactory.getLogger(SharedStringsTableHandler.class); |
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private String currentData; |
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private boolean isT; |
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private int index = 0; |
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private Cache cache; |
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public SharedStringsTableHandler(Cache cache) { |
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this.cache = cache; |
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} |
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@Override |
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public void startElement(String uri, String localName, String name, Attributes attributes) throws SAXException { |
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if ("t".equals(name)) { |
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currentData = null; |
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isT = true; |
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} |
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} |
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@Override |
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public void endElement(String uri, String localName, String name) throws SAXException { |
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if ("t".equals(name)) { |
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currentData = null; |
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isT = false; |
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} |
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} |
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@Override |
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public void characters(char[] ch, int start, int length) throws SAXException { |
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if (isT) { |
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cache.put(index++, new String(ch, start, length)); |
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if (index % 100000 == 0) { |
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LOGGER.info("row:{} ,mem:{},data:{}", index, Runtime.getRuntime().totalMemory()); |
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} |
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} |
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} |
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} |
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package com.alibaba.excel.cache; |
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/** |
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* cache |
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* |
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* @author zhuangjiaju |
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*/ |
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public interface Cache { |
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/** |
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* put |
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* |
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* @param key |
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* @param value |
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*/ |
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void put(Integer key, String value); |
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/** |
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* get |
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* |
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* @param key |
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* @return |
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*/ |
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String get(Integer key); |
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void finish(); |
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} |
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package com.alibaba.excel.cache; |
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import java.io.File; |
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import java.util.Map; |
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import org.ehcache.PersistentCacheManager; |
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import org.ehcache.config.builders.CacheConfigurationBuilder; |
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import org.ehcache.config.builders.CacheManagerBuilder; |
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import org.ehcache.config.builders.ResourcePoolsBuilder; |
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import org.ehcache.config.units.MemoryUnit; |
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import com.alibaba.excel.util.POITempFile; |
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/** |
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* Default cache |
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* |
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* @author zhuangjiaju |
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*/ |
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public class Ehcache implements Cache { |
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private org.ehcache.Cache<Integer, Map<Integer, String>> cache; |
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public Ehcache() { |
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File file = POITempFile.createCacheTmpFile(); |
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PersistentCacheManager persistentCacheManager = |
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CacheManagerBuilder.newCacheManagerBuilder().with(CacheManagerBuilder.persistence(file)) |
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.withCache("cache", CacheConfigurationBuilder.newCacheConfigurationBuilder(Integer.class, String.class, |
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ResourcePoolsBuilder.newResourcePoolsBuilder().disk(10, MemoryUnit.GB))) |
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.build(true); |
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this.cache = persistentCacheManager.getCache("cache", Integer.class, String.class); |
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} |
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@Override |
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public void put(Integer key, String value) { |
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cache.put(key, value); |
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} |
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@Override |
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public String get(Integer key) { |
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return cache.get(key); |
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} |
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@Override |
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public void finish() { |
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} |
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} |
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package com.alibaba.excel.cache; |
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import org.apache.poi.xssf.model.SharedStringsTable; |
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/** |
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* Default cache |
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* |
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* @author zhuangjiaju |
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*/ |
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public class SharedStringsTableCache implements Cache { |
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private SharedStringsTable sharedStringsTable; |
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public SharedStringsTableCache(SharedStringsTable sharedStringsTable) { |
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this.sharedStringsTable = sharedStringsTable; |
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} |
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@Override |
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public void put(Integer key, String value) { |
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throw new UnsupportedOperationException("Can not put value"); |
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} |
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@Override |
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public String get(Integer key) { |
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return sharedStringsTable.getItemAt(key).toString(); |
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} |
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@Override |
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public void finish() { |
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} |
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} |
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package com.alibaba.easyexcel.test.ehcache; |
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import java.io.File; |
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import org.ehcache.Cache; |
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import org.ehcache.PersistentCacheManager; |
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import org.ehcache.config.builders.CacheConfigurationBuilder; |
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import org.ehcache.config.builders.CacheManagerBuilder; |
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import org.ehcache.config.builders.ResourcePoolsBuilder; |
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import org.ehcache.config.units.MemoryUnit; |
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import org.junit.Ignore; |
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import org.junit.Test; |
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import org.slf4j.Logger; |
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import org.slf4j.LoggerFactory; |
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import com.alibaba.excel.util.POITempFile; |
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/** |
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* @author zhuangjiaju |
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*/ |
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@Ignore |
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public class EncacheTest { |
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private static final Logger LOGGER = LoggerFactory.getLogger(EncacheTest.class); |
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@Test |
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public void cache() { |
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File file = POITempFile.createCacheTmpFile(); |
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PersistentCacheManager persistentCacheManager = |
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CacheManagerBuilder.newCacheManagerBuilder().with(CacheManagerBuilder.persistence(file)) |
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.withCache("cache", CacheConfigurationBuilder.newCacheConfigurationBuilder(Integer.class, String.class, |
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ResourcePoolsBuilder.newResourcePoolsBuilder().disk(10, MemoryUnit.GB))) |
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.build(true); |
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Cache<Integer, String> cache = persistentCacheManager.getCache("cache", Integer.class, String.class); |
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cache.put(1, "测试1"); |
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LOGGER.info("cache:{}", cache.get(1)); |
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persistentCacheManager.close(); |
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LOGGER.info("close"); |
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POITempFile.delete(file); |
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} |
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} |
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package com.alibaba.easyexcel.test.read.large; |
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import java.io.InputStream; |
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import org.junit.Test; |
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import org.slf4j.Logger; |
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import org.slf4j.LoggerFactory; |
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import com.alibaba.easyexcel.test.util.FileUtil; |
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import com.alibaba.excel.EasyExcelFactory; |
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import com.alibaba.excel.ExcelReader; |
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import com.alibaba.excel.metadata.Sheet; |
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/** |
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* Simple data test |
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* |
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* @author zhuangjiaju |
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*/ |
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public class LargeData07Test { |
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private static final Logger LOGGER = LoggerFactory.getLogger(LargeData07Test.class); |
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@Test |
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public void large() throws Exception { |
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LOGGER.info("start"); |
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long start = System.currentTimeMillis(); |
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InputStream inputStream = FileUtil.readFile("large/large07.xlsx"); |
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ExcelReader excelReader = EasyExcelFactory.getReader(inputStream, new LargeDataListener()); |
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excelReader.read(new Sheet(1, 1)); |
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inputStream.close(); |
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LOGGER.info("time:{}", System.currentTimeMillis() - start); |
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} |
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} |
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package com.alibaba.easyexcel.test.read.large; |
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import org.slf4j.Logger; |
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import org.slf4j.LoggerFactory; |
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import com.alibaba.easyexcel.test.read.simple.SimpleDataListener; |
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import com.alibaba.excel.context.AnalysisContext; |
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import com.alibaba.excel.event.AnalysisEventListener; |
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import com.alibaba.fastjson.JSON; |
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/** |
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* @author zhuangjiaju |
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*/ |
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public class LargeDataListener extends AnalysisEventListener<Object> { |
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private static final Logger LOGGER = LoggerFactory.getLogger(SimpleDataListener.class); |
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private int count = 0; |
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@Override |
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public void invoke(Object object, AnalysisContext context) { |
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count++; |
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if (count % 100000 == 0) { |
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LOGGER.info("row:{} ,mem:{},data:{}", count, Runtime.getRuntime().totalMemory(), JSON.toJSONString(object)); |
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} |
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} |
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@Override |
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public void doAfterAllAnalysed(AnalysisContext context) {} |
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} |
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@ -0,0 +1,16 @@
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package com.alibaba.easyexcel.test.read.simple; |
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import com.alibaba.excel.annotation.ExcelProperty; |
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import lombok.Data; |
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/** |
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* @author zhuangjiaju |
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*/ |
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@Data |
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public class SimpleData { |
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@ExcelProperty("字符串1") |
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private String string1; |
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@ExcelProperty("字符串2") |
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private String string2; |
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} |
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@ -0,0 +1,26 @@
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package com.alibaba.easyexcel.test.read.simple; |
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import java.io.InputStream; |
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import org.junit.Test; |
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import com.alibaba.easyexcel.test.util.FileUtil; |
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import com.alibaba.excel.EasyExcelFactory; |
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import com.alibaba.excel.ExcelReader; |
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import com.alibaba.excel.metadata.Sheet; |
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/** |
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* Simple data test |
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* |
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* @author zhuangjiaju |
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*/ |
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public class SimpleData07Test { |
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@Test |
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public void simple() throws Exception { |
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InputStream inputStream = FileUtil.readFile("simple/simple07.xlsx"); |
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ExcelReader excelReader = EasyExcelFactory.getReader(inputStream, new SimpleDataListener()); |
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excelReader.read(new Sheet(1, 1), SimpleData.class); |
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inputStream.close(); |
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} |
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} |
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package com.alibaba.easyexcel.test.read.simple; |
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import java.util.ArrayList; |
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import java.util.List; |
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import org.slf4j.Logger; |
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import org.slf4j.LoggerFactory; |
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import com.alibaba.excel.context.AnalysisContext; |
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import com.alibaba.excel.event.AnalysisEventListener; |
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import com.alibaba.fastjson.JSON; |
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/** |
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* @author zhuangjiaju |
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*/ |
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public class SimpleDataListener extends AnalysisEventListener<Object> { |
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private static final Logger LOGGER = LoggerFactory.getLogger(SimpleDataListener.class); |
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List<Object> list = new ArrayList<Object>(); |
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@Override |
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public void invoke(Object object, AnalysisContext context) { |
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list.add(object); |
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LOGGER.info("data:{}", JSON.toJSONString(object)); |
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} |
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@Override |
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public void doAfterAllAnalysed(AnalysisContext context) { |
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assert list.size() == 10; |
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} |
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} |
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