update cache

easyexcel-core/src/main/java/com/alibaba/excel/util/ClassUtils.java

@@ -64,11 +64,11 @@ public class ClassUtils {
     /**
      * memory cache
      */
-    public static final ConcurrentHashMap<Class<?>, FieldCache> FIELD_CACHE = new ConcurrentHashMap<>();
+    public static final Map<FieldCacheKey, FieldCache> FIELD_CACHE = new ConcurrentHashMap<>();
     /**
      * thread local cache
      */
-    private static final ThreadLocal<Map<Class<?>, FieldCache>> FIELD_THREAD_LOCAL = new ThreadLocal<>();
+    private static final ThreadLocal<Map<FieldCacheKey, FieldCache>> FIELD_THREAD_LOCAL = new ThreadLocal<>();
 
     /**
      * The cache configuration information for each of the class
@@ -280,16 +280,16 @@ public class ClassUtils {
     public static FieldCache declaredFields(Class<?> clazz, ConfigurationHolder configurationHolder) {
         switch (configurationHolder.globalConfiguration().getFiledCacheLocation()) {
             case THREAD_LOCAL:
-                Map<Class<?>, FieldCache> fieldCacheMap = FIELD_THREAD_LOCAL.get();
+                Map<FieldCacheKey, FieldCache> fieldCacheMap = FIELD_THREAD_LOCAL.get();
                 if (fieldCacheMap == null) {
                     fieldCacheMap = MapUtils.newHashMap();
                     FIELD_THREAD_LOCAL.set(fieldCacheMap);
                 }
-                return fieldCacheMap.computeIfAbsent(clazz, key -> {
+                return fieldCacheMap.computeIfAbsent(new FieldCacheKey(clazz, configurationHolder), key -> {
                     return doDeclaredFields(clazz, configurationHolder);
                 });
             case MEMORY:
-                return FIELD_CACHE.computeIfAbsent(clazz, key -> {
+                return FIELD_CACHE.computeIfAbsent(new FieldCacheKey(clazz, configurationHolder), key -> {
                     return doDeclaredFields(clazz, configurationHolder);
                 });
             case NONE:
@@ -554,6 +554,23 @@ public class ClassUtils {
         private String fieldName;
     }
 
+    @Data
+    public static class FieldCacheKey {
+        private Class<?> clazz;
+        private Collection<String> excludeColumnFieldNames;
+        private Collection<Integer> excludeColumnIndexes;
+        private Collection<String> includeColumnFieldNames;
+        private Collection<Integer> includeColumnIndexes;
+
+        FieldCacheKey(Class<?> clazz, ConfigurationHolder configurationHolder) {
+            this.clazz = clazz;
+            WriteHolder writeHolder = (WriteHolder)configurationHolder;
+            this.excludeColumnFieldNames = writeHolder.excludeColumnFieldNames();
+            this.excludeColumnIndexes = writeHolder.excludeColumnIndexes();
+            this.includeColumnFieldNames = writeHolder.includeColumnFieldNames();
+            this.includeColumnIndexes = writeHolder.includeColumnIndexes();
+        }
+    }
 
     public static void removeThreadLocalCache() {
         FIELD_THREAD_LOCAL.remove();

easyexcel-test/src/test/java/com/alibaba/easyexcel/test/demo/write/WriteTest.java

@@ -4,11 +4,14 @@ import java.io.File;
 import java.io.InputStream;
 import java.net.URL;
 import java.util.ArrayList;
+import java.util.Arrays;
 import java.util.Date;
 import java.util.HashSet;
 import java.util.List;
 import java.util.Set;
 
+import com.alibaba.easyexcel.test.core.head.ComplexHeadData;
+import com.alibaba.easyexcel.test.demo.read.ConverterData;
 import com.alibaba.easyexcel.test.util.TestFileUtil;
 import com.alibaba.excel.EasyExcel;
 import com.alibaba.excel.ExcelWriter;
@@ -409,7 +412,7 @@ public class WriteTest {
     /**
      * 列宽、行高
      * <p>
-     * 1. 创建excel对应的实体对象 参照{@link WidthAndHeightData}
+     * 1. 创建excel对应的实体对象 参照{@link WidthAndHeightData }
      * <p>
      * 2. 使用注解{@link ColumnWidth}、{@link HeadRowHeight}、{@link ContentRowHeight}指定宽度或高度
      * <p>
@@ -703,6 +706,19 @@ public class WriteTest {
         EasyExcel.write(fileName).head(head()).sheet("模板").doWrite(dataList());
     }
 
+    @Test
+    public void sheetCol(){
+        String fileName = TestFileUtil.getPath() + "customCol" + System.currentTimeMillis() + ".xlsx";
+        try (ExcelWriter excelWriter = EasyExcel.write(fileName, DemoData.class).includeColumnFieldNames(Arrays.asList("string","date","doubleData")).build()) {
+            // 把sheet设置为不需要头 不然会输出sheet的头 这样看起来第一个table 就有2个头了
+            WriteSheet writeSheet = EasyExcel.writerSheet("模板").includeColumnFieldNames(Arrays.asList("string","date")).build();
+            excelWriter.write(data(), writeSheet);
+            writeSheet = EasyExcel.writerSheet(1,"模板1").needHead(false).build();
+            // 第二次写如也会创建头，然后在第一次的后面写入数据
+            WriteTable string = EasyExcel.writerTable().needHead(true).includeColumnFieldNames(Arrays.asList("string")).build();
+            excelWriter.write(data(),writeSheet,string);
+        }
+    }
     private List<LongestMatchColumnWidthData> dataLong() {
         List<LongestMatchColumnWidthData> list = ListUtils.newArrayList();
         for (int i = 0; i < 10; i++) {