自适应文字长度

src/com/engine/salary/util/page/SalaryPageUtil.java

@@ -3,6 +3,9 @@ package com.engine.salary.util.page;
 import com.github.pagehelper.PageHelper;
 import org.apache.commons.collections4.CollectionUtils;
 
+import java.awt.*;
+import java.awt.font.FontRenderContext;
+import java.awt.geom.Rectangle2D;
 import java.util.ArrayList;
 import java.util.Collections;
 import java.util.List;
@@ -91,18 +94,23 @@ public class SalaryPageUtil {
                 endIndex > source.size() ? source.size() : endIndex);
     }
 
+
+    static Font font = new Font("Arial", Font.PLAIN, 12); // 设置字体样式、大小等属性
+    static FontRenderContext frc = new FontRenderContext(null, true, false);
+//        GraphicsEnvironment ge = GraphicsEnvironment.getLocalGraphicsEnvironment();
+
+    /**
+     * 自适应文字长度
+     * @param chars
+     * @param width
+     * @return
+     */
     public static String selfAdaption(String chars, Integer width) {
-        if (width != null && width != 0){
+        if (width != null && width != 0) {
             return width + "";
         }
-        int adaption = 0;
-
-        if (chars != null) {
-            adaption = chars.length() * 12 + 55;
-        }
-        if (adaption < 79) {
-            adaption = 79;
-        }
-        return adaption + "";
+        Rectangle2D bounds = font.getStringBounds(chars, frc);
+        int pxLength = (int) Math.ceil(bounds.getWidth());
+        return pxLength + 55 + "";
     }
 }