用Java實現給圖片新增文字水印-原始碼分享
阿新 • • 發佈：2018-11-09
直接上原始碼：
單張瓦片新增單個文字水印、可設定水印文字內容，字型，顏色，旋轉角度，透明度
controller層
import org.springframework.web.bind.annotation.GetMapping; import org.springframework.web.bind.annotation.PostMapping; import org.springframework.web.bind.annotation.RequestBody; import org.springframework.web.bind.annotation.RequestMapping; import org.springframework.web.bind.annotation.RestController; import com.geovis.domain.DataObject; import com.geovis.domain.TileWatermark; import com.geovis.service.TileService; import java.awt.AlphaComposite; import java.awt.Color; import java.awt.Font; import java.awt.Graphics2D; import java.awt.Image; import java.awt.image.BufferedImage; import java.io.File; import java.util.Map; import java.util.concurrent.ConcurrentHashMap; import javax.annotation.Resource; import javax.imageio.ImageIO; import io.swagger.annotations.Api; import io.swagger.annotations.ApiOperation; import org.slf4j.Logger; import org.slf4j.LoggerFactory; @RestController @Api(description= "瓦片") @RequestMapping("/api/v1") public class TileController { private final Logger logger = LoggerFactory.getLogger(TileController.class); @Resource private TileService tileService; /** * 單張瓦片新增單個文字水印、可設定水印文字內容，字型，顏色，旋轉角度，透明度 * @param tileWatermark * @return * @throws Exception */ //@HystrixCommand @ApiOperation(value = "單張瓦片新增單個文字水印",notes = "可設定水印文字內容，位置，字型，顏色，旋轉角度，透明度") @GetMapping(value = "/watermarks") public Map<String, String> watermarks(@RequestBody TileWatermark tileWatermark) throws Exception { Map<String, String> watermark = new ConcurrentHashMap<String,String>(); String resultInfo = tileService.watermarkBySingleText(tileWatermark); watermark.put("resultInfo", resultInfo); return watermark; } }
實體類
import java.awt.Color; import java.io.Serializable; import io.swagger.annotations.ApiParam; public class TileWatermark implements Serializable{ /** * */ private static final long serialVersionUID = 8870574699118240793L; //需要加水印的瓦片路徑 private String tilePath; //新增水印後瓦片輸出路徑 private String tileOutputPath; //輸出瓦片名稱 private String tileOutputName; //輸出瓦片型別 private String tileOutputType; //水印文字內容 private String watermarkContent; //水印文字位置 private String watermarkPosition; //水印文字字型型別 private String watermarkFontType; //水印文字字型風格 private String watermarkFontStyle; //水印文字字型大小 private Integer watermarkFontSize; //水印文字顏色 private Color watermarkColor; //水印文字旋轉角度,null表示不旋轉 private Integer watermarkDegree; //水印文字透明度 private float watermarkAlpha; public String getTilePath() { return tilePath; } public void setTilePath(String tilePath) { this.tilePath = tilePath; } public String getTileOutputPath() { return tileOutputPath; } public void setTileOutputPath(String tileOutputPath) { this.tileOutputPath = tileOutputPath; } public String getTileOutputName() { return tileOutputName; } public void setTileOutputName(String tileOutputName) { this.tileOutputName = tileOutputName; } public String getTileOutputType() { return tileOutputType; } public void setTileOutputType(String tileOutputType) { this.tileOutputType = tileOutputType; } public String getWatermarkContent() { return watermarkContent; } public void setWatermarkContent(String watermarkContent) { this.watermarkContent = watermarkContent; } public String getWatermarkPosition() { return watermarkPosition; } public void setWatermarkPosition(String watermarkPosition) { this.watermarkPosition = watermarkPosition; } public String getWatermarkFontType() { return watermarkFontType; } public void setWatermarkFontType(String watermarkFontType) { this.watermarkFontType = watermarkFontType; } public String getWatermarkFontStyle() { return watermarkFontStyle; } public void setWatermarkFontStyle(String watermarkFontStyle) { this.watermarkFontStyle = watermarkFontStyle; } public Integer getWatermarkFontSize() { return watermarkFontSize; } public void setWatermarkFontSize(Integer watermarkFontSize) { this.watermarkFontSize = watermarkFontSize; } public Color getWatermarkColor() { return watermarkColor; } public void setWatermarkColor(Color watermarkColor) { this.watermarkColor = watermarkColor; } public Integer getWatermarkDegree() { return watermarkDegree; } public void setWatermarkDegree(Integer watermarkDegree) { this.watermarkDegree = watermarkDegree; } public float getWatermarkAlpha() { return watermarkAlpha; } public void setWatermarkAlpha(float watermarkAlpha) { this.watermarkAlpha = watermarkAlpha; } }
service
import java.awt.Color;
import com.geovis.domain.TileFuse;
import com.geovis.domain.TileWatermark;
public interface TileService {
String watermarkBySingleText(TileWatermark tileWatermark);
}
service實現層
import java.awt.AlphaComposite; import java.awt.Color; import java.awt.Font; import java.awt.Graphics2D; import java.awt.Image; import java.awt.image.BufferedImage; import java.io.File; import java.io.IOException; import javax.imageio.ImageIO; import org.springframework.stereotype.Service; import com.geovis.domain.TileFuse; import com.geovis.domain.TileWatermark; import com.geovis.service.TileService; @Service public class TileServiceImpl implements TileService { @Override public String watermarkBySingleText(TileWatermark tileWatermark) { Color watermarkColor = tileWatermark.getWatermarkColor(); Integer watermarkDegree = tileWatermark.getWatermarkDegree(); float watermarkAlpha = tileWatermark.getWatermarkAlpha(); String watermarkContent = tileWatermark.getWatermarkContent(); String tileOutputPath = tileWatermark.getTileOutputPath(); String tileOutputName = tileWatermark.getTileOutputName(); String tileOutputType = tileWatermark.getTileOutputType(); String resultinfo = "瓦片新增單個水印出錯"; try { // 讀取原瓦片資訊 File file = new File(tileWatermark.getTilePath()); if (!file.isFile()) { return file + " 不是一個瓦片檔案!"; } Image tile = ImageIO.read(file); int width = tile.getWidth(null); int height = tile.getHeight(null); // 加水印 BufferedImage bufferedImage = new BufferedImage(width, height, BufferedImage.TYPE_INT_RGB); // 得到畫筆物件 Graphics2D g = bufferedImage.createGraphics(); g.drawImage(tile, 0, 0, width, height, null); // 設定對線段的鋸齒狀邊緣處理 // g.setRenderingHint(RenderingHints.KEY_INTERPOLATION,RenderingHints.VALUE_INTERPOLATION_BILINEAR); // g.drawImage(tile.getScaledInstance(tile.getWidth(null),tile.getHeight(null), Image.SCALE_SMOOTH), 0, 0, null); // 設定水印字型樣式 Font font = new Font("微軟雅黑", Font.PLAIN, 50); g.setFont(font); // 根據圖片的背景設定水印顏色 g.setColor(watermarkColor); // 設定水印旋轉角度 if (null != watermarkDegree) { // 設定水印旋轉 g.rotate(Math.toRadians(watermarkDegree), (double) bufferedImage.getWidth() / 2, (double) bufferedImage.getHeight() / 2); } // 設定水印透明度 g.setComposite(AlphaComposite.getInstance(AlphaComposite.SRC_ATOP, watermarkAlpha)); // 水印位置 int x = width / 2; int y = height / 2; g.drawString(watermarkContent, x, y); g.dispose(); // 輸出圖片 File sf = new File(tileOutputPath, tileOutputName + "." + tileOutputType); ImageIO.write(bufferedImage, tileOutputType, sf); // 儲存圖片 resultinfo = "瓦片新增單個水印成功"; } catch (Exception e) { e.printStackTrace(); } return resultinfo; } }