题干上传图片提交

src/main/java/com/exam/controller/ItemController.java

@@ -49,7 +49,7 @@ public class ItemController {
             return ApiResultHandler.buildApiResult(400,"选择题数据库获取失败",null);
         }
         for (Integer number : changeNumbers) {
-            PaperManage paperManage = new PaperManage(paperId,1,number);
+            PaperManage paperManage = new PaperManage(paperId,1,number,null);
             int index = paperService.add(paperManage);
             if(index==0)
                 return ApiResultHandler.buildApiResult(400,"选择题组卷保存失败",null);
@@ -60,7 +60,7 @@ public class ItemController {
         if(fills==null)
             return ApiResultHandler.buildApiResult(400,"填空题数据库获取失败",null);
         for (Integer fillNum : fills) {
-            PaperManage paperManage = new PaperManage(paperId,2,fillNum);
+            PaperManage paperManage = new PaperManage(paperId,2,fillNum,null);
             int index = paperService.add(paperManage);
             if(index==0)
                 return ApiResultHandler.buildApiResult(400,"填空题题组卷保存失败",null);
@@ -70,7 +70,7 @@ public class ItemController {
         if(fills==null)
             return ApiResultHandler.buildApiResult(400,"判断题数据库获取失败",null);
         for (Integer judge : judges) {
-            PaperManage paperManage = new PaperManage(paperId,3,judge);
+            PaperManage paperManage = new PaperManage(paperId,3,judge,null);
             int index = paperService.add(paperManage);
             if(index==0)
                 return ApiResultHandler.buildApiResult(400,"判断题题组卷保存失败",null);

src/main/java/com/exam/controller/PaperController.java

@@ -46,7 +46,7 @@ public class PaperController {
     }
 
     @PostMapping("/paperManage")
-    public ApiResult add(@RequestBody PaperManage paperManage) {
+    public ApiResult add(PaperManage paperManage) {
         int res = paperService.add(paperManage);
         if (res != 0) {
             return ApiResultHandler.buildApiResult(200,"添加成功",res);

src/main/java/com/exam/entity/PaperManage.java

@@ -3,6 +3,7 @@ package com.exam.entity;
 import lombok.AllArgsConstructor;
 import lombok.Data;
 import lombok.NoArgsConstructor;
+import org.springframework.web.multipart.MultipartFile;
 
 @Data
 @NoArgsConstructor
@@ -14,5 +15,6 @@ public class PaperManage {
 
     private Integer questionId;
 
+    private MultipartFile[] files;// 照片二进制
 
 }
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src/main/java/com/exam/entity/PaperPhoto.java

+package com.exam.entity;
+
+import lombok.Data;
+import org.springframework.web.multipart.MultipartFile;
+
+@Data
+public class PaperPhoto {
+    private Integer paperId;
+
+    private Integer questionType;
+
+    private Integer questionId;
+
+    private String img;
+
+
+}
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src/main/java/com/exam/mapper/PaperPhotoMapper.java

+package com.exam.mapper;
+
+import com.exam.entity.PaperPhoto;
+import org.apache.ibatis.annotations.Insert;
+import org.apache.ibatis.annotations.Mapper;
+
+
+@Mapper
+public interface PaperPhotoMapper {
+    @Insert("insert into paper_photo(paperId,questionType,questionId,img) values " +
+            "(#{paperId},#{questionType},#{questionId},#{img})")
+    int add(PaperPhoto paperManage);
+}

src/main/java/com/exam/serviceimpl/PaperServiceImpl.java

@@ -3,11 +3,17 @@ package com.exam.serviceimpl;
 import com.baomidou.mybatisplus.core.metadata.IPage;
 import com.baomidou.mybatisplus.extension.plugins.pagination.Page;
 import com.exam.entity.PaperManage;
+import com.exam.entity.PaperPhoto;
 import com.exam.mapper.PaperMapper;
+import com.exam.mapper.PaperPhotoMapper;
 import com.exam.service.PaperService;
+import com.exam.util.Base64Util;
+import org.springframework.beans.BeanUtils;
 import org.springframework.beans.factory.annotation.Autowired;
 import org.springframework.stereotype.Service;
+import org.springframework.web.multipart.MultipartFile;
 
+import java.io.IOException;
 import java.util.List;
 
 @Service
@@ -15,6 +21,8 @@ public class PaperServiceImpl implements PaperService {
 
     @Autowired
     private PaperMapper paperMapper;
+    @Autowired
+    private PaperPhotoMapper paperPhotoMapper;
     @Override
     public List<PaperManage> findAll() {
         return paperMapper.findAll();
@@ -27,7 +35,26 @@ public class PaperServiceImpl implements PaperService {
 
     @Override
     public int add(PaperManage paperManage) {
-        return paperMapper.add(paperManage);
+        int add = paperMapper.add(paperManage);
+        if(add >0 ){
+            // 照片处理
+            if (paperManage.getFiles() != null) {
+                String base64 = "";
+                for (MultipartFile file : paperManage.getFiles()) {
+                    try {
+                        base64 = "data:image/jpg;base64," + Base64Util.getBase64(file);
+                        // 入照片库
+                        PaperPhoto paperPhoto = new PaperPhoto();
+                        BeanUtils.copyProperties(paperManage,paperPhoto);
+                        paperPhoto.setImg(base64);
+                        paperPhotoMapper.add(paperPhoto);
+                    } catch (IOException e) {
+                        e.printStackTrace();
+                    }
+                }
+            }
+        }
+        return add;
     }
 
 }

src/main/java/com/exam/util/Base64Util.java

+package com.exam.util;
+
+
+import org.springframework.web.multipart.MultipartFile;
+import sun.misc.BASE64Decoder;
+import sun.misc.BASE64Encoder;
+
+import java.io.ByteArrayOutputStream;
+import java.io.IOException;
+import java.io.InputStream;
+import java.io.UnsupportedEncodingException;
+import java.net.HttpURLConnection;
+import java.net.URL;
+import java.util.Base64;
+
+/**
+ * Base64加密，解密
+ */
+public class Base64Util {
+
+	/**
+	 * 将 s 进行 BASE64 编码
+	 *
+	 * @return String
+	 * @author lifq
+	 * @date 2015-3-4 上午09:24:02
+	 */
+	public static String encode(String s) {
+		if (s == null)
+			return null;
+		String res = "";
+		try {
+			res = new BASE64Encoder().encode(s.getBytes("utf-8"));
+		} catch (UnsupportedEncodingException e) {
+			// TODO Auto-generated catch block
+			e.printStackTrace();
+		}
+		return res;
+	}
+
+	/**
+	 * 将 BASE64 编码的字符串 s 进行解码
+	 *
+	 * @return String
+	 * @author lifq
+	 * @date 2015-3-4 上午09:24:26
+	 */
+	public static String decode(String s) {
+		if (s == null)
+			return null;
+		BASE64Decoder decoder = new BASE64Decoder();
+		try {
+			byte[] b = decoder.decodeBuffer(s);
+			return new String(b,"utf-8");
+		} catch (Exception e) {
+			return null;
+		}
+	}
+
+	/**
+	 * 图片转成base64字符串
+	 */
+	public static String getBase64(MultipartFile imageFile) throws IOException {
+		BASE64Encoder base64Encoder =new BASE64Encoder();
+		String base64EncoderImg =base64Encoder.encode(imageFile.getBytes());
+		return base64EncoderImg;
+	}
+
+	public static void main(String[] args) {
+		System.out.println(Base64Util.encode("0"));
+		System.out.println(Base64Util.decode("MA=="));
+
+	}
+
+
+	/**
+	 * 将网络路径图片转为base64的格式
+	 * @param requestUrl 请求网络路径
+	 * @param photoType 响应的格式(png,jpg,ico等)
+	 * @throws Exception
+	 */
+	public static String getUrlImageToBase64(String requestUrl, String photoType) throws Exception {
+		ByteArrayOutputStream data = new ByteArrayOutputStream();
+		try {
+			// 创建URL
+			URL url = new URL(requestUrl);
+			byte[] by = new byte[1024];
+
+			// 创建链接
+			HttpURLConnection conn = (HttpURLConnection) url.openConnection();
+			conn.setRequestMethod("GET");
+			conn.setConnectTimeout(5 * 1000);
+			InputStream is = conn.getInputStream();
+
+			// 将内容读取内存中
+			int len = -1;
+			while ((len = is.read(by)) != -1) {
+				data.write(by, 0, len);
+			}
+
+			// 关闭流
+			is.close();
+		} catch (IOException e) {
+			e.printStackTrace();
+		}
+
+		// 对字节数组Base64编码
+		Base64.Encoder encoder = Base64.getEncoder();
+		return "data:image/" + photoType + ";base64," + encoder.encodeToString(data.toByteArray());
+	}
+
+}
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