如何将MultipartFile文件放入json体
时间: 2023-12-05 11:39:58 浏览: 39
可以使用Jackson库将MultipartFile文件转换为JSON对象,然后将其放入JSON体中。具体步骤如下:
1.导入Jackson库的依赖:
```xml
<dependency>
<groupId>com.fasterxml.jackson.core</groupId>
<artifactId>jackson-databind</artifactId>
<version>2.12.3</version>
</dependency>
```
2.将MultipartFile文件转换为JSON对象:
```java
ObjectMapper mapper = new ObjectMapper();
JsonNode rootNode = mapper.readTree(json_file.getInputStream());
```
3.将JSON对象放入JSON体中:
```java
ObjectNode jsonBody = mapper.createObjectNode();
jsonBody.set("file", rootNode);
```
完整代码如下:
```java
public String uploadNproductJsonFile(@RequestParam("file") MultipartFile json_file) {
try {
ObjectMapper mapper = new ObjectMapper();
JsonNode rootNode = mapper.readTree(json_file.getInputStream());
ObjectNode jsonBody = mapper.createObjectNode();
jsonBody.set("file", rootNode);
// 发送jsonBody到服务器
// ...
return "上传成功";
} catch (IOException e) {
e.printStackTrace();
return "上传失败";
}
}
```