两个应用场景：
- json和multiPart对象同时作为参数接收
- 文件下载 以及 下载文件名称的乱码问题
springBoot中静态html js中存放的位置：resources下的static文件夹
json和multiPart对象同时作为参数接收(postman好像不能模拟这种请求)
test.html
<!DOCTYPE html>
<html lang="en">
<head>
<meta charset="UTF-8">
<title>Title</title>
<script src="jquery.js"></script>
</head>
<body>
<input type="file" id="file" name="file"/>
<button id="button" name="">上传</button>
</body>
<script>
$(function () {
$("#button").click(function () {
//构建formData
var formData = new FormData();
//文件部分
var file = document.getElementById("file").files[0];
formData.append("file", file);
//json部分
var imageInfo = JSON.stringify({
"width": "240",
"height": "320"
});
//这里包装 可以直接转换成对象
formData.append('imageInfo', new Blob([imageInfo], {type: "application/json"}));
$.ajax({
url: "http://127.0.0.1:8001/test/upload",
type: "post",
//忽略contentType
contentType: false,
//取消序列换 formData本来就是序列化好的
processData: false,
dataType: "json",
data: formData,
success: function (response) {
alert(response);
},
error: function () {
}
});
});
})
</script>
</html>
实体类：ImageInfo.java
package com.huang.pojo;
public class ImageInfo {
private String width;
private String height;
public String getWidth() {
return width;
}
public void setWidth(String width) {
this.width = width;
}
public String getHeight() {
return height;
}
public void setHeight(String height) {
this.height = height;
}
@Override
public String toString() {
return "ImageInfo{" +
"width='" + width + '\'' +
", height='" + height + '\'' +
'}';
}
}
TestController.java
package com.huang.controller;
import com.huang.pojo.ImageInfo;
import org.springframework.stereotype.Controller;
import org.springframework.web.bind.annotation.PostMapping;
import org.springframework.web.bind.annotation.RequestMapping;
import org.springframework.web.bind.annotation.RequestPart;
import org.springframework.web.multipart.MultipartFile;
@Controller
@RequestMapping("/test")
public class TestController {
@PostMapping("/upload")
public void upload(@RequestPart("file")MultipartFile file, @RequestPart("imageInfo")ImageInfo imageInfo) {
System.out.println("file = " + file);
System.out.println("imageInfo = " + imageInfo);
}
}
文件下载 以及 下载文件名称的乱码问题
URLEncoder.encode
response.setContentType(new MimetypesFileTypeMap().getContentType(tempZipFile));
response.setHeader("Content-disposition", "attachment;filename="+ URLEncoder.encode(fileName, "UTF-8"));
//返回文件字节数组
try {
BufferedInputStream in = new BufferedInputStream(new FileInputStream(tempZipFile));
BufferedOutputStream out = new BufferedOutputStream(response.getOutputStream());
byte[] buffer = new byte[10240];
int length = 0;
while ((length = in.read(buffer)) > 0) {
out.write(buffer, 0, length);
}
out.flush();
} catch (IOException e) {
e.printStackTrace();
}
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