我有字节数组byteImg,但我想从字节数组在 Controller jpeg中进行渲染:
def getSelfie = new HTTPBuilder()
getSelfie.request(fullSelfieUrl, GET, JSON) { req ->
headers.'X-DreamFactory-Session-Token' = session_id
headers.'X-DreamFactory-Application-Name' = 'checkReg'
response.success = { resp, reader ->
assert resp.statusLine.statusCode == 200
println "Get response: ${resp.statusLine}"
println "Content-Type: ${resp.headers.'Content-Type'}"
resp = reader as grails.converters.JSON
String str = resp.toString()
JSONObject jsonObject = new JSONObject(str)
selfieRend = jsonObject.getString("selfie")
byteImg = selfieRend.getBytes()
render byteImg
return byteImg
}
response.'404' = {
println 'Information not found'
}
}
怎么做?非常感谢
最佳答案
我还没有测试过,但是按照wiki,它应该可以工作:
def getSelfie(){
def http = new AsyncHTTPBuilder(
poolSize : 4,
uri : fullSelfieUrl,
contentType : ContentType.JSON )
def result = http.get() { resp, json -> json.selfie.bytes }
while( !result.done ) Thread.sleep 1000
def bytes = result.get()
response.setHeader 'Content-disposition', "inline; filename=someName.jpg"
response.setHeader 'Content-Type', 'image/jpg'
response.outputStream.withStream{ it << bytes }
}
关于image - Grails Controller :如何从字节数组渲染图像,我们在Stack Overflow上找到一个类似的问题: https://stackoverflow.com/questions/34371245/