Java 读取内容类型为application/vnd.oracle.adf.resourceitem+的rest服务;json
我有一个内容类型为application/vnd.oracle.adf.resourceitem+json的Web服务 通过点击此服务获得的响应的HttpEntity如下所示Java 读取内容类型为application/vnd.oracle.adf.resourceitem+的rest服务;json,java,web-services,rest,http-headers,oracle-adf,Java,Web Services,Rest,Http Headers,Oracle Adf,我有一个内容类型为application/vnd.oracle.adf.resourceitem+json的Web服务 通过点击此服务获得的响应的HttpEntity如下所示 ResponseEntityProxy{[Content-Type: application/vnd.oracle.adf.resourceitem+json,Content-Length: 3,Chunked: false]} 当我试图将这个HttpEntity转换成字符串时,它会给我一个空白字符串{} 下面是我试图将
ResponseEntityProxy{[Content-Type: application/vnd.oracle.adf.resourceitem+json,Content-Length: 3,Chunked: false]}
当我试图将这个HttpEntity转换成字符串时,它会给我一个空白字符串{}
下面是我试图将HttpEntity
转换为字符串的方法
一,
String strResponse=EntityUtils.toString(response.getEntity())代码>
二,
三,
All返回字符串->{}
谁能告诉我我做错了什么
这是因为内容类型吗?上面的代码仍然使用空JSON对象给出相同的响应。所以我修改并编写了下面的代码。这台似乎运行得很好
URL url = new URL(urlString);
HttpsURLConnection con = (HttpsURLConnection) url.openConnection();
con.setDoOutput(true);
con.setRequestMethod("POST");
con.addRequestProperty("Authorization", getAuthToken());
con.addRequestProperty("Content-Type", "application/vnd.oracle.adf.resourceitem+json;charset=utf-8");
String input = String.format("{\"%s\":\"%s\",\"%s\":\"%s\"}", field, value, field2, value2);
System.out.println(input);
OutputStream outputStream = con.getOutputStream();
outputStream.write(input.getBytes());
outputStream.flush();
con.connect();
System.out.println(con.getResponseCode());
// Uncompressing gzip content encoding
GZIPInputStream gzip = new GZIPInputStream(con.getInputStream());
StringBuffer szBuffer = new StringBuffer();
byte tByte[] = new byte[1024];
while (true) {
int iLength = gzip.read(tByte, 0, 1024);
if (iLength < 0) {
break;
}
szBuffer.append(new String(tByte, 0, iLength));
}
con.disconnect();
returnString = szBuffer.toString();
以防有人面临同样的问题。让我分享我所面临的挑战,以及我是如何纠正这些挑战的
以上代码适用于所有内容类型/方法。可用于任何类型(GET、POST、PUT、DELETE)。
根据我的要求,我有一个POST网站服务
内容编码→gzip
内容类型→application/vnd.oracle.adf.resourceitem+json
挑战:我能够得到正确的响应代码,但是我得到了垃圾字符作为我的响应字符串
解决方案:这是因为输出被压缩为gzip
格式,需要解压缩
上面还提到了解压缩gzip内容编码的代码
希望它能帮助未来的用户
response.getEntity().writeTo(new FileOutputStream(new File("C:\\Users\\harshita.sethi\\Documents\\Chabot\\post.txt")));
URL url = new URL(urlString);
HttpsURLConnection con = (HttpsURLConnection) url.openConnection();
con.setDoOutput(true);
con.setRequestMethod("POST");
con.addRequestProperty("Authorization", getAuthToken());
con.addRequestProperty("Content-Type", "application/vnd.oracle.adf.resourceitem+json;charset=utf-8");
String input = String.format("{\"%s\":\"%s\",\"%s\":\"%s\"}", field, value, field2, value2);
System.out.println(input);
OutputStream outputStream = con.getOutputStream();
outputStream.write(input.getBytes());
outputStream.flush();
con.connect();
System.out.println(con.getResponseCode());
// Uncompressing gzip content encoding
GZIPInputStream gzip = new GZIPInputStream(con.getInputStream());
StringBuffer szBuffer = new StringBuffer();
byte tByte[] = new byte[1024];
while (true) {
int iLength = gzip.read(tByte, 0, 1024);
if (iLength < 0) {
break;
}
szBuffer.append(new String(tByte, 0, iLength));
}
con.disconnect();
returnString = szBuffer.toString();
private String getAuthToken() {
String name = user;
String pwd = this.password;
String authString = name + ":" + pwd;
byte[] authEncBytes = Base64.getEncoder().encode(authString.getBytes());
System.out.println(new String(authEncBytes));
return "Basic " + new String(authEncBytes);
}