如何在 java、tomcat、eclipse 中创建 JSON 数据的 Restful Web 服务
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How to create a Restful web-service of JSON data in java,tomcat,eclipse
提问by Whats Going On
I have a JSON data like this. I want to create a Restful web-service that generates a JSON output like the link above.
我有一个像JSON数据本。我想创建一个生成 JSON 输出的 Restful Web 服务，如上面的链接。
I looked at How to Create a Restful service for a Huge JSON data using Java eclipse Tomcat7.0
我查看了如何使用 Java eclipse Tomcat7.0 为巨大的 JSON 数据创建 Restful 服务
I want to add this in the above condition:
我想在上述条件中添加这个：
{
status: "ok",
count: 10,
pages: 6,
category:{
previous answer is this,..
以前的答案是这样的，..
{
category:{/[
I want this
我要这个
{
status: "ok",
count: 10,
pages: 6,
category:{
采纳答案by Nidhish Krishnan
Take a look at this answer
看看这个答案
A typical JSON is as shown below
一个典型的JSON如下图
{
"name":"Ersin",
"surname":"?etinkaya",
"age":"25",
"address":[{"city": "Bursa","country": "Türkiye","zipCode": "33444"}],
"phones": ["234234242","345345354"]
}
Java code for creating the above JSON is given below
下面给出了用于创建上述 JSON 的 Java 代码
public JSONObject getValues()
{
JSONObject jsonobj=new JSONObject();
jsonobj.put("name","Ersin");
jsonobj.put("surname","?etinkaya");
jsonobj.put("age","25");
JSONArray obj = new JSONArray();
HashMap rows=new HashMap();
rows.put("city","Bursa");
rows.put("country","Türkiye");
rows.put("zipCode","33444");
obj.put(rows);
jsonobj.put("address", obj);
JSONArray phobj = new JSONArray();
phobj.put("234234242");
phobj.put("345345354");
jsonobj.put("phones", phobj);
System.out.println(jsonobj.toString());
return jsonobj.toString();
}
回答by Henry Florence
Those first few lines can be added as additional keys to the parent jsonobj:
前几行可以作为附加键添加到 parent jsonobj：
jsonobj.put("status", "ok");
jsonobj.put("count", 10);
jsonobj.put("pages", totalPages);
jsonobj.put("category", categoryMap);
How you generate these variables will depend on where you are getting your data from. Is it a database for example?
您如何生成这些变量将取决于您从何处获取数据。例如，它是一个数据库吗？
The count and pages would seem to indicate that there are between 51 - 60 items available, with 10 items per page and 6 pages.
计数和页数似乎表明有 51 - 60 个项目可用，每页 10 个项目和 6 页。
The Status variable could be used to indicate an error, so another possible value could be:
Status 变量可用于指示错误，因此另一个可能的值可能是：
jsonobj.put("status", "error");
jsonobj.put("errorcode", "101");
jsonobj.put("error message", "big database error");
This allows the client to check the statusstring in the response and catch errors gracefully.
这允许客户端检查status响应中的字符串并优雅地捕获错误。
