java - 使用 apache camel 从 xml 转换时，'@' 符号出现在输出 json 中

Question

我正在尝试使用 apache camel 将 xml 转换为 json，它工作正常。但是输出的每个属性都附加了“@”。

示例:如果 xml 是 AAA，我将在 json 中获取 @name:ajay。

下面是我使用的代码

   XmlJsonDataFormat xmlJsonFormat = new XmlJsonDataFormat();
    CamelContext context = new DefaultCamelContext();
   try {
        xmlJsonFormat.setEncoding("UTF-8");

        xmlJsonFormat.setForceTopLevelObject(true);
        xmlJsonFormat.setTrimSpaces(true);
        xmlJsonFormat.setSkipNamespaces(true);
        xmlJsonFormat.setRemoveNamespacePrefixes(true);

        context.addRoutes(new RouteBuilder() {
            @Override
            public void configure() throws Exception {
                String ch = "" ; 
     from("file:src/main/resources/input").marshal(xmlJsonFormat).to("file:src/main/resources/output/");

         System.out.println(ch);
            }
        });

        context.start();

        Thread.sleep(10000);
    } finally {
        context.stop();
    }

Answer 1

作为替代库，您可以使用 JSON.org:

<dependency>
    <groupId>org.json</groupId>
    <artifactId>json</artifactId>
    <version>${json.version}</version>
</dependency>

然后像这样实现一个Processor:

public void configure() throws Exception {
    from("direct:input")
        .convertBodyTo(String.class)
        .process(new Processor() {
            public void process(Exchange exchange) throws Exception {
                final String xmlBody = exchange.getIn().getBody(String.class);
                final String jsonBody = XML.toJSONObject(xmlBody).toString();
                exchange.getIn().setBody(jsonBody);
            }
        })
        .log("************* My body in json format is ${body} *********")
        .to("mock:output");                
}

JUnit 测试:

@Test
public void test() throws InterruptedException, CamelExecutionException, IOException {
    getMockEndpoint("mock:output").expectedBodyReceived().body().contains("{\"books\"");
    getMockEndpoint("mock:output").expectedMessageCount(1);


    template.sendBody("direct:input", 
                    IOUtils.toString(this.getClass().getResourceAsStream("/xml/books.xml"), 
                                    Charset.defaultCharset()));

    getMockEndpoint("mock:output").assertIsSatisfied();
}

鉴于此输入:

<books>
    <book>
        <title>The Fellowship of the Ring</title>
        <author>J.R.R Tolkien</author>
        <year>1954</year>
    </book>
    <book>
        <title>The Two Towers</title>
        <author>J.R.R Tolkien</author>
        <year>1955</year>
    </book>
    <book>
        <title>The Return of the King</title>
        <author>J.R.R Tolkien</author>
        <year>1956</year>
    </book>
</books>

我们有这样的输出:

{
"books":{
    "book":[
        {
            "year":1954,
            "author":"J.R.R Tolkien",
            "title":"The Fellowship of the Ring"
        },
        {
            "year":1955,
            "author":"J.R.R Tolkien",
            "title":"The Two Towers"
        },
        {
            "year":1956,
            "author":"J.R.R Tolkien",
            "title":"The Return of the King"
        }
    ]
}
}