Question

我想知道是否有办法拆分xml字符串。

我在这里有字符串：

    <?xml version="1.0" encoding="UTF-8"?> <Messages> <Status>Iam good</Status> </Messages>
    <?xml version="1.0" encoding="UTF-8"?> <Messages> <Status>Iam good</Status> </Messages>
    <?xml version="1.0" encoding="UTF-8"?> <Messages> <Status>Iam NOT good</Status> </Messages>
    <?xml version="1.0" encoding="UTF-8"?> <Messages> <Status>Iam good</Status> </Messages>
    <?xml version="1.0" encoding="UTF-8"?> <Messages> <Status>Iam good</Status> </Messages>
    <?xml version="1.0" encoding="UTF-8"?> <Messages> <Status>Iam NOT good</Status> </Messages>
    <?xml version="1.0" encoding="UTF-8"?> <Messages> <Status>Iam good</Status> </Messages>
    <?xml version="1.0" encoding="UTF-8"?> <Messages> <Status>Iam good</Status> </Messages>
    <?xml version="1.0" encoding="UTF-8"?> <Messages> <Status>Iam NOT good</Status> </Messages>
    <?xml version="1.0" encoding="UTF-8"?> <Messages> <Status>Iam good</Status> </Messages>
    <?xml version="1.0" encoding="UTF-8"?> <Messages> <Status>Iam NOT good</Status> </Messages>
    <?xml version="1.0" encoding="UTF-8"?> <Replies> <Start>Lets go</Start> </Replies>

所以我可以将每个字符串作为数组？就这个

_temp[2] = <?xml version="1.0" encoding="UTF-8"?> <Messages> <Status>Iam NOT good</Status> </Messages>

Answer 1

您可以使用正则表达式进行拆分

(?<!\A)(?=<\?xml)

在每个<?xml之前拆分。

为了防止输入开头的空格在分割中成为它们自己的一部分，你需要trim输入。

Java示例：

String input = "   <?xml version=\"1.0\" encoding=\"UTF-8\"?> <Messages> <Status>Iam good</Status> </Messages>\n"
        + "    <?xml version=\"1.0\" encoding=\"UTF-8\"?> <Messages> <Status>Iam good</Status> </Messages>\n"
        + "    <?xml version=\"1.0\" encoding=\"UTF-8\"?> <Messages> <Status>Iam NOT good</Status> </Messages>\n"
        + "    <?xml version=\"1.0\" encoding=\"UTF-8\"?> <Messages> <Status>Iam good</Status> </Messages>\n"
        + "    <?xml version=\"1.0\" encoding=\"UTF-8\"?> <Messages> <Status>Iam good</Status> </Messages>\n"
        + "    <?xml version=\"1.0\" encoding=\"UTF-8\"?> <Messages> <Status>Iam NOT good</Status> </Messages>\n"
        + "    <?xml version=\"1.0\" encoding=\"UTF-8\"?> <Messages> <Status>Iam good</Status> </Messages>\n"
        + "    <?xml version=\"1.0\" encoding=\"UTF-8\"?> <Messages> <Status>Iam good</Status> </Messages>\n"
        + "    <?xml version=\"1.0\" encoding=\"UTF-8\"?> <Messages> <Status>Iam NOT good</Status> </Messages>\n"
        + "    <?xml version=\"1.0\" encoding=\"UTF-8\"?> <Messages> <Status>Iam good</Status> </Messages>\n"
        + "    <?xml version=\"1.0\" encoding=\"UTF-8\"?> <Messages> <Status>Iam NOT good</Status> </Messages>\n"
        + "    <?xml version=\"1.0\" encoding=\"UTF-8\"?> <Replies> <Start>Lets go</Start> </Replies>";

String[] parts = input.trim().split("(?<!\\A)(?=<\\?xml)");

for (String s : parts) {
    System.out.println(s);
    System.out.println("-------------------------");
}

注意：这不适用于所有可能的xml，因为<?xml可以包含在CDATA元素中，例如<![CDATA[<?xml]]>。为了防止这种情况，您需要使用xml解析器。

Answer 2

阅读本文的另一个选择如下

try {
        List<String> lines = Files.readAllLines(Paths.get("<XML FILE PATH>"),
                Charset.defaultCharset());
        System.out.println(lines.size());
        for (String line : lines) {
            System.out.println("===============================");
            System.out.println(line);
        }

    } catch (IOException e) {

        e.printStackTrace();
    }

在运行时，我得到了12行的列表，然后可以使用索引进行处理。

从String中拆分xml消息

2 个答案: