Question

我有2个xml文件，结构几乎相似，在这些XML文件中如何获取以下信息？

新添加的控件（或节点）
删除了控件（或节点）
修改了控制（或节点）属性。

为了您的信息，我尝试了以下代码：

    File f1 = new File(inputXMLPath);
    File f2= new File(outputXMLPath);
    FileReader fr1 = null;
    FileReader fr2 = null;
    try {
        fr1 = new FileReader(f1);
        fr2 = new FileReader(f2);
    } catch (FileNotFoundException e) {
        e.printStackTrace();
    }

    try {
        Diff diff = new Diff(fr1, fr2);
        System.out.println("Similar? " + diff.similar());
        System.out.println("Identical? " + diff.identical());

        DetailedDiff detDiff = new DetailedDiff(diff);

        detDiff.overrideDifferenceListener(new DifferenceListener() {
            @Override
            public int differenceFound(Difference diff) {
                if (diff.getId() == DifferenceConstants.CHILD_NODELIST_SEQUENCE_ID
                    || diff.getId() == DifferenceConstants.CHILD_NODELIST_LENGTH_ID) {
                    return RETURN_IGNORE_DIFFERENCE_NODES_IDENTICAL;
                }
                return RETURN_ACCEPT_DIFFERENCE;
            }
            @Override
            public void skippedComparison(Node arg0, Node arg1) { }

        });


        List differences = detDiff.getAllDifferences();
        for (Object object : differences) {
            Difference difference = (Difference)object;
            System.out.println("***********************");
            System.out.println(difference);
            System.out.println("***********************");
        }

    } catch (SAXException e) {
        e.printStackTrace();
    } catch (IOException e) {
        e.printStackTrace();
    }

Answer 1

[编辑：添加了关于setCompareUnmatched和示例代码的说明]

我想您希望对{1}} CHILD_NODE_NOT_FOUND做出反应，如果您使用Difference，XMLUnit 1.x将会发出这些内容。

如果XMLUnit.setCompareUnmatched(false)的控制节点为空，则添加节点 - 如果测试节点为空，则删除该节点。任何其他差异都是对XMLUnit认为存在于任何一方的节点的更改。

例如

Difference

会导致类似

的内容

    FileReader fr1 = new FileReader(f1);
    FileReader fr2 = new FileReader(f2);
    XMLUnit.setCompareUnmatched(false);
    Diff diff = new Diff(fr1, fr2);
    System.out.println("Similar? " + diff.similar());
    System.out.println("Identical? " + diff.identical());

    DetailedDiff detDiff = new DetailedDiff(diff);

    detDiff.overrideDifferenceListener(new DifferenceListener() {
        @Override
        public int differenceFound(Difference diff) {
            if (diff.getId() == DifferenceConstants.CHILD_NODELIST_SEQUENCE_ID
                || diff.getId() == DifferenceConstants.CHILD_NODELIST_LENGTH_ID) {
                return RETURN_IGNORE_DIFFERENCE_NODES_IDENTICAL;
            }
            return RETURN_ACCEPT_DIFFERENCE;
        }
        @Override
        public void skippedComparison(Node arg0, Node arg1) { }

    });


    List differences = detDiff.getAllDifferences();
    for (Object object : differences) {
        Difference difference = (Difference)object;
        System.out.println("***********************");
        if (difference.getId() == DifferenceConstants.CHILD_NODE_NOT_FOUND_ID) {
            if (difference.getControlNodeDetail().getNode() == null) {
                System.out.println("Node was added");
            } else {
                System.out.println("Node was removed");
            }
        }
        System.out.println("***********************");
    }

如何比较2个XML文件以及如何使用XMLUnit获取新添加的\ Removed元素等信息

1 个答案: