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获取Word文档所有部分的标题文本

office-js

hasnayn · 技术社区 · 9 年前

我想使用 office.js . 我无法从节中获取标题文本。在section object中有一个方法返回body object。如何从body对象获取标题文本?

sectionObject.getHeader(type);

这是我的代码:

Word.run(function (context) {
        //Create table here            
        var sections = context.document.sections;
        context.load(sections);
        return context.sync()
            .then(function () {
                if (sections != null) {
                    var items = sections.items;
                    var itemsCount = items.length;                        
                    for (var i = 0; i < itemsCount; i++) {
                        var currentSection = items[i];
                        var headerBody =currentSection.getHeader('primary');
                        //Get headerText here
                        //??


                        //Write the text into table
                    }                        
                }

            }).catch(function (myError) {                    
                showNotification("Error", myError.message);
            });

    }).catch(errorHandler);

我尝试了一种方法:从body对象获取“段落集合”。然后得到第一段文字。这实际上是标题文本。在这种情况下,我必须加载并同步段落集合以获取项目。现在,如果我加载集合并将其同步到一个循环中,循环只进行一次,这样我就只能获得一个部分的标题。但我需要所有章节的标题。代码如下:

Word.run(function (context) {
        //Create table here  
        var sections = context.document.sections;
        context.load(sections);
        return context.sync()
            .then(function () {
                if (sections != null) {
                    var items = sections.items;
                    var itemsCount = items.length;                        
                    for (var i = 0; i < itemsCount; i++) {
                        var currentSection = items[i];
                        var headerBody = currentSection.getHeader('primary');
                        var headerBodyParagraps = headerBody.paragraphs;

                        context.load(headerBodyParagraps);
                        return context.sync()
                        .then(function () {
                            if (headerBodyParagraps != null) {
                                var headerBodyParaItems = headerBodyParagraps.items;
                                var headerText = headerBodyParagraps.items[0].text;

                                //Write the headerText into table
                                //
                            }

                        });
                    }                        
                }

            }).catch(function (myError) {
                //otherwise we handle the exception here!
                showNotification("Error", myError.message);
            });

    }).catch(errorHandler);

我尝试了另一种方法。不要为每个节加载一次“headerBodyParagraps”,而是将“headerBodyParagraps”添加到数组中,并一次加载所有。但加载集合数组会引发错误:无法在不同的请求上下文中使用该对象。以下是代码:

Word.run(function (context) {
        //Add table here 
        var sections = context.document.sections;
        context.load(sections);
        return context.sync()
            .then(function () {
                if (sections != null) {
                    var items = sections.items;
                    var itemsCount = items.length;
                    var paraList = [];
                    for (var i = 0; i < itemsCount; i++) {
                        var currentSection = items[i];
                        var headerBody = currentSection.getHeader('primary');                            
                        var headerBodyParagraps = headerBody.paragraphs;
                        paraList[i] = headerBodyParagraps;                           
                    }
                    context.load(paraList); // Throws exception("Cannot use the object across different request contexts ") here.

                    context.sync()
                    .then(function () {
                        if (paraList != null) {
                            for (var j = 0; j < itemsCount; j++) {

                                var headerBodyParaItems = paraList[j].items;
                                var headerText = paraList[j].items[0].text;

                                //Add headertext to table here 
                            }
                        }

                    });

                }

            }).catch(function (myError) {
                //otherwise we handle the exception here!
                showNotification("Error", myError.message);
            });

    }).catch(errorHandler);

感谢阅读。欢迎提供任何类型的提示/帮助!

1 回复 | 直到 9 年前

Marc LaFleur 9 年前

在标题文本可用之前,您需要 load sync 检索它。例如:

for (var i = 0; i < itemsCount; i++) {
    var currentSection = items[i];
    var headerBody = currentSection.getHeader('primary');
    context.load(headerBody);
    context.sync().then(function () {
        console.log(headerBody.text);
    });
}

从性能角度来看,这将产生一系列不必要的电话。更好的选择是利用队列,这样您可以请求头标头,但可以在一个队列中获取所有头标头 同步

Word.run(function (context) {
    var sections = context.document.sections;
    context.load(sections);
    return context.sync().then(function () {
        if (sections != null) {
            // Collection of headers we'll populate later
            var headers = [];

            // Iterate through the sections 
            for (var i = 0; i < sections.items.length; i++) {

                // Grab the header from the current section
                var header = sections.items[i].getHeader('primary');

                // Add loading this header to the  queue 
                context.load(header);

                // Push this header into the headers collection
                headers.push(header);
            }

            // Sync/Exectute the queued actions
            context.sync().then(function () {
                // Iterate through the headers collection
                for (var i = 0; i < headers.length; i++) {
                    // Output each header's text to the console
                    console.log(headers[i].text);
                }
            });

        }
    });
})