Add/ Count/ Retrieve/ Remove Variables in Word using Java - 拾光赋-拾光赋

Add/ Count/ Retrieve/ Remove Variables in Word using Java

4年前发布

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This article will give examples of how to add, count, retrieve and remove variables in a Word document in Java with a free Java Word API.

【1】Import the jar dependency of the free API to your Java application (2 methods)

● Download the free API (Free Spire.Doc for Java) and unzip it, then add the Spire.Doc.jar file to your Java application as dependency.

● Directly add the jar dependency to maven project by adding the following configurations to the pom.xml.


<span><repositories></span>
   <span><repository></span>
      <span><id></span>com.e-iceblue<span></id></span>
      <span><name></span>e-iceblue<span></name></span>
      <span><url></span>http://repo.e-iceblue.com/nexus/content/groups/public/<span></url></span>
   <span></repository></span>
<span></repositories></span>
<span><dependencies></span>
   <span><dependency></span>
      <span><groupId></span>e-iceblue<span></groupId></span>
      <span><artifactId></span>spire.doc.free<span></artifactId></span>
      <span><version></span>3.9.0<span></version></span>
   <span></dependency></span>
<span></dependencies></span>
<span><repositories></span>
   <span><repository></span>
      <span><id></span>com.e-iceblue<span></id></span>
      <span><name></span>e-iceblue<span></name></span>
      <span><url></span>http://repo.e-iceblue.com/nexus/content/groups/public/<span></url></span>
   <span></repository></span>
<span></repositories></span>
<span><dependencies></span>
   <span><dependency></span>
      <span><groupId></span>e-iceblue<span></groupId></span>
      <span><artifactId></span>spire.doc.free<span></artifactId></span>
      <span><version></span>3.9.0<span></version></span>
   <span></dependency></span>
<span></dependencies></span>
<repositories>
   <repository>
      <id>com.e-iceblue</id>
      <name>e-iceblue</name>
      <url>http://repo.e-iceblue.com/nexus/content/groups/public/</url>
   </repository>
</repositories>
<dependencies>
   <dependency>
      <groupId>e-iceblue</groupId>
      <artifactId>spire.doc.free</artifactId>
      <version>3.9.0</version>
   </dependency>
</dependencies>

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【2】Add a Variable

Adding a document variable named “Temp” with a value of 12 to a Word document.


<span>import</span> <span>com.spire.doc.Document</span><span>;</span>
<span>import</span> <span>com.spire.doc.FieldType</span><span>;</span>
<span>import</span> <span>com.spire.doc.FileFormat</span><span>;</span>
<span>import</span> <span>com.spire.doc.Section</span><span>;</span>
<span>import</span> <span>com.spire.doc.documents.Paragraph</span><span>;</span>
<span>public</span> <span>class</span> <span>AddVariables</span> <span>{</span>
    <span>public</span> <span>static</span> <span>void</span> <span>main</span><span>(</span><span>String</span><span>[]</span> <span>args</span><span>){</span>
        <span>//Create a Document instance</span>
        <span>Document</span> <span>document</span> <span>=</span> <span>new</span> <span>Document</span><span>();</span>
        <span>//Add a section</span>
        <span>Section</span> <span>section</span> <span>=</span> <span>document</span><span>.</span><span>addSection</span><span>();</span>
        <span>//Add a paragraph to the section</span>
        <span>Paragraph</span> <span>paragraph</span> <span>=</span> <span>section</span><span>.</span><span>addParagraph</span><span>();</span>
        <span>//Add a DocVariable field to the paragraph</span>
        <span>paragraph</span><span>.</span><span>appendField</span><span>(</span><span>"Temp"</span><span>,</span> <span>FieldType</span><span>.</span><span>Field_Doc_Variable</span><span>);</span>
        <span>//Add a document variable to the DocVariable field</span>
        <span>document</span><span>.</span><span>getVariables</span><span>().</span><span>add</span><span>(</span><span>"Temp"</span><span>,</span> <span>"12"</span><span>);</span>
        <span>//Update fields in the document</span>
        <span>document</span><span>.</span><span>isUpdateFields</span><span>(</span><span>true</span><span>);</span>
        <span>//Save the result document</span>
        <span>document</span><span>.</span><span>saveToFile</span><span>(</span><span>"AddVariables.docx"</span><span>,</span> <span>FileFormat</span><span>.</span><span>Docx_2013</span><span>);</span>
    <span>}</span>
<span>}</span>
<span>import</span> <span>com.spire.doc.Document</span><span>;</span>
<span>import</span> <span>com.spire.doc.FieldType</span><span>;</span>
<span>import</span> <span>com.spire.doc.FileFormat</span><span>;</span>
<span>import</span> <span>com.spire.doc.Section</span><span>;</span>
<span>import</span> <span>com.spire.doc.documents.Paragraph</span><span>;</span>

<span>public</span> <span>class</span> <span>AddVariables</span> <span>{</span>
    <span>public</span> <span>static</span> <span>void</span> <span>main</span><span>(</span><span>String</span><span>[]</span> <span>args</span><span>){</span>
        <span>//Create a Document instance</span>
        <span>Document</span> <span>document</span> <span>=</span> <span>new</span> <span>Document</span><span>();</span>
        <span>//Add a section</span>
        <span>Section</span> <span>section</span> <span>=</span> <span>document</span><span>.</span><span>addSection</span><span>();</span>

        <span>//Add a paragraph to the section</span>
        <span>Paragraph</span> <span>paragraph</span> <span>=</span> <span>section</span><span>.</span><span>addParagraph</span><span>();</span>

        <span>//Add a DocVariable field to the paragraph</span>
        <span>paragraph</span><span>.</span><span>appendField</span><span>(</span><span>"Temp"</span><span>,</span> <span>FieldType</span><span>.</span><span>Field_Doc_Variable</span><span>);</span>

        <span>//Add a document variable to the DocVariable field</span>
        <span>document</span><span>.</span><span>getVariables</span><span>().</span><span>add</span><span>(</span><span>"Temp"</span><span>,</span> <span>"12"</span><span>);</span>

        <span>//Update fields in the document</span>
        <span>document</span><span>.</span><span>isUpdateFields</span><span>(</span><span>true</span><span>);</span>

        <span>//Save the result document</span>
        <span>document</span><span>.</span><span>saveToFile</span><span>(</span><span>"AddVariables.docx"</span><span>,</span> <span>FileFormat</span><span>.</span><span>Docx_2013</span><span>);</span>
    <span>}</span>
<span>}</span>
import com.spire.doc.Document;
import com.spire.doc.FieldType;
import com.spire.doc.FileFormat;
import com.spire.doc.Section;
import com.spire.doc.documents.Paragraph;

public class AddVariables {
    public static void main(String[] args){
        //Create a Document instance
        Document document = new Document();
        //Add a section
        Section section = document.addSection();

        //Add a paragraph to the section
        Paragraph paragraph = section.addParagraph();

        //Add a DocVariable field to the paragraph
        paragraph.appendField("Temp", FieldType.Field_Doc_Variable);

        //Add a document variable to the DocVariable field
        document.getVariables().add("Temp", "12");

        //Update fields in the document
        document.isUpdateFields(true);

        //Save the result document
        document.saveToFile("AddVariables.docx", FileFormat.Docx_2013);
    }
}

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【3】Count the number of Variables


<span>import</span> <span>com.spire.doc.Document</span><span>;</span>
<span>public</span> <span>class</span> <span>CountVariables</span> <span>{</span>
    <span>public</span> <span>static</span> <span>void</span> <span>main</span><span>(</span><span>String</span><span>[]</span> <span>args</span><span>){</span>
        <span>//Load the Word document</span>
        <span>Document</span> <span>document</span> <span>=</span> <span>new</span> <span>Document</span><span>();</span>
        <span>document</span><span>.</span><span>loadFromFile</span><span>(</span><span>"AddVariables.docx"</span><span>);</span>
        <span>//Get the number of variables in the document</span>
        <span>int</span> <span>number</span> <span>=</span> <span>document</span><span>.</span><span>getVariables</span><span>().</span><span>getCount</span><span>();</span>
        <span>StringBuilder</span> <span>content</span> <span>=</span> <span>new</span> <span>StringBuilder</span><span>();</span>
        <span>content</span><span>.</span><span>append</span><span>(</span><span>"The number of variables is: "</span> <span>+</span> <span>number</span><span>);</span>
        <span>System</span><span>.</span><span>out</span><span>.</span><span>println</span><span>(</span><span>content</span><span>.</span><span>toString</span><span>());</span>
    <span>}</span>
<span>}</span>
<span>import</span> <span>com.spire.doc.Document</span><span>;</span>

<span>public</span> <span>class</span> <span>CountVariables</span> <span>{</span>
    <span>public</span> <span>static</span> <span>void</span> <span>main</span><span>(</span><span>String</span><span>[]</span> <span>args</span><span>){</span>
        <span>//Load the Word document</span>
        <span>Document</span> <span>document</span> <span>=</span> <span>new</span> <span>Document</span><span>();</span>
        <span>document</span><span>.</span><span>loadFromFile</span><span>(</span><span>"AddVariables.docx"</span><span>);</span>

        <span>//Get the number of variables in the document</span>
        <span>int</span> <span>number</span> <span>=</span> <span>document</span><span>.</span><span>getVariables</span><span>().</span><span>getCount</span><span>();</span>

        <span>StringBuilder</span> <span>content</span> <span>=</span> <span>new</span> <span>StringBuilder</span><span>();</span>
        <span>content</span><span>.</span><span>append</span><span>(</span><span>"The number of variables is: "</span> <span>+</span> <span>number</span><span>);</span>

        <span>System</span><span>.</span><span>out</span><span>.</span><span>println</span><span>(</span><span>content</span><span>.</span><span>toString</span><span>());</span>
    <span>}</span>
<span>}</span>
import com.spire.doc.Document;

public class CountVariables {
    public static void main(String[] args){
        //Load the Word document
        Document document = new Document();
        document.loadFromFile("AddVariables.docx");

        //Get the number of variables in the document
        int number = document.getVariables().getCount();

        StringBuilder content = new StringBuilder();
        content.append("The number of variables is: " + number);

        System.out.println(content.toString());
    }
}

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【4】Retrieve Name and Value of a Variable


<span>import</span> <span>com.spire.doc.Document</span><span>;</span>
<span>public</span> <span>class</span> <span>RetrieveVariables</span> <span>{</span>
    <span>public</span> <span>static</span> <span>void</span> <span>main</span><span>(</span><span>String</span><span>[]</span> <span>args</span><span>){</span>
        <span>//Load the Word document</span>
        <span>Document</span> <span>document</span> <span>=</span> <span>new</span> <span>Document</span><span>();</span>
        <span>document</span><span>.</span><span>loadFromFile</span><span>(</span><span>"AddVariables.docx"</span><span>);</span>
        <span>//Retrieve the name of a variable by index</span>
        <span>String</span> <span>s1</span> <span>=</span> <span>document</span><span>.</span><span>getVariables</span><span>().</span><span>getNameByIndex</span><span>(</span><span>0</span><span>);</span>
        <span>//Retrieve the value of a variable by index</span>
        <span>String</span> <span>s2</span> <span>=</span> <span>document</span><span>.</span><span>getVariables</span><span>().</span><span>getValueByIndex</span><span>(</span><span>0</span><span>);</span>
        <span>//Retrieve the value of a variable by name</span>
        <span>String</span> <span>s3</span> <span>=</span> <span>document</span><span>.</span><span>getVariables</span><span>().</span><span>get</span><span>(</span><span>"Temp"</span><span>);</span>
        <span>System</span><span>.</span><span>out</span><span>.</span><span>println</span><span>(</span><span>"The name of the variable retrieved by index 0 is: "</span> <span>+</span> <span>s1</span><span>);</span>
        <span>System</span><span>.</span><span>out</span><span>.</span><span>println</span><span>(</span><span>"The value of the variable retrieved by index 0 is: "</span> <span>+</span> <span>s2</span><span>);</span>
        <span>System</span><span>.</span><span>out</span><span>.</span><span>println</span><span>(</span><span>"The value of the variable retrieved by name \"Temp\" is: "</span> <span>+</span> <span>s3</span><span>);</span>
    <span>}</span>
<span>}</span>
<span>import</span> <span>com.spire.doc.Document</span><span>;</span>

<span>public</span> <span>class</span> <span>RetrieveVariables</span> <span>{</span>
    <span>public</span> <span>static</span> <span>void</span> <span>main</span><span>(</span><span>String</span><span>[]</span> <span>args</span><span>){</span>
        <span>//Load the Word document</span>
        <span>Document</span> <span>document</span> <span>=</span> <span>new</span> <span>Document</span><span>();</span>
        <span>document</span><span>.</span><span>loadFromFile</span><span>(</span><span>"AddVariables.docx"</span><span>);</span>

        <span>//Retrieve the name of a variable by index</span>
        <span>String</span> <span>s1</span> <span>=</span> <span>document</span><span>.</span><span>getVariables</span><span>().</span><span>getNameByIndex</span><span>(</span><span>0</span><span>);</span>

        <span>//Retrieve the value of a variable by index</span>
        <span>String</span> <span>s2</span> <span>=</span> <span>document</span><span>.</span><span>getVariables</span><span>().</span><span>getValueByIndex</span><span>(</span><span>0</span><span>);</span>

        <span>//Retrieve the value of a variable by name</span>
        <span>String</span> <span>s3</span> <span>=</span> <span>document</span><span>.</span><span>getVariables</span><span>().</span><span>get</span><span>(</span><span>"Temp"</span><span>);</span>

        <span>System</span><span>.</span><span>out</span><span>.</span><span>println</span><span>(</span><span>"The name of the variable retrieved by index 0 is: "</span> <span>+</span> <span>s1</span><span>);</span>
        <span>System</span><span>.</span><span>out</span><span>.</span><span>println</span><span>(</span><span>"The value of the variable retrieved by index 0 is: "</span> <span>+</span> <span>s2</span><span>);</span>
        <span>System</span><span>.</span><span>out</span><span>.</span><span>println</span><span>(</span><span>"The value of the variable retrieved by name \"Temp\" is: "</span> <span>+</span> <span>s3</span><span>);</span>
    <span>}</span>
<span>}</span>
import com.spire.doc.Document;

public class RetrieveVariables {
    public static void main(String[] args){
        //Load the Word document
        Document document = new Document();
        document.loadFromFile("AddVariables.docx");

        //Retrieve the name of a variable by index
        String s1 = document.getVariables().getNameByIndex(0);

        //Retrieve the value of a variable by index
        String s2 = document.getVariables().getValueByIndex(0);

        //Retrieve the value of a variable by name
        String s3 = document.getVariables().get("Temp");

        System.out.println("The name of the variable retrieved by index 0 is: " + s1);
        System.out.println("The value of the variable retrieved by index 0 is: " + s2);
        System.out.println("The value of the variable retrieved by name \"Temp\" is: " + s3);
    }
}

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【5】Remove a specific Variable


<span>import</span> <span>com.spire.doc.Document</span><span>;</span>
<span>import</span> <span>com.spire.doc.FileFormat</span><span>;</span>
<span>public</span> <span>class</span> <span>RemoveVariables</span> <span>{</span>
    <span>public</span> <span>static</span> <span>void</span> <span>main</span><span>(</span><span>String</span><span>[]</span> <span>args</span><span>){</span>
        <span>//Load the Word document</span>
        <span>Document</span> <span>document</span> <span>=</span> <span>new</span> <span>Document</span><span>();</span>
        <span>document</span><span>.</span><span>loadFromFile</span><span>(</span><span>"AddVariables.docx"</span><span>);</span>
        <span>//Remove a variable by name</span>
        <span>document</span><span>.</span><span>getVariables</span><span>().</span><span>remove</span><span>(</span><span>"Temp"</span><span>);</span>
        <span>//Update fields in the document</span>
        <span>document</span><span>.</span><span>isUpdateFields</span> <span>(</span><span>true</span><span>);</span>
        <span>//Save the result document</span>
        <span>document</span><span>.</span><span>saveToFile</span><span>(</span><span>"RemoveVariables.docx"</span><span>,</span> <span>FileFormat</span><span>.</span><span>Docx_2013</span><span>);</span>
    <span>}</span>
<span>}</span>
<span>import</span> <span>com.spire.doc.Document</span><span>;</span>
<span>import</span> <span>com.spire.doc.FileFormat</span><span>;</span>

<span>public</span> <span>class</span> <span>RemoveVariables</span> <span>{</span>
    <span>public</span> <span>static</span> <span>void</span> <span>main</span><span>(</span><span>String</span><span>[]</span> <span>args</span><span>){</span>
        <span>//Load the Word document</span>
        <span>Document</span> <span>document</span> <span>=</span> <span>new</span> <span>Document</span><span>();</span>
        <span>document</span><span>.</span><span>loadFromFile</span><span>(</span><span>"AddVariables.docx"</span><span>);</span>

        <span>//Remove a variable by name</span>
        <span>document</span><span>.</span><span>getVariables</span><span>().</span><span>remove</span><span>(</span><span>"Temp"</span><span>);</span>

        <span>//Update fields in the document</span>
        <span>document</span><span>.</span><span>isUpdateFields</span> <span>(</span><span>true</span><span>);</span>

        <span>//Save the result document</span>
        <span>document</span><span>.</span><span>saveToFile</span><span>(</span><span>"RemoveVariables.docx"</span><span>,</span> <span>FileFormat</span><span>.</span><span>Docx_2013</span><span>);</span>
    <span>}</span>
<span>}</span>
import com.spire.doc.Document;
import com.spire.doc.FileFormat;

public class RemoveVariables {
    public static void main(String[] args){
        //Load the Word document
        Document document = new Document();
        document.loadFromFile("AddVariables.docx");

        //Remove a variable by name
        document.getVariables().remove("Temp");

        //Update fields in the document
        document.isUpdateFields (true);

        //Save the result document
        document.saveToFile("RemoveVariables.docx", FileFormat.Docx_2013);
    }
}

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原文链接：Add/ Count/ Retrieve/ Remove Variables in Word using Java

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# java # word # free # variables

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