使用freeMark作为模板导出pdf

使用freeMark作为模板导出pdf

pom引入如下：

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1. <span style="white-space:pre">      </span><dependency>  
2.             <groupId>org.xhtmlrenderer</groupId>  
3.             <artifactId>flying-saucer-pdf-itext5</artifactId>  
4.             <version>9.1.1</version>  
5.         </dependency>  
6.         <dependency>  
7.             <artifactId>freemarker</artifactId>  
8.             <groupId>freemarker</groupId>  
9.             <version>2.3.8</version>  
10.         </dependency>  

		<dependency>
			<groupId>org.xhtmlrenderer</groupId>
			<artifactId>flying-saucer-pdf-itext5</artifactId>
			<version>9.1.1</version>
		</dependency>
		<dependency>
			<artifactId>freemarker</artifactId>
			<groupId>freemarker</groupId>
			<version>2.3.8</version>
		</dependency>

创建freemark控制类：

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1. package com.test.domains.ceshi.pdf.demo;  
2.   
3. import freemarker.template.Configuration;    
4.   
5. public class FreemarkerConfiguration {       
6.            
7.     private static Configuration config = null;       
8.            
9.     /**     
10.      * Static initialization.     
11.      *      
12.      * Initialize the configuration of Freemarker.     
13.      */      
14.     static{       
15.         config = new Configuration();       
16.         config.setClassForTemplateLoading(FreemarkerConfiguration.class, "/template/");       
17.         config.setTemplateUpdateDelay(0);    
18.     }       
19.            
20.     public static Configuration getConfiguation(){       
21.         return config;       
22.     }       
23.       
24. }      

package com.test.domains.ceshi.pdf.demo;

import freemarker.template.Configuration;  

public class FreemarkerConfiguration {     
         
    private static Configuration config = null;     
         
    /**   
     * Static initialization.   
     *    
     * Initialize the configuration of Freemarker.   
     */    
    static{     
        config = new Configuration();     
        config.setClassForTemplateLoading(FreemarkerConfiguration.class, "/template/");     
        config.setTemplateUpdateDelay(0);  
    }     
         
    public static Configuration getConfiguation(){     
        return config;     
    }     
    
}    

创建html生成器

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1. package com.test.domains.ceshi.pdf.demo;  
2.   
3.       
4. import java.io.BufferedWriter;    
5. import java.io.StringWriter;    
6. import java.util.Map;    
7. import freemarker.template.Configuration;    
8. import freemarker.template.Template;       
9.       
10. public class HtmlGenerator {       
11.     /**   
12.      * @param template   
13.      * @param variables   
14.      * @return   
15.      * @throws Exception   
16.      */    
17.     public static String generate(String template, Map params) throws Exception{       
18.         Configuration config = FreemarkerConfiguration.getConfiguation();      
19.         config.setDefaultEncoding("UTF-8");    
20.         Template tp = config.getTemplate(template);       
21.         StringWriter stringWriter = new StringWriter();     
22.         BufferedWriter writer = new BufferedWriter(stringWriter);      
23.         tp.setEncoding("UTF-8");         
24.         tp.process(params, writer);         
25.         String htmlStr = stringWriter.toString();       
26.         writer.flush();         
27.         writer.close();       
28.         return htmlStr;       
29.     }       
30.       
31. }    

package com.test.domains.ceshi.pdf.demo;

    
import java.io.BufferedWriter;  
import java.io.StringWriter;  
import java.util.Map;  
import freemarker.template.Configuration;  
import freemarker.template.Template;     
    
public class HtmlGenerator {     
    /** 
     * @param template 
     * @param variables 
     * @return 
     * @throws Exception 
     */  
    public static String generate(String template, Map params) throws Exception{     
        Configuration config = FreemarkerConfiguration.getConfiguation();    
        config.setDefaultEncoding("UTF-8");  
        Template tp = config.getTemplate(template);     
        StringWriter stringWriter = new StringWriter();   
        BufferedWriter writer = new BufferedWriter(stringWriter);    
        tp.setEncoding("UTF-8");       
        tp.process(params, writer);       
        String htmlStr = stringWriter.toString();     
        writer.flush();       
        writer.close();     
        return htmlStr;     
    }     
    
}  

编写user类用于给前台

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1. package com.test.domains.ceshi.pdf.demo;  
2.   
3. public class User {  
4.       
5.     private String id;  
6.     private String name;  
7.     private String ip;  
8.     private String address;  
9.   
10.     public String getId() {  
11.         return id;  
12.     }  
13.   
14.     public void setId(String id) {  
15.         this.id = id;  
16.     }  
17.   
18.     public String getName() {  
19.         return name;  
20.     }  
21.   
22.     public void setName(String name) {  
23.         this.name = name;  
24.     }  
25.   
26.     public String getIp() {  
27.         return ip;  
28.     }  
29.   
30.     public void setIp(String ip) {  
31.         this.ip = ip;  
32.     }  
33.   
34.     public String getAddress() {  
35.         return address;  
36.     }  
37.   
38.     public void setAddress(String address) {  
39.         this.address = address;  
40.     }  
41.   
42. }  

package com.test.domains.ceshi.pdf.demo;

public class User {
	
	private String id;
	private String name;
	private String ip;
	private String address;

	public String getId() {
		return id;
	}

	public void setId(String id) {
		this.id = id;
	}

	public String getName() {
		return name;
	}

	public void setName(String name) {
		this.name = name;
	}

	public String getIp() {
		return ip;
	}

	public void setIp(String ip) {
		this.ip = ip;
	}

	public String getAddress() {
		return address;
	}

	public void setAddress(String address) {
		this.address = address;
	}

}

编写主程序，调用上面文件

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1. package com.test.domains.ceshi.pdf.demo;  
2.   
3. import java.io.ByteArrayOutputStream;  
4. import java.io.File;  
5. import java.io.FileOutputStream;  
6. import java.io.IOException;  
7. import java.io.OutputStream;  
8. import java.net.URLEncoder;  
9. import java.util.ArrayList;  
10. import java.util.Date;  
11. import java.util.HashMap;  
12. import java.util.List;  
13. import java.util.Map;  
14.   
15. import org.xhtmlrenderer.pdf.ITextFontResolver;  
16. import org.xhtmlrenderer.pdf.ITextRenderer;  
17.   
18. import com.itextpdf.text.pdf.BaseFont;  
19.   
20. public class PdfTest {  
21.   
22.     public static void main(String[] args) throws Exception {  
23.           
24.         List<User> userList = new ArrayList<User>();  
25.         for(int i =0;i<19;i++){  
26.             User user = new User();  
27.             user.setId(i+"");  
28.             user.setName("张三"+i);  
29.             user.setAddress("北京市海点"+i);  
30.             user.setIp("192.168.1."+i);  
31.             userList.add(user);  
32.         }  
33.           
34.         exportPDF(userList);  
35.     }  
36.   
37.     public static void exportPDF(List<User> userList) throws Exception {  
38.         OutputStream os = null;  
39.         String htmlStr;  
40.         Map<String, Object> params = new HashMap<String, Object>();  
41.         Map data = new HashMap();  
42.         try {  
43.             /**  
44.              * xxx数据生成逻辑  
45.              **/  
46.             data.put("userList", userList);  
47.             data.put("projects", "aaa");  
48.   
49.             // 通过freemaker模板生成html  
50.             htmlStr = HtmlGenerator.generate("pdf.ftl", data);  
51.             ITextRenderer renderer = new ITextRenderer();  
52.             String appPath = "";  
53.             try{  
54.             renderer.setDocumentFromString(htmlStr);  
55.             }catch(Exception e){  
56.                   
57.             }  
58.   
59.             // 解决中文支持问题  
60.             ITextFontResolver fontResolver = renderer.getFontResolver();  
61.             fontResolver.addFont("/template" + File.separator + "simsun.ttc", BaseFont.IDENTITY_H,  
62.                     BaseFont.NOT_EMBEDDED);  
63.   
64.             os = new FileOutputStream(new File("D:/pdf.pdf"));  
65.             renderer.layout();  
66.             renderer.createPDF(os, true);  
67.   
68.             os.flush();  
69.             System.err.println("生成pdf成功");  
70.         } catch (Exception e) {  
71.             e.printStackTrace();  
72.         } finally {  
73.             if (null != os) {  
74.                 try {  
75.                     os.close();  
76.                 } catch (IOException e) {  
77.                     e.printStackTrace();  
78.                 }  
79.             }  
80.         }  
81.   
82.     }  
83.   
84. }  

package com.test.domains.ceshi.pdf.demo;

import java.io.ByteArrayOutputStream;
import java.io.File;
import java.io.FileOutputStream;
import java.io.IOException;
import java.io.OutputStream;
import java.net.URLEncoder;
import java.util.ArrayList;
import java.util.Date;
import java.util.HashMap;
import java.util.List;
import java.util.Map;

import org.xhtmlrenderer.pdf.ITextFontResolver;
import org.xhtmlrenderer.pdf.ITextRenderer;

import com.itextpdf.text.pdf.BaseFont;

public class PdfTest {

	public static void main(String[] args) throws Exception {
		
		List<User> userList = new ArrayList<User>();
		for(int i =0;i<19;i++){
			User user = new User();
			user.setId(i+"");
			user.setName("张三"+i);
			user.setAddress("北京市海点"+i);
			user.setIp("192.168.1."+i);
			userList.add(user);
		}
		
		exportPDF(userList);
	}

	public static void exportPDF(List<User> userList) throws Exception {
		OutputStream os = null;
		String htmlStr;
		Map<String, Object> params = new HashMap<String, Object>();
		Map data = new HashMap();
		try {
			/**
			 * xxx数据生成逻辑
			 **/
			data.put("userList", userList);
			data.put("projects", "aaa");

			// 通过freemaker模板生成html
			htmlStr = HtmlGenerator.generate("pdf.ftl", data);
			ITextRenderer renderer = new ITextRenderer();
			String appPath = "";
			try{
			renderer.setDocumentFromString(htmlStr);
			}catch(Exception e){
				
			}

			// 解决中文支持问题
			ITextFontResolver fontResolver = renderer.getFontResolver();
			fontResolver.addFont("/template" + File.separator + "simsun.ttc", BaseFont.IDENTITY_H,
					BaseFont.NOT_EMBEDDED);

			os = new FileOutputStream(new File("D:/pdf.pdf"));
			renderer.layout();
			renderer.createPDF(os, true);

			os.flush();
			System.err.println("生成pdf成功");
		} catch (Exception e) {
			e.printStackTrace();
		} finally {
			if (null != os) {
				try {
					os.close();
				} catch (IOException e) {
					e.printStackTrace();
				}
			}
		}

	}

}

至此可完成模板导出pdf文件