Jaspersoft 报表:PDF中文不显示问题

女爷i 2023-10-18 19:02 66阅读 0赞

问题概述：PDF中文不显示问题主要是Jasperreports提供的font包不提供中文格式支持，所以我们需要自定义一个font包，用于支持。

第一步：在Jaspersoft Studio中添加中文字体

1、下载微软雅黑字体文件：\*.ttf，字体文件下载地址：

2、在Jaspersoft Studio中设置Font,步骤： Window -> Preferences -> Jaspersoft Studio -> Fonts

![watermark_type_ZmFuZ3poZW5naGVpdGk_shadow_10_text_aHR0cHM6Ly9ibG9nLmNzZG4ubmV0L3pob3V6aGl3ZW5nYW5n_size_16_color_FFFFFF_t_70][]

3、添加字体文件：

![watermark_type_ZmFuZ3poZW5naGVpdGk_shadow_10_text_aHR0cHM6Ly9ibG9nLmNzZG4ubmV0L3pob3V6aGl3ZW5nYW5n_size_16_color_FFFFFF_t_70 1][]

添加完成后，可以在选择字体栏发现添加的字体

![watermark_type_ZmFuZ3poZW5naGVpdGk_shadow_10_text_aHR0cHM6Ly9ibG9nLmNzZG4ubmV0L3pob3V6aGl3ZW5nYW5n_size_16_color_FFFFFF_t_70 2][]

然后把所有的parameter字体都换成“微软雅黑”。保存从新生成report1.jasper文件。

第二步：在Jaspersoft Studio 打包字体文件Font.jar包

1、Jaspersoft Studio中打包Font.jar,步骤如下： Window -> Preferences -> Jaspersoft Studio -> Fonts->Export

![watermark_type_ZmFuZ3poZW5naGVpdGk_shadow_10_text_aHR0cHM6Ly9ibG9nLmNzZG4ubmV0L3pob3V6aGl3ZW5nYW5n_size_16_color_FFFFFF_t_70 3][]

![watermark_type_ZmFuZ3poZW5naGVpdGk_shadow_10_text_aHR0cHM6Ly9ibG9nLmNzZG4ubmV0L3pob3V6aGl3ZW5nYW5n_size_16_color_FFFFFF_t_70 4][]

2、将打包的font.jar 文件安装至本地Maven 仓库中，执行如下指令：

mvn install:install-file -Dfile=C:/font/jar/font.jar -DgroupId=com.zzg.report -DartifactId=font -Dversion=1.0.0 -Dpackaging=jar

3、报表项目添加对font.jar 依赖：

<dependency>
    			<groupId>net.sf.jasperreports</groupId>
    			<artifactId>jasperreports</artifactId>
    			<version>6.6.0</version>
    		</dependency>
    
    		<dependency>
    			<groupId>com.zzg.report</groupId>
    			<artifactId>font</artifactId>
    			<version>1.0.0</version>
    		</dependency>

4、重新启动项目，重新访问指定报表：

![watermark_type_ZmFuZ3poZW5naGVpdGk_shadow_10_text_aHR0cHM6Ly9ibG9nLmNzZG4ubmV0L3pob3V6aGl3ZW5nYW5n_size_16_color_FFFFFF_t_70 5][]

5、重点代码：

package com.zzg.report;
    
    import java.io.File;
    import java.io.IOException;
    import java.io.InputStream;
    import java.util.HashMap;
    import java.util.Map;
    import javax.servlet.ServletOutputStream;
    import javax.servlet.http.HttpServletResponse;
    import org.springframework.core.io.ClassPathResource;
    import org.springframework.stereotype.Controller;
    import org.springframework.web.bind.annotation.PathVariable;
    import org.springframework.web.bind.annotation.RequestMapping;
    import net.sf.jasperreports.engine.JREmptyDataSource;
    import net.sf.jasperreports.engine.JasperRunManager;
    
    @Controller
    @RequestMapping("/api/report")
    public class ReportController {
    	@RequestMapping("/{reportName}")
    	public void getReportByParam(@PathVariable("reportName") final String reportName, HttpServletResponse response) {
    		// try{
    		// 参数填充
    		Map<String, Object> parameters = new HashMap<String, Object>();
    		parameters.put("title", "参数");
    		parameters.put("date", "2019-05-23");
    		parameters.put("name", "强人");
    		parameters.put("age", "28");
    		parameters.put("dept", " 研发中心");
    		parameters.put("gender", "码农");
    		ServletOutputStream sosRef = null;
    		try {
    			// 获取文件流
    			ClassPathResource resource = new ClassPathResource("jaspers" + File.separator + reportName + ".jasper");
    			InputStream jasperStream = resource.getInputStream();
    
    			sosRef = response.getOutputStream();
    
    			JasperRunManager.runReportToPdfStream(jasperStream, sosRef, parameters, new JREmptyDataSource());
    			response.setContentType("application/pdf");
    		} catch (Exception e) {
    			e.printStackTrace();
    		} finally {
    			try {
    				sosRef.flush();
    				sosRef.close();
    			} catch (IOException e) {
    				// TODO Auto-generated catch block
    				e.printStackTrace();
    			}
    		}
    
    	}
    
    }

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