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PHP calls JasperReport report through PHP/JAVA Bridge_PHP tutorial
- WBOYOriginal
- 2016-07-13 17:46:46983browse
This article talks about using PHP-Java-Bridge technology to realize the output of JasperReport web reports.
JasperReport (http://jasperforge.org/) is a powerful and flexible report generation tool that can display rich page content and convert it into PDF, HTML, or XML formats. This library is written entirely in Java and can be used to generate dynamic content in a variety of Java applications, including J2EE, Web applications.
The attached report design tool is iReport (free). This tool can realize visual report design and can output reports in common formats of PDF, HTML, and WORD. The saved files have a .jrxml suffix and require a Java environment to run normally. PHP cannot Call directly.
Since PHP cannot be called directly, it has to resort to PHP-Java-Bridge technology. For details, please refer to http://php-java-bridge.sourceforge.net/pjb/index.php
1. Install tomcat. If you choose the exe installation version, the jre environment will be automatically installed during installation. If it is the compressed version of tomcat, you need to install the java environment separately, and the configuration is more complicated. It is recommended to use the installation version of tomcat.
Configure tomcat port 6000, the default port 8080 is occupied, and the site root directory is webapps under tomcat
2. Download the php-java-bridge package at the address http://php-java-bridge.sourceforge.net/pjb/download.php. After downloading, unzip it. There is a JavaBridge.war file in it. Copy this file to tomcat. For webapps, after running http://localhost:6000/JavaBridge/, a JavaBridge directory will be generated in the webapps.
3. Install ireport3.0 (there is an updated version). Copy all the contents in C:Program FilesJasperSoftiReport-3.0.0lib to tomcat's webapps/JavaBridge/WEB-INF/lib/. These packages need to be found by JavaBridge. Just fine.
4. Copy the java directory from the generated JavaBridge directory to the PHP site (or find the php.ini file, change the allow_url_include parameter inside to on, and directly reference java/java.inc under JavaBridge). Download the report file http://www.rjohnson.id.au/download/jasper/test.jrxml and place it under the PHP site.
Then create a PHP file under the PHP site
ireport.php (the code involves ports and needs to be changed according to personal circumstances)
1
2
3 /**
4 * see if the java extension was loaded.
5 */
6 function checkJavaExtension()
7 {
8 if(!extension_loaded('java'))
9 {
10 $sapi_type = php_sapi_name();
11
12 //$port = (isset($_SERVER['SERVER_PORT']) && (($_SERVER['SERVER_PORT'])>1024)) ? $_SERVER['SERVER_PORT'] : '6000';
13 //echo $port;
14 $port = 6000;
15 if ($sapi_type == "cgi" || $sapi_type == "cgi-fcgi" || $sapi_type == "cli")
16 {
17 if(!(PHP_SHLIB_SUFFIX=="so" && @dl('java.so'))&&!(PHP_SHLIB_SUFFIX=="dll" && @dl('php_java.dll'))&&!(@include_once("java /Java.inc"))&&!(require_once("http://127.0.0.1:$port/JavaBridge/java/Java.inc")))
18 {
19 return "java extension not installed.";
20 }
21 }
22 else
23 {
24 if(!(@include_once("java/Java.inc")))
25 {
26
27 require_once("http://127.0.0.1:$port/JavaBridge/java/Java.inc");28 }
29 }
30 }
31 if(!function_exists("java_get_server_name"))
32 {
33 return "The loaded java extension is not the PHP/Java Bridge";
34 }
35
36 return true;
37 }
38
39 /**
40 * convert a php value to a java one...
41 * @param string $value
42 * @param string $className
43 * @returns boolean success
44 */
45 function convertValue($value, $className)
46 {
47 // if we are a string, just use the normal conversion
48 // methods from the java extension...
49 try
50 {
51 if ($className == 'java.lang.String')
52 {
53 $temp = new Java('java.lang.String', $value);
54 return $temp;
55 }
56 else if ($className == 'java.lang.Boolean' ||
57 $className == 'java.lang.Integer' ||
58 $className == 'java.lang.Long' ||
59 $className == 'java.lang.Short' ||
60 $className == 'java.lang.Double' ||
61 $className == 'java.math.BigDecimal')
62 {
63 $temp = new Java($className, $value);
64 return $temp;
65 }
66 else if ($className == 'java.sql.Timestamp' ||
67 $className == 'java.sql.Time')
68 {
69 $temp = new Java($className);
70 $javaObject = $temp->valueOf($value);
71 return $javaObject;
72 }
73 }
74 catch (Exception $err)
75 {
76 echo ( 'unable to convert value, ' . $value .
77 ' could not be converted to ' . $className);
78 return false;
79 }
80
81 echo ( 'unable to convert value, class name '.$className.
82 ' not recognised');
83 return false;
84 }
85
86
87 checkJavaExtension();
88
89 $compileManager = new JavaClass("net.sf.jasperreports.engine.JasperCompileManager");
90 $report = $compileManager->compileReport(realpath("test.jrxml"));
91
92 $fillManager = new JavaClass("net.sf.jasperreports.engine.JasperFillManager");
93
94 $params = new Java("java.util.HashMap");
95 $params->put("text", "This is a test string");
96 $params->put("number", 3.00);
97 $params->put("date", convertValue("2007-12-31 0:0:0", "java.sql.Timestamp"));
98
99 $emptyDataSource = new Java("net.sf.jasperreports.engine.JREmptyDataSource");
100 $jasperPrint = $fillManager->fillReport($report, $params, $emptyDataSource);
101
102 $outputPath = realpath(".")."/"."output.pdf";
103
104 $exportManager = new JavaClass("net.sf.jasperreports.engine.JasperExportManager");
105 $exportManager->exportReportToPdfFile($jasperPrint, $outputPath);
106
107 header("Content-type: application/pdf");
108 readfile($outputPath);
109
110 unlink($outputPath);
111
112 ?>
5、访问PHP站点，http://www.BkJia.com :8080/ireport.php，就可以输出PDF文档。
摘自 有所为，有所不为