https://github.com/namnv2496/springboot_jasperreport

Generate report by template jrxml
https://github.com/namnv2496/springboot_jasperreport

basic-programming demo-app docgen jasperreports spring-boot starter wordgenerator

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Generate report by template jrxml

• Host: GitHub
• URL: https://github.com/namnv2496/springboot_jasperreport
• Owner: NamNV2496
• Created: 2022-12-25T12:12:03.000Z (about 2 years ago)
• Default Branch: master
• Last Pushed: 2023-12-14T11:44:43.000Z (about 1 year ago)
• Last Synced: 2024-11-09T02:35:18.203Z (2 months ago)
• Topics: basic-programming, demo-app, docgen, jasperreports, spring-boot, starter, wordgenerator
• Language: Java
• Homepage:
• Size: 2.74 MB
• Stars: 1
• Watchers: 1
• Forks: 0
• Open Issues: 0
• Metadata Files:
  • Readme: Readme.md

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README

        
# jasper reports is a tool helping us to create file with template

![img.png](img/img_8.png)

![img_1.png](img/img_9.png)

# step 1: Create jrxml file

![img.png](img/img.png)

choose a template

![img_1.png](img/img_1.png)

## step 2: config fonts if you want to display vietnamese

![img_2.png](img/img_2.png)

![img_3.png](img/img_3.png)

![img_4.png](img/img_4.png)

## Step 3: load jrxml file and compile it

![img_5.png](img/img_5.png)

## Step 4: fill data param and export to jasperPrint

![img_6.png](img/img_6.png)

## Step 5: export to file

![img_7.png](img/img_7.png)

curl

	GET curl --location --request GET 'http://localhost:8080/test'

the output folder: `/out-put/`

	example: `/out-put/test.pdf`

## About `JRBeanCollectionDataSource` fill in

The SQL query is used to retrieve data from the database when using a JRResultSetDataSource. When using a JRBeanCollectionDataSource, the data is already in memory, so there is no need to retrieve it from the database.

In the example I provided earlier, the queryString element in the employee.jrxml file specifies the SQL query to retrieve data from the employees table:

    

However, this query is not used when using a JRBeanCollectionDataSource. Instead, the JRBeanCollectionDataSource is passed to the fillReport method, which provides the data for the report.

```java

    public byte[] generateReport(List employees) throws JRException {

        Map parameters = new HashMap<>();

        parameters.put("createdBy", "Bing");

        parameters.put("createdDate", new Date());

        JRBeanCollectionDataSource dataSource = new JRBeanCollectionDataSource(employees);

```

```xml

    

    

    

    

    

        

            

                

                

            

        

    

    

        

            

                

                

            

            

                

                

            

            

                

                

            

            

                

                

            

        

    

    

        

            

                

                

            

            

                

                

            

            

                

                

            

            

                

                

            

        

    

```

## with `JRResultSetDataSource` fill in

that way will access DB and get result and fill it into jrxml

```java

// Create a connection to the database

Connection conn = DriverManager.getConnection("jdbc:mysql://localhost:3306/mydatabase", "root", "password");

// Create a statement to execute the SQL query

Statement stmt = conn.createStatement();

ResultSet rs = stmt.executeQuery("SELECT * FROM employees");

// Create a JRResultSetDataSource using the ResultSet

JRResultSetDataSource dataSource = new JRResultSetDataSource(rs);

// Compile the report

        JasperReport jasperReport = JasperCompileManager.compileReport("employee.jrxml");

// Fill the report with data

        JasperPrint jasperPrint = JasperFillManager.fillReport(jasperReport, new HashMap<>(), dataSource);

```

```xml

    

        

    

    

    

    

    

    

        

            

                

                

            

        

    

    

        

            

                

                

            

            

                

                

            

            

                

                

            

            

                

                

            

        

    

    

        

            

                

                

            

            

                

                

            

            

                

                

            

            

                

                

            

        

    

```

# Gen HTML

```

curl --location 'http://localhost:8080/testHtml'

```