一、准备
下载iReport3.7.1、JasperReport3.7.1、Struts2.1.8及其他需要的包，需导入包如下图：
如需生成Excel的话，还需导入poi-3.5.jar包。
二、整合Struts2+JasperReport3
1. 新建以下三个pojo类：
Address
package com.xy.report.pojo;
public class Address {
private String city;
private String zipcode;
public String getCity() {
return city;
}
public void setCity(String city) {
this.city = city;
}
public String getZipcode() {
return zipcode;
}
public void setZipcode(String zipcode) {
this.zipcode = zipcode;
}
}
Company
package com.xy.report.pojo;
import java.util.HashSet;
import java.util.Set;
public class Company implements Comparable<Company>{
private String name;
private Address address;
private Set<Staff> staffs = new HashSet<Staff>();
@Override
public int compareTo(Company o) {
return o.getName().compareTo(this.getName());
}
public String getName() {
return name;
}
public void setName(String name) {
this.name = name;
}
public Address getAddress() {
return address;
}
public void setAddress(Address address) {
this.address = address;
}
public Set<Staff> getStaffs() {
return staffs;
}
public void setStaffs(Set<Staff> staffs) {
this.staffs = staffs;
}
}
Company中
compareTo方法用于在报表中排序。
Staff
package com.xy.report.pojo;
public class Staff {
private String name;
private Company company;
public String getName() {
return name;
}
public void setName(String name) {
this.name = name;
}
public Company getCompany() {
return company;
}
public void setCompany(Company company) {
this.company = company;
}
}
以上Address是Company的组件，Company与Staff是一对多关系。
2. 新建Action
package com.xy.report.action;
import java.util.ArrayList;
import java.util.HashMap;
import java.util.List;
import java.util.Map;
import com.opensymphony.xwork2.ActionSupport;
import com.xy.report.pojo.Address;
import com.xy.report.pojo.Company;
import com.xy.report.pojo.Staff;
public class DemoAction extends ActionSupport{
private static final long serialVersionUID = -5460323122712890562L;
private List<Staff> list;
private Map<String,Object> map;
@Override
public String execute(){
list = getData();
map = getParameter();
return SUCCESS;
}
private List<Staff> getData(){
Address address = new Address();
address.setCity("上海");
address.setZipcode("201400");
Company company1 = new Company();
company1.setName("飞利浦");
company1.setAddress(address);
Company company2 = new Company();
company2.setName("谷歌");
company2.setAddress(address);
Staff staff1 = new Staff();
staff1.setName("张三");
staff1.setCompany(company1);
Staff staff2 = new Staff();
staff2.setName("李四");
staff2.setCompany(company2);
Staff staff3 = new Staff();
staff3.setName("王五");
staff3.setCompany(company1);
List<Staff> list = new ArrayList<Staff>();
list.add(staff1);
list.add(staff2);
list.add(staff3);
return list;
}
private Map<String,Object> getParameter(){
Map<String,Object> map = new HashMap<String,Object>();
map.put("date", "2010-03-12");
return map;
}
// getter, setter
public List<Staff> getList() {
return list;
}
public void setList(List<Staff> list) {
this.list = list;
}
public Map<String, Object> getMap() {
return map;
}
public void setMap(Map<String, Object> map) {
this.map = map;
}
}
以上list为提供给报表的数据源，map为提供给报表的参数，如日期范围等。struts.xml配置如下：
<?xml version="1.0" encoding="UTF-8"?>
<!DOCTYPE struts PUBLIC "-//Apache Software Foundation//DTD Struts Configuration 2.0//EN" "http://struts.apache.org/dtds/struts-2.0.dtd" >
<struts>
<include file="struts-default.xml"></include>
<!-- 报表演示 -->
<package name="default" namespace="/reports" extends="struts-default,jasperreports-default">
<action name="demoReport" class="com.xy.report.action.DemoAction">
<resu