Spring Roo 自动化集成开发工具

Roo是一种 Spring 开发的辅助工具，使用命令行操作来生成自动化项目，操作非常类似于rails

我这里使用spring tool suit来开发一个demo项目

首先新建个spring template project，然后选择template类型为Roo Wep App (based on Roo 1.0.0.RC1)
这样，便会通过roo的命令自动生成一个标准的maven web项目，里面含有最基本的Spring 配置

建好项目后，我们可以在project上运行roo shell
通过hint命令，我们可以很快的了解各种操作提示

首先，设置数据库

Roo shell代码

1. install jpa -provider HIBERNATE -database MYSQL  

install jpa -provider HIBERNATE -database MYSQL

roo会帮你在配置文件applicationContext.xml中配置好了相应的数据源配置，并且在 pom.xml中已经添加jpa和数据库驱动等相关的依赖。

然后新建一个domain

Roo shell代码

1. new persistent class jpa -name ~.domain.Employee -testAutomatically  

new persistent class jpa -name ~.domain.Employee -testAutomatically

这时roo会帮我们生成Employee类，这时Employee类还没有任何字段，我们可以通过roo shell往里面加入一些字段

Roo shell代码

1. add field string -fieldName name -notNull -sizeMax 200  
2. add field date jpa -fieldName birth -type java.util.Date   
3. ......  

add field string -fieldName name -notNull -sizeMax 200
add field date jpa -fieldName birth -type java.util.Date
......

最终生成的Employee如下：

Java代码

1. @Entity  
2. @RooEntity  
3. @RooJavaBean  
4. @RooToString  
5. public class Employee {   
6.   
7.     @NotNull  
8.     @Size(max = 200)   
9.     private String name;   
10.   
11.     @Temporal(TemporalType.TIMESTAMP)   
12.     private Date birth;   
13. }  

@Entity
@RooEntity
@RooJavaBean
@RooToString
public class Employee {

    @NotNull
    @Size(max = 200)
    private String name;

    @Temporal(TemporalType.TIMESTAMP)
    private Date birth;
}

你会发现，怎么没有get set呢？我们反编译看下编译后的class代码

Java代码

1. // Decompiled by DJ v3.5.5.77 Copyright 2003 Atanas Neshkov  Date: 2009-8-8 21:37:43   
2. // Home Page : http://members.fortunecity.com/neshkov/dj.html  - Check often for new version!   
3. // Decompiler options: packimports(3)    
4. // Source File Name:   Employee.java   
5.   
6. package com.javaeye.domain;   
7.   
8. import java.util.Date;   
9. import java.util.List;   
10. import javax.persistence.EntityManager;   
11. import org.aspectj.runtime.reflect.Factory;   
12. import org.springframework.beans.factory.annotation.Configurable;   
13. import org.springframework.beans.factory.aspectj.*;   
14.   
15. // Referenced classes of package com.javaeye.domain:   
16. //            Employee_Roo_ToString, Employee_Roo_Entity, Employee_Roo_JavaBean   
17.   
18. public class Employee   
19.     implements ConfigurableObject   
20. {   
21.   
22.     public Employee()   
23.     {   
24.         org.aspectj.lang.JoinPoint joinpoint1 = Factory.makeJP(ajc$tjp_1, this, this);   
25.         org.aspectj.lang.JoinPoint joinpoint = Factory.makeJP(ajc$tjp_0, this, this);   
26.         if(this != null && getClass().isAnnotationPresent(org/springframework/beans/factory/annotation/Configurable) && AnnotationBeanConfigurerAspect.ajc$if_1((Configurable)getClass().getAnnotation(org/springframework/beans/factory/annotation/Configurable)))   
27.             AnnotationBeanConfigurerAspect.aspectOf().ajc$before$org_springframework_beans_factory_aspectj_AbstractDependencyInjectionAspect$1$e854fa65(this);   
28.         if(this != null && getClass().isAnnotationPresent(org/springframework/beans/factory/annotation/Configurable) && (this == null || !getClass().isAnnotationPresent(org/springframework/beans/factory/annotation/Configurable) || !AnnotationBeanConfigurerAspect.ajc$if_1((Configurable)getClass().getAnnotation(org/springframework/beans/factory/annotation/Configurable))) && AbstractDependencyInjectionAspect.ajc$if_0(joinpoint))   
29.             AnnotationBeanConfigurerAspect.aspectOf().ajc$afterReturning$org_springframework_beans_factory_aspectj_AbstractDependencyInjectionAspect$2$1ea6722c(this);   
30.         Employee_Roo_Entity.ajc$interFieldInit$com_javaeye_domain_Employee_Roo_Entity$com_javaeye_domain_Employee$entityManager(this);   
31.         Employee_Roo_Entity.ajc$interFieldInit$com_javaeye_domain_Employee_Roo_Entity$com_javaeye_domain_Employee$id(this);   
32.         Employee_Roo_Entity.ajc$interFieldInit$com_javaeye_domain_Employee_Roo_Entity$com_javaeye_domain_Employee$version(this);   
33.         if(!AnnotationBeanConfigurerAspect.ajc$if_1((Configurable)getClass().getAnnotation(org/springframework/beans/factory/annotation/Configurable)) && AbstractDependencyInjectionAspect.ajc$if_0(joinpoint1))   
34.             AnnotationBeanConfigurerAspect.aspectOf().ajc$afterReturning$org_springframework_beans_factory_aspectj_AbstractDependencyInjectionAspect$2$1ea6722c(this);   
35.     }   
36.   
37.     public static String ajc$privFieldGet$com_javaeye_domain_Employee_Roo_JavaBean$com_javaeye_domain_Employee$name(Employee employee)   
38.     {   
39.         return employee.name;   
40.     }   
41.   
42.     public static void ajc$privFieldSet$com_javaeye_domain_Employee_Roo_JavaBean$com_javaeye_domain_Employee$name(Employee employee, String s)   
43.     {   
44.         employee.name = s;   
45.     }   
46.   
47.     public static Date ajc$privFieldGet$com_javaeye_domain_Employee_Roo_JavaBean$com_javaeye_domain_Employee$birth(Employee employee)   
48.     {   
49.         return employee.birth;   
50.     }   
51.   
52.     public static void ajc$privFieldSet$com_javaeye_domain_Employee_Roo_JavaBean$com_javaeye_domain_Employee$birth(Employee employee, Date date)   
53.     {   
54.         employee.birth = date;   
55.     }   
56.   
57.     public static long countEmployees()   
58.     {   
59.         return Employee_Roo_Entity.ajc$interMethod$com_javaeye_domain_Employee_Roo_Entity$com_javaeye_domain_Employee$countEmployees();   
60.     }   
61.   
62.     public static EntityManager entityManager()   
63.     {   
64.         return Employee_Roo_Entity.ajc$interMethod$com_javaeye_domain_Employee_Roo_Entity$com_javaeye_domain_Employee$entityManager();   
65.     }   
66.   
67.     public static List findAllEmployees()   
68.     {   
69.         return Employee_Roo_Entity.ajc$interMethod$com_javaeye_domain_Employee_Roo_Entity$com_javaeye_domain_Employee$findAllEmployees();   
70.     }   
71.   
72.     public static Employee findEmployee(Long long1)   
73.     {   
74.         return Employee_Roo_Entity.ajc$interMethod$com_javaeye_domain_Employee_Roo_Entity$com_javaeye_domain_Employee$findEmployee(long1);   
75.     }   
76.   
77.     public static List findEmployeeEntries(int i, int j)   
78.     {   
79.         return Employee_Roo_Entity.ajc$interMethod$com_javaeye_domain_Employee_Roo_Entity$com_javaeye_domain_Employee$findEmployeeEntries(i, j);   
80.     }   
81.   
82.     public void flush()   
83.     {   
84. Employee_Roo_Entity.ajc$interMethod$com_javaeye_domain_Employee_Roo_Entity$com_javaeye_domain_Employee$flush(this);   
85.     }   
86.   
87.     public Date getBirth()   
88.     {   
89.         return Employee_Roo_JavaBean.ajc$interMethod$com_javaeye_domain_Employee_Roo_JavaBean$com_javaeye_domain_Employee$getBirth(this);   
90.     }   
91.   
92.     public Long getId()   
93.     {   
94.         return Employee_Roo_Entity.ajc$interMethod$com_javaeye_domain_Employee_Roo_Entity$com_javaeye_domain_Employee$getId(this);   
95.     }   
96.   
97.     public String getName()   
98.     {   
99.         return Employee_Roo_JavaBean.ajc$interMethod$com_javaeye_domain_Employee_Roo_JavaBean$com_javaeye_domain_Employee$getName(this);   
100.     }   
101.   
102.     public Integer getVersion()   
103.     {   
104.         return Employee_Roo_Entity.ajc$interMethod$com_javaeye_domain_Employee_Roo_Entity$com_javaeye_domain_Employee$getVersion(this);   
105.     }   
106.   
107.     public void merge()   
108.     {   Employee_Roo_Entity.ajc$interMethod$com_javaeye_domain_Employee_Roo_Entity$com_javaeye_domain_Employee$merge(this);   
109.     }   
110.   
111.     public void persist()   
112.     {     Employee_Roo_Entity.ajc$interMethod$com_javaeye_domain_Employee_Roo_Entity$com_javaeye_domain_Employee$persist(this);   
113.     }   
114.   
115.     public void remove()   
116.     {   
117.         Employee_Roo_Entity.ajc$interMethod$com_javaeye_domain_Employee_Roo_Entity$com_javaeye_domain_Employee$remove(this);   
118.     }   
119.   
120.     public void setBirth(Date date)   
121.     {   
122.         Employee_Roo_JavaBean.ajc$interMethod$com_javaeye_domain_Employee_Roo_JavaBean$com_javaeye_domain_Employee$setBirth(this, date);   
123.     }   
124.   
125.     public void setId(Long long1)   
126.     {   
127.         Employee_Roo_Entity.ajc$interMethod$com_javaeye_domain_Employee_Roo_Entity$com_javaeye_domain_Employee$setId(this, long1);   
128.     }   
129.   
130.     public void setName(String s)   
131.     {   
132.         Employee_Roo_JavaBean.ajc$interMethod$com_javaeye_domain_Employee_Roo_JavaBean$com_javaeye_domain_Employee$setName(this, s);   
133.     }   
134.   
135.     public void setVersion(Integer integer)   
136.     {   
137.         Employee_Roo_Entity.ajc$interMethod$com_javaeye_domain_Employee_Roo_Entity$com_javaeye_domain_Employee$setVersion(this, integer);   
138.     }   
139.   
140.     public String toString()   
141.     {   
142.         return Employee_Roo_ToString.ajc$interMethod$com_javaeye_domain_Employee_Roo_ToString$com_javaeye_domain_Employee$toString(this);   
143.     }   
144.   
145.     private String name;   
146.     private Date birth;   
147.     public transient EntityManager ajc$interField$com_javaeye_domain$entityManager;   
148.     public Long ajc$interField$com_javaeye_domain_Employee_Roo_Entity$id;   
149.     public Integer ajc$interField$com_javaeye_domain_Employee_Roo_Entity$version;   
150.     private static final org.aspectj.lang.JoinPoint.StaticPart ajc$tjp_0; /* synthetic field */  
151.     private static final org.aspectj.lang.JoinPoint.StaticPart ajc$tjp_1; /* synthetic field */  
152.   
153.     static    
154.     {   
155.         Factory factory = new Factory("Employee.java", Class.forName("com.javaeye.domain.Employee"));   
156.         ajc$tjp_0 = factory.makeSJP("initialization", factory.makeConstructorSig("1", "org.springframework.beans.factory.aspectj.ConfigurableObject", "", "", ""), 17);   
157.         ajc$tjp_1 = factory.makeSJP("initialization", factory.makeConstructorSig("1", "com.javaeye.domain.Employee", "", "", ""), 17);   
158.     }   
159. }  

// Decompiled by DJ v3.5.5.77 Copyright 2003 Atanas Neshkov  Date: 2009-8-8 21:37:43
// Home Page : http://members.fortunecity.com/neshkov/dj.html  - Check often for new version!
// Decompiler options: packimports(3) 
// Source File Name:   Employee.java

package com.javaeye.domain;

import java.util.Date;
import java.util.List;
import javax.persistence.EntityManager;
import org.aspectj.runtime.reflect.Factory;
import org.springframework.beans.factory.annotation.Configurable;
import org.springframework.beans.factory.aspectj.*;

// Referenced classes of package com.javaeye.domain:
//            Employee_Roo_ToString, Employee_Roo_Entity, Employee_Roo_JavaBean

public class Employee
    implements ConfigurableObject
{

    public Employee()
    {
        org.aspectj.lang.JoinPoint joinpoint1 = Factory.makeJP(ajc$tjp_1, this, this);
        org.aspectj.lang.JoinPoint joinpoint = Factory.makeJP(ajc$tjp_0, this, this);
        if(this != null && getClass().isAnnotationPresent(org/springframework/beans/factory/annotation/Configurable) && AnnotationBeanConfigurerAspect.ajc$if_1((Configurable)getClass().getAnnotation(org/springframework/beans/factory/annotation/Configurable)))
            AnnotationBeanConfigurerAspect.aspectOf().ajc$before$org_springframework_beans_factory_aspectj_AbstractDependencyInjectionAspect$1$e854fa65(this);
        if(this != null && getClass().isAnnotationPresent(org/springframework/beans/factory/annotation/Configurable) && (this == null || !getClass().isAnnotationPresent(org/springframework/beans/factory/annotation/Configurable) || !AnnotationBeanConfigurerAspect.ajc$if_1((Configurable)getClass().getAnnotation(org/springframework/beans/factory/annotation/Configurable))) && AbstractDependencyInjectionAspect.ajc$if_0(joinpoint))
            AnnotationBeanConfigurerAspect.aspectOf().ajc$afterReturning$org_springframework_beans_factory_aspectj_AbstractDependencyInjectionAspect$2$1ea6722c(this);
        Employee_Roo_Entity.ajc$interFieldInit$com_javaeye_domain_Employee_Roo_Entity$com_javaeye_domain_Employee$entityManager(this);
        Employee_Roo_Entity.ajc$interFieldInit$com_javaeye_domain_Employee_Roo_Entity$com_javaeye_domain_Employee$id(this);
        Employee_Roo_Entity.ajc$interFieldInit$com_javaeye_domain_Employee_Roo_Entity$com_javaeye_domain_Employee$version(this);
        if(!AnnotationBeanConfigurerAspect.ajc$if_1((Configurable)getClass().getAnnotation(org/springframework/beans/factory/annotation/Configurable)) && AbstractDependencyInjectionAspect.ajc$if_0(joinpoint1))
            AnnotationBeanConfigurerAspect.aspectOf().ajc$afterReturning$org_springframework_beans_factory_aspectj_AbstractDependencyInjectionAspect$2$1ea6722c(this);
    }

    public static String ajc$privFieldGet$com_javaeye_domain_Employee_Roo_JavaBean$com_javaeye_domain_Employee$name(Employee employee)
    {
        return employee.name;
    }

    public static void ajc$privFieldSet$com_javaeye_domain_Employee_Roo_JavaBean$com_javaeye_domain_Employee$name(Employee employee, String s)
    {
        employee.name = s;
    }

    public static Date ajc$privFieldGet$com_javaeye_domain_Employee_Roo_JavaBean$com_javaeye_domain_Employee$birth(Employee employee)
    {
        return employee.birth;
    }

    public static void ajc$privFieldSet$com_javaeye_domain_Employee_Roo_JavaBean$com_javaeye_domain_Employee$birth(Employee employee, Date date)
    {
        employee.birth = date;
    }

    public static long countEmployees()
    {
        return Employee_Roo_Entity.ajc$interMethod$com_javaeye_domain_Employee_Roo_Entity$com_javaeye_domain_Employee$countEmployees();
    }

    public static EntityManager entityManager()
    {
        return Employee_Roo_Entity.ajc$interMethod$com_javaeye_domain_Employee_Roo_Entity$com_javaeye_domain_Employee$entityManager();
    }

    public static List findAllEmployees()
    {
        return Employee_Roo_Entity.ajc$interMethod$com_javaeye_domain_Employee_Roo_Entity$com_javaeye_domain_Employee$findAllEmployees();
    }

    public static Employee findEmployee(Long long1)
    {
        return Employee_Roo_Entity.ajc$interMethod$com_javaeye_domain_Employee_Roo_Entity$com_javaeye_domain_Employee$findEmployee(long1);
    }

    public static List findEmployeeEntries(int i, int j)
    {
        return Employee_Roo_Entity.ajc$interMethod$com_javaeye_domain_Employee_Roo_Entity$com_javaeye_domain_Employee$findEmployeeEntries(i, j);
    }

    public void flush()
    {
Employee_Roo_Entity.ajc$interMethod$com_javaeye_domain_Employee_Roo_Entity$com_javaeye_domain_Employee$flush(this);
    }

    public Date getBirth()
    {
        return Employee_Roo_JavaBean.ajc$interMethod$com_javaeye_domain_Employee_Roo_JavaBean$com_javaeye_domain_Employee$getBirth(this);
    }

    public Long getId()
    {
        return Employee_Roo_Entity.ajc$interMethod$com_javaeye_domain_Employee_Roo_Entity$com_javaeye_domain_Employee$getId(this);
    }

    public String getName()
    {
        return Employee_Roo_JavaBean.ajc$interMethod$com_javaeye_domain_Employee_Roo_JavaBean$com_javaeye_domain_Employee$getName(this);
    }

    public Integer getVersion()
    {
        return Employee_Roo_Entity.ajc$interMethod$com_javaeye_domain_Employee_Roo_Entity$com_javaeye_domain_Employee$getVersion(this);
    }

    public void merge()
    {   Employee_Roo_Entity.ajc$interMethod$com_javaeye_domain_Employee_Roo_Entity$com_javaeye_domain_Employee$merge(this);
    }

    public void persist()
    {     Employee_Roo_Entity.ajc$interMethod$com_javaeye_domain_Employee_Roo_Entity$com_javaeye_domain_Employee$persist(this);
    }

    public void remove()
    {
        Employee_Roo_Entity.ajc$interMethod$com_javaeye_domain_Employee_Roo_Entity$com_javaeye_domain_Employee$remove(this);
    }

    public void setBirth(Date date)
    {
        Employee_Roo_JavaBean.ajc$interMethod$com_javaeye_domain_Employee_Roo_JavaBean$com_javaeye_domain_Employee$setBirth(this, date);
    }

    public void setId(Long long1)
    {
        Employee_Roo_Entity.ajc$interMethod$com_javaeye_domain_Employee_Roo_Entity$com_javaeye_domain_Employee$setId(this, long1);
    }

    public void setName(String s)
    {
        Employee_Roo_JavaBean.ajc$interMethod$com_javaeye_domain_Employee_Roo_JavaBean$com_javaeye_domain_Employee$setName(this, s);
    }

    public void setVersion(Integer integer)
    {
        Employee_Roo_Entity.ajc$interMethod$com_javaeye_domain_Employee_Roo_Entity$com_javaeye_domain_Employee$setVersion(this, integer);
    }

    public String toString()
    {
        return Employee_Roo_ToString.ajc$interMethod$com_javaeye_domain_Employee_Roo_ToString$com_javaeye_domain_Employee$toString(this);
    }

    private String name;
    private Date birth;
    public transient EntityManager ajc$interField$com_javaeye_domain$entityManager;
    public Long ajc$interField$com_javaeye_domain_Employee_Roo_Entity$id;
    public Integer ajc$interField$com_javaeye_domain_Employee_Roo_Entity$version;
    private static final org.aspectj.lang.JoinPoint.StaticPart ajc$tjp_0; /* synthetic field */
    private static final org.aspectj.lang.JoinPoint.StaticPart ajc$tjp_1; /* synthetic field */

    static 
    {
        Factory factory = new Factory("Employee.java", Class.forName("com.javaeye.domain.Employee"));
        ajc$tjp_0 = factory.makeSJP("initialization", factory.makeConstructorSig("1", "org.springframework.beans.factory.aspectj.ConfigurableObject", "", "", ""), 17);
        ajc$tjp_1 = factory.makeSJP("initialization", factory.makeConstructorSig("1", "com.javaeye.domain.Employee", "", "", ""), 17);
    }
}

经过反编译生成的class发现，通过domain类上面的roo注释，自动在类编译时加入get set，甚至我们发现了findAllEmployees，persist，remove，哈，这不是我们梦寐以求的充血模型吗？

原来，roo在为我们创建domain的时候自动为同一个domain创建了4个aspect(.aj files)，并在编译期动态为domain切入代码.
4个aspect分别是：
domainName_Roo_Configurable.aj(配置)
domainName_Roo_Entity.aj(加入orm持久)
domainName_Roo_JavaBean.aj(为字段生成get set)
domainName_Roo_ToString.aj(重写toString)


可见，使用roo我们彻底摆脱了在daomain里对各个属性写get set，并且使domain摇身一变为充血。

下一步，就是建Controller了，同样是一条语句

Roo shell代码

1. new controller automatic -formBackingObject ~.domain.Employee -name ~.web.CommentController  

new controller automatic -formBackingObject ~.domain.Employee -name ~.web.CommentController

你会发现，EmployeeController，spring mvc的配置以及curd的jsp页面全部生成了

EmployeeController代码如下：

Java代码

1. @RooWebScaffold(automaticallyMaintainView = true, formBackingObject = Employee.class)   
2. @RequestMapping("/employee/**")   
3. @Controller  
4. public class EmployeeController {   
5. }  

@RooWebScaffold(automaticallyMaintainView = true, formBackingObject = Employee.class)
@RequestMapping("/employee/**")
@Controller
public class EmployeeController {
}

在这里出现了一行@RooWebScaffold注解，做过rails的人会想，这不是rails里面的scaffold吗？没错，通过@RooWebScaffold注解，EmployeeController自动获得了curd的所有功能。

同样是生成controllerName_Roo_Controller.aj在编译期织入代码

我们来看看生成的EmployeeController_Roo_Controller.aj:

Java代码

1. package com.javaeye.web;   
2.   
3. privileged aspect EmployeeController_Roo_Controller {   
4.        
5.     @org.springframework.web.bind.annotation.RequestMapping(value = "/employee", method = org.springframework.web.bind.annotation.RequestMethod.POST)       
6.     public java.lang.String EmployeeController.create(@org.springframework.web.bind.annotation.ModelAttribute("employee") com.javaeye.domain.Employee employee, org.springframework.validation.BindingResult result) {       
7.         if (employee == null) throw new IllegalArgumentException("A employee is required");           
8.         for(javax.validation.ConstraintViolation<com.javaeye.domain.Employee> constraint : javax.validation.Validation.buildDefaultValidatorFactory().getValidator().validate(employee)) {           
9.             result.rejectValue(constraint.getPropertyPath(), null, constraint.getMessage());               
10.         }           
11.         if (result.hasErrors()) {           
12.             return "employee/create";               
13.         }           
14.         employee.persist();           
15.         return "redirect:/employee/" + employee.getId();           
16.     }       
17.        
18.     @org.springframework.web.bind.annotation.RequestMapping(value = "/employee/form", method = org.springframework.web.bind.annotation.RequestMethod.GET)       
19.     public java.lang.String EmployeeController.createForm(org.springframework.ui.ModelMap modelMap) {       
20.         modelMap.addAttribute("employee", new com.javaeye.domain.Employee());           
21.         return "employee/create";           
22.     }       
23.        
24.     @org.springframework.web.bind.annotation.RequestMapping(value = "/employee/{id}", method = org.springframework.web.bind.annotation.RequestMethod.GET)       
25.     public java.lang.String EmployeeController.show(@org.springframework.web.bind.annotation.PathVariable("id") java.lang.Long id, org.springframework.ui.ModelMap modelMap) {       
26.         if (id == null) throw new IllegalArgumentException("An Identifier is required");           
27.         modelMap.addAttribute("employee", com.javaeye.domain.Employee.findEmployee(id));           
28.         return "employee/show";           
29.     }       
30.        
31.     @org.springframework.web.bind.annotation.RequestMapping(value = "/employee", method = org.springframework.web.bind.annotation.RequestMethod.GET)       
32.     public java.lang.String EmployeeController.list(org.springframework.ui.ModelMap modelMap) {       
33.         modelMap.addAttribute("employees", com.javaeye.domain.Employee.findAllEmployees());           
34.         return "employee/list";           
35.     }       
36.        
37.     @org.springframework.web.bind.annotation.RequestMapping(method = org.springframework.web.bind.annotation.RequestMethod.PUT)       
38.     public java.lang.String EmployeeController.update(@org.springframework.web.bind.annotation.ModelAttribute("employee") com.javaeye.domain.Employee employee, org.springframework.validation.BindingResult result) {       
39.         if (employee == null) throw new IllegalArgumentException("A employee is required");           
40.         for(javax.validation.ConstraintViolation<com.javaeye.domain.Employee> constraint : javax.validation.Validation.buildDefaultValidatorFactory().getValidator().validate(employee)) {           
41.             result.rejectValue(constraint.getPropertyPath(), null, constraint.getMessage());               
42.         }           
43.         if (result.hasErrors()) {           
44.             return "employee/update";               
45.         }           
46.         employee.merge();           
47.         return "redirect:/employee/" + employee.getId();           
48.     }       
49.        
50.     @org.springframework.web.bind.annotation.RequestMapping(value = "/employee/{id}/form", method = org.springframework.web.bind.annotation.RequestMethod.GET)       
51.     public java.lang.String EmployeeController.updateForm(@org.springframework.web.bind.annotation.PathVariable("id") java.lang.Long id, org.springframework.ui.ModelMap modelMap) {       
52.         if (id == null) throw new IllegalArgumentException("An Identifier is required");           
53.         modelMap.addAttribute("employee", com.javaeye.domain.Employee.findEmployee(id));           
54.         return "employee/update";           
55.     }       
56.        
57.     @org.springframework.web.bind.annotation.RequestMapping(value = "/employee/{id}", method = org.springframework.web.bind.annotation.RequestMethod.DELETE)       
58.     public java.lang.String EmployeeController.delete(@org.springframework.web.bind.annotation.PathVariable("id") java.lang.Long id) {       
59.         if (id == null) throw new IllegalArgumentException("An Identifier is required");           
60.         com.javaeye.domain.Employee.findEmployee(id).remove();           
61.         return "redirect:/employee";           
62.     }       
63.        
64.     @org.springframework.web.bind.annotation.InitBinder       
65.     public void EmployeeController.initBinder(org.springframework.web.bind.WebDataBinder binder) {       
66.         binder.registerCustomEditor(java.util.Date.class, new org.springframework.beans.propertyeditors.CustomDateEditor(new java.text.SimpleDateFormat("yyyy-M-d"), false));           
67.     }       
68.        
69. }  

package com.javaeye.web;

privileged aspect EmployeeController_Roo_Controller {
    
    @org.springframework.web.bind.annotation.RequestMapping(value = "/employee", method = org.springframework.web.bind.annotation.RequestMethod.POST)    
    public java.lang.String EmployeeController.create(@org.springframework.web.bind.annotation.ModelAttribute("employee") com.javaeye.domain.Employee employee, org.springframework.validation.BindingResult result) {    
        if (employee == null) throw new IllegalArgumentException("A employee is required");        
        for(javax.validation.ConstraintViolation<com.javaeye.domain.Employee> constraint : javax.validation.Validation.buildDefaultValidatorFactory().getValidator().validate(employee)) {        
            result.rejectValue(constraint.getPropertyPath(), null, constraint.getMessage());            
        }        
        if (result.hasErrors()) {        
            return "employee/create";            
        }        
        employee.persist();        
        return "redirect:/employee/" + employee.getId();        
    }    
    
    @org.springframework.web.bind.annotation.RequestMapping(value = "/employee/form", method = org.springframework.web.bind.annotation.RequestMethod.GET)    
    public java.lang.String EmployeeController.createForm(org.springframework.ui.ModelMap modelMap) {    
        modelMap.addAttribute("employee", new com.javaeye.domain.Employee());        
        return "employee/create";        
    }    
    
    @org.springframework.web.bind.annotation.RequestMapping(value = "/employee/{id}", method = org.springframework.web.bind.annotation.RequestMethod.GET)    
    public java.lang.String EmployeeController.show(@org.springframework.web.bind.annotation.PathVariable("id") java.lang.Long id, org.springframework.ui.ModelMap modelMap) {    
        if (id == null) throw new IllegalArgumentException("An Identifier is required");        
        modelMap.addAttribute("employee", com.javaeye.domain.Employee.findEmployee(id));        
        return "employee/show";        
    }    
    
    @org.springframework.web.bind.annotation.RequestMapping(value = "/employee", method = org.springframework.web.bind.annotation.RequestMethod.GET)    
    public java.lang.String EmployeeController.list(org.springframework.ui.ModelMap modelMap) {    
        modelMap.addAttribute("employees", com.javaeye.domain.Employee.findAllEmployees());        
        return "employee/list";        
    }    
    
    @org.springframework.web.bind.annotation.RequestMapping(method = org.springframework.web.bind.annotation.RequestMethod.PUT)    
    public java.lang.String EmployeeController.update(@org.springframework.web.bind.annotation.ModelAttribute("employee") com.javaeye.domain.Employee employee, org.springframework.validation.BindingResult result) {    
        if (employee == null) throw new IllegalArgumentException("A employee is required");        
        for(javax.validation.ConstraintViolation<com.javaeye.domain.Employee> constraint : javax.validation.Validation.buildDefaultValidatorFactory().getValidator().validate(employee)) {        
            result.rejectValue(constraint.getPropertyPath(), null, constraint.getMessage());            
        }        
        if (result.hasErrors()) {        
            return "employee/update";            
        }        
        employee.merge();        
        return "redirect:/employee/" + employee.getId();        
    }    
    
    @org.springframework.web.bind.annotation.RequestMapping(value = "/employee/{id}/form", method = org.springframework.web.bind.annotation.RequestMethod.GET)    
    public java.lang.String EmployeeController.updateForm(@org.springframework.web.bind.annotation.PathVariable("id") java.lang.Long id, org.springframework.ui.ModelMap modelMap) {    
        if (id == null) throw new IllegalArgumentException("An Identifier is required");        
        modelMap.addAttribute("employee", com.javaeye.domain.Employee.findEmployee(id));        
        return "employee/update";        
    }    
    
    @org.springframework.web.bind.annotation.RequestMapping(value = "/employee/{id}", method = org.springframework.web.bind.annotation.RequestMethod.DELETE)    
    public java.lang.String EmployeeController.delete(@org.springframework.web.bind.annotation.PathVariable("id") java.lang.Long id) {    
        if (id == null) throw new IllegalArgumentException("An Identifier is required");        
        com.javaeye.domain.Employee.findEmployee(id).remove();        
        return "redirect:/employee";        
    }    
    
    @org.springframework.web.bind.annotation.InitBinder    
    public void EmployeeController.initBinder(org.springframework.web.bind.WebDataBinder binder) {    
        binder.registerCustomEditor(java.util.Date.class, new org.springframework.beans.propertyeditors.CustomDateEditor(new java.text.SimpleDateFormat("yyyy-M-d"), false));        
    }    
    
}

这样，Controller里不用写一行代码，就自动拥有了curd，而且，最新的roo使用了spring3.0，还支持了rest