@Id
@GeneratedValue(strategy=GenerationType.IDENTITY)
private String Codigo;
private String Nome;
private String Cpf;
private String End;
private String Cep;
private String Tel;

public String getCodigo() {
    return Codigo;
}

public void setCodigo(String codigo) {
    Codigo = codigo;
}

public String getNome() {
    return Nome;
}

public void setNome(String nome) {
    Nome = nome;
}

public String getCpf() {
    return Cpf;
}

public void setCpf(String cpf) {
    Cpf = cpf;
}

public String getEnd() {
    return End;
}

public void setEnd(String end) {
    End = end;
}

public String getCep() {
    return Cep;
}

public void setCep(String cep) {
    Cep = cep;
}

public String getTel() {
    return Tel;
}

public void setTel(String tel) {
    Tel = tel;
}

public void cadastrar(){

    if("".equals(cliente.getNome())){
    Severity severity =FacesMessage.SEVERITY_ERROR;
    String summary = "Digite o Nome";
    String detail =" Favor digite o Nome do Cliente";

    FacesMessage message = new FacesMessage(severity,summary,detail);
    FacesContext.getCurrentInstance().addMessage("frm:nome",message);

    }
    if("".equals(cliente.getCpf())){
        Severity severity =FacesMessage.SEVERITY_ERROR;
        String summary = "Digite o CPF";
        String detail =" Favor digite o CPF do cliente";

        FacesMessage message = new FacesMessage(severity,summary,detail);
        FacesContext.getCurrentInstance().addMessage("frm:cpf",message);

        }
    if("".equals(cliente.getEnd())){
        Severity severity =FacesMessage.SEVERITY_ERROR;
        String summary = "Digite Endereço";
        String detail =" Favor digite endereço do cliente";

        FacesMessage message = new FacesMessage(severity,summary,detail);
        FacesContext.getCurrentInstance().addMessage("frm:end",message);

        }
    if("".equals(cliente.getCep())){
        Severity severity =FacesMessage.SEVERITY_ERROR;
        String summary = "Digite CEP";
        String detail =" Favor digite CEP do cliente";

        FacesMessage message = new FacesMessage(severity,summary,detail);
        FacesContext.getCurrentInstance().addMessage("frm:cep",message);

        }
    if("".equals(cliente.getTel())){
        Severity severity =FacesMessage.SEVERITY_ERROR;
        String summary = "Digite Endereço";
        String detail =" Favor digite telefone do cliente";

        FacesMessage message = new FacesMessage(severity,summary,detail);
        FacesContext.getCurrentInstance().addMessage("frm:tel",message);

        }
    if(

            !"".equals(cliente.getNome())  &&
            !"".equals(cliente.getCpf() )  &&
            !"".equals(cliente.getEnd() )  &&
            !"".equals(cliente.getCep() )  &&
            !"".equals(cliente.getTel() )
       )
    {
        cliente = new Cliente();

        EntityManagerFactory emf = Persistence.createEntityManagerFactory("clientePU");
        EntityManager em = emf.createEntityManager();


        em.getTransaction().begin();
        em.persist(cliente);
        em.getTransaction().commit();

        em.close();

        cliente = new Cliente();

        Severity severity =FacesMessage.SEVERITY_ERROR;
        String summary = "Cliente Cadastrado com Sucesso";
        String detail ="O Cliente foi cadastrado na base de dados";

        FacesMessage message = new FacesMessage(severity,summary,detail);
        FacesContext.getCurrentInstance().addMessage("frm:salvar",message);
        }

}

public Cliente getCliente() {
    return cliente;
}

public void setUsuario(Cliente cliente) {
    this.cliente = cliente;
}

<persistence-unit name="clientePU" transaction-type="RESOURCE_LOCAL">

    <properties>
        <property name="javax.persistence.jdbc.url" value="jdbc:mysql://localhost:3306/cliente"/>
        <property name="javax.persistence.jdbc.user" value="root"/>
        <property name="javax.persistence.jdbc.password" value=""/>
        <property name="javax.persistence.jdbc.driver" value="com.mysql.jdbc.Driver"/>

        <!-- validate | update | create | create-drop -->
        <property name="hibernate.hbm2ddl.auto" value="update"/>
        <property name="hibernate.dialect" value="org.hibernate.dialect.MySQLDialect"/>


    </properties>

</persistence-unit>